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* BACKPORT: arch: wire-up pidfd_open()Christian Brauner2022-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This wires up the pidfd_open() syscall into all arches at once. Signed-off-by: Christian Brauner <christian@brauner.io> Reviewed-by: David Howells <dhowells@redhat.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Kees Cook <keescook@chromium.org> Cc: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jann Horn <jannh@google.com> Cc: Andy Lutomirsky <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Aleksa Sarai <cyphar@cyphar.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-api@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-xtensa@linux-xtensa.org Cc: linux-arch@vger.kernel.org Cc: x86@kernel.org (cherry picked from commit 7615d9e1780e26e0178c93c55b73309a5dc093d7) Conflicts: arch/alpha/kernel/syscalls/syscall.tbl arch/arm/tools/syscall.tbl arch/ia64/kernel/syscalls/syscall.tbl arch/m68k/kernel/syscalls/syscall.tbl arch/microblaze/kernel/syscalls/syscall.tbl arch/mips/kernel/syscalls/syscall_n32.tbl arch/mips/kernel/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_o32.tbl arch/parisc/kernel/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl arch/sh/kernel/syscalls/syscall.tbl arch/sparc/kernel/syscalls/syscall.tbl arch/xtensa/kernel/syscalls/syscall.tbl arch/x86/entry/syscalls/syscall_32.tbl arch/x86/entry/syscalls/syscall_64.tbl (1. Skipped syscall.tbl modifications for missing architectures. 2. Removed __ia32_sys_pidfd_open in arch/x86/entry/syscalls/syscall_32.tbl. 3. Replaced __x64_sys_pidfd_open with sys_pidfd_open in arch/x86/entry/syscalls/syscall_64.tbl.) Bug: 135608568 Test: test program using syscall(__NR_sys_pidfd_open,..) and poll() Change-Id: I294aa33dea5ed2662e077340281d7aa0452f7471 Signed-off-by: Suren Baghdasaryan <surenb@google.com>
* BACKPORT: signal: add pidfd_send_signal() syscallChristian Brauner2022-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kill() syscall operates on process identifiers (pid). After a process has exited its pid can be reused by another process. If a caller sends a signal to a reused pid it will end up signaling the wrong process. This issue has often surfaced and there has been a push to address this problem [1]. This patch uses file descriptors (fd) from proc/<pid> as stable handles on struct pid. Even if a pid is recycled the handle will not change. The fd can be used to send signals to the process it refers to. Thus, the new syscall pidfd_send_signal() is introduced to solve this problem. Instead of pids it operates on process fds (pidfd). /* prototype and argument /* long pidfd_send_signal(int pidfd, int sig, siginfo_t *info, unsigned int flags); /* syscall number 424 */ The syscall number was chosen to be 424 to align with Arnd's rework in his y2038 to minimize merge conflicts (cf. [25]). In addition to the pidfd and signal argument it takes an additional siginfo_t and flags argument. If the siginfo_t argument is NULL then pidfd_send_signal() is equivalent to kill(<positive-pid>, <signal>). If it is not NULL pidfd_send_signal() is equivalent to rt_sigqueueinfo(). The flags argument is added to allow for future extensions of this syscall. It currently needs to be passed as 0. Failing to do so will cause EINVAL. /* pidfd_send_signal() replaces multiple pid-based syscalls */ The pidfd_send_signal() syscall currently takes on the job of rt_sigqueueinfo(2) and parts of the functionality of kill(2), Namely, when a positive pid is passed to kill(2). It will however be possible to also replace tgkill(2) and rt_tgsigqueueinfo(2) if this syscall is extended. /* sending signals to threads (tid) and process groups (pgid) */ Specifically, the pidfd_send_signal() syscall does currently not operate on process groups or threads. This is left for future extensions. In order to extend the syscall to allow sending signal to threads and process groups appropriately named flags (e.g. PIDFD_TYPE_PGID, and PIDFD_TYPE_TID) should be added. This implies that the flags argument will determine what is signaled and not the file descriptor itself. Put in other words, grouping in this api is a property of the flags argument not a property of the file descriptor (cf. [13]). Clarification for this has been requested by Eric (cf. [19]). When appropriate extensions through the flags argument are added then pidfd_send_signal() can additionally replace the part of kill(2) which operates on process groups as well as the tgkill(2) and rt_tgsigqueueinfo(2) syscalls. How such an extension could be implemented has been very roughly sketched in [14], [15], and [16]. However, this should not be taken as a commitment to a particular implementation. There might be better ways to do it. Right now this is intentionally left out to keep this patchset as simple as possible (cf. [4]). /* naming */ The syscall had various names throughout iterations of this patchset: - procfd_signal() - procfd_send_signal() - taskfd_send_signal() In the last round of reviews it was pointed out that given that if the flags argument decides the scope of the signal instead of different types of fds it might make sense to either settle for "procfd_" or "pidfd_" as prefix. The community was willing to accept either (cf. [17] and [18]). Given that one developer expressed strong preference for the "pidfd_" prefix (cf. [13]) and with other developers less opinionated about the name we should settle for "pidfd_" to avoid further bikeshedding. The "_send_signal" suffix was chosen to reflect the fact that the syscall takes on the job of multiple syscalls. It is therefore intentional that the name is not reminiscent of neither kill(2) nor rt_sigqueueinfo(2). Not the fomer because it might imply that pidfd_send_signal() is a replacement for kill(2), and not the latter because it is a hassle to remember the correct spelling - especially for non-native speakers - and because it is not descriptive enough of what the syscall actually does. The name "pidfd_send_signal" makes it very clear that its job is to send signals. /* zombies */ Zombies can be signaled just as any other process. No special error will be reported since a zombie state is an unreliable state (cf. [3]). However, this can be added as an extension through the @flags argument if the need ever arises. /* cross-namespace signals */ The patch currently enforces that the signaler and signalee either are in the same pid namespace or that the signaler's pid namespace is an ancestor of the signalee's pid namespace. This is done for the sake of simplicity and because it is unclear to what values certain members of struct siginfo_t would need to be set to (cf. [5], [6]). /* compat syscalls */ It became clear that we would like to avoid adding compat syscalls (cf. [7]). The compat syscall handling is now done in kernel/signal.c itself by adding __copy_siginfo_from_user_generic() which lets us avoid compat syscalls (cf. [8]). It should be noted that the addition of __copy_siginfo_from_user_any() is caused by a bug in the original implementation of rt_sigqueueinfo(2) (cf. 12). With upcoming rework for syscall handling things might improve significantly (cf. [11]) and __copy_siginfo_from_user_any() will not gain any additional callers. /* testing */ This patch was tested on x64 and x86. /* userspace usage */ An asciinema recording for the basic functionality can be found under [9]. With this patch a process can be killed via: #define _GNU_SOURCE #include <errno.h> #include <fcntl.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/stat.h> #include <sys/syscall.h> #include <sys/types.h> #include <unistd.h> static inline int do_pidfd_send_signal(int pidfd, int sig, siginfo_t *info, unsigned int flags) { #ifdef __NR_pidfd_send_signal return syscall(__NR_pidfd_send_signal, pidfd, sig, info, flags); #else return -ENOSYS; #endif } int main(int argc, char *argv[]) { int fd, ret, saved_errno, sig; if (argc < 3) exit(EXIT_FAILURE); fd = open(argv[1], O_DIRECTORY | O_CLOEXEC); if (fd < 0) { printf("%s - Failed to open \"%s\"\n", strerror(errno), argv[1]); exit(EXIT_FAILURE); } sig = atoi(argv[2]); printf("Sending signal %d to process %s\n", sig, argv[1]); ret = do_pidfd_send_signal(fd, sig, NULL, 0); saved_errno = errno; close(fd); errno = saved_errno; if (ret < 0) { printf("%s - Failed to send signal %d to process %s\n", strerror(errno), sig, argv[1]); exit(EXIT_FAILURE); } exit(EXIT_SUCCESS); } /* Q&A * Given that it seems the same questions get asked again by people who are * late to the party it makes sense to add a Q&A section to the commit * message so it's hopefully easier to avoid duplicate threads. * * For the sake of progress please consider these arguments settled unless * there is a new point that desperately needs to be addressed. Please make * sure to check the links to the threads in this commit message whether * this has not already been covered. */ Q-01: (Florian Weimer [20], Andrew Morton [21]) What happens when the target process has exited? A-01: Sending the signal will fail with ESRCH (cf. [22]). Q-02: (Andrew Morton [21]) Is the task_struct pinned by the fd? A-02: No. A reference to struct pid is kept. struct pid - as far as I understand - was created exactly for the reason to not require to pin struct task_struct (cf. [22]). Q-03: (Andrew Morton [21]) Does the entire procfs directory remain visible? Just one entry within it? A-03: The same thing that happens right now when you hold a file descriptor to /proc/<pid> open (cf. [22]). Q-04: (Andrew Morton [21]) Does the pid remain reserved? A-04: No. This patchset guarantees a stable handle not that pids are not recycled (cf. [22]). Q-05: (Andrew Morton [21]) Do attempts to signal that fd return errors? A-05: See {Q,A}-01. Q-06: (Andrew Morton [22]) Is there a cleaner way of obtaining the fd? Another syscall perhaps. A-06: Userspace can already trivially retrieve file descriptors from procfs so this is something that we will need to support anyway. Hence, there's no immediate need to add another syscalls just to make pidfd_send_signal() not dependent on the presence of procfs. However, adding a syscalls to get such file descriptors is planned for a future patchset (cf. [22]). Q-07: (Andrew Morton [21] and others) This fd-for-a-process sounds like a handy thing and people may well think up other uses for it in the future, probably unrelated to signals. Are the code and the interface designed to permit such future applications? A-07: Yes (cf. [22]). Q-08: (Andrew Morton [21] and others) Now I think about it, why a new syscall? This thing is looking rather like an ioctl? A-08: This has been extensively discussed. It was agreed that a syscall is preferred for a variety or reasons. Here are just a few taken from prior threads. Syscalls are safer than ioctl()s especially when signaling to fds. Processes are a core kernel concept so a syscall seems more appropriate. The layout of the syscall with its four arguments would require the addition of a custom struct for the ioctl() thereby causing at least the same amount or even more complexity for userspace than a simple syscall. The new syscall will replace multiple other pid-based syscalls (see description above). The file-descriptors-for-processes concept introduced with this syscall will be extended with other syscalls in the future. See also [22], [23] and various other threads already linked in here. Q-09: (Florian Weimer [24]) What happens if you use the new interface with an O_PATH descriptor? A-09: pidfds opened as O_PATH fds cannot be used to send signals to a process (cf. [2]). Signaling processes through pidfds is the equivalent of writing to a file. Thus, this is not an operation that operates "purely at the file descriptor level" as required by the open(2) manpage. See also [4]. /* References */ [1]: https://lore.kernel.org/lkml/20181029221037.87724-1-dancol@google.com/ [2]: https://lore.kernel.org/lkml/874lbtjvtd.fsf@oldenburg2.str.redhat.com/ [3]: https://lore.kernel.org/lkml/20181204132604.aspfupwjgjx6fhva@brauner.io/ [4]: https://lore.kernel.org/lkml/20181203180224.fkvw4kajtbvru2ku@brauner.io/ [5]: https://lore.kernel.org/lkml/20181121213946.GA10795@mail.hallyn.com/ [6]: https://lore.kernel.org/lkml/20181120103111.etlqp7zop34v6nv4@brauner.io/ [7]: https://lore.kernel.org/lkml/36323361-90BD-41AF-AB5B-EE0D7BA02C21@amacapital.net/ [8]: https://lore.kernel.org/lkml/87tvjxp8pc.fsf@xmission.com/ [9]: https://asciinema.org/a/IQjuCHew6bnq1cr78yuMv16cy [11]: https://lore.kernel.org/lkml/F53D6D38-3521-4C20-9034-5AF447DF62FF@amacapital.net/ [12]: https://lore.kernel.org/lkml/87zhtjn8ck.fsf@xmission.com/ [13]: https://lore.kernel.org/lkml/871s6u9z6u.fsf@xmission.com/ [14]: https://lore.kernel.org/lkml/20181206231742.xxi4ghn24z4h2qki@brauner.io/ [15]: https://lore.kernel.org/lkml/20181207003124.GA11160@mail.hallyn.com/ [16]: https://lore.kernel.org/lkml/20181207015423.4miorx43l3qhppfz@brauner.io/ [17]: https://lore.kernel.org/lkml/CAGXu5jL8PciZAXvOvCeCU3wKUEB_dU-O3q0tDw4uB_ojMvDEew@mail.gmail.com/ [18]: https://lore.kernel.org/lkml/20181206222746.GB9224@mail.hallyn.com/ [19]: https://lore.kernel.org/lkml/20181208054059.19813-1-christian@brauner.io/ [20]: https://lore.kernel.org/lkml/8736rebl9s.fsf@oldenburg.str.redhat.com/ [21]: https://lore.kernel.org/lkml/20181228152012.dbf0508c2508138efc5f2bbe@linux-foundation.org/ [22]: https://lore.kernel.org/lkml/20181228233725.722tdfgijxcssg76@brauner.io/ [23]: https://lwn.net/Articles/773459/ [24]: https://lore.kernel.org/lkml/8736rebl9s.fsf@oldenburg.str.redhat.com/ [25]: https://lore.kernel.org/lkml/CAK8P3a0ej9NcJM8wXNPbcGUyOUZYX+VLoDFdbenW3s3114oQZw@mail.gmail.com/ Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Jann Horn <jannh@google.com> Cc: Andy Lutomirsky <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Florian Weimer <fweimer@redhat.com> Signed-off-by: Christian Brauner <christian@brauner.io> Reviewed-by: Tycho Andersen <tycho@tycho.ws> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Serge Hallyn <serge@hallyn.com> Acked-by: Aleksa Sarai <cyphar@cyphar.com> (cherry picked from commit 3eb39f47934f9d5a3027fe00d906a45fe3a15fad) Conflicts: arch/x86/entry/syscalls/syscall_32.tbl - trivial manual merge arch/x86/entry/syscalls/syscall_64.tbl - trivial manual merge include/linux/proc_fs.h - trivial manual merge include/linux/syscalls.h - trivial manual merge include/uapi/asm-generic/unistd.h - trivial manual merge kernel/signal.c - struct kernel_siginfo does not exist in 4.14 kernel/sys_ni.c - cond_syscall is used instead of COND_SYSCALL arch/x86/entry/syscalls/syscall_32.tbl arch/x86/entry/syscalls/syscall_64.tbl (1. manual merges because of 4.14 differences 2. change prepare_kill_siginfo() to use struct siginfo instead of kernel_siginfo 3. use copy_from_user() instead of copy_siginfo_from_user() in copy_siginfo_from_user_any() 4. replaced COND_SYSCALL with cond_syscall 5. Removed __ia32_sys_pidfd_send_signal in arch/x86/entry/syscalls/syscall_32.tbl. 6. Replaced __x64_sys_pidfd_send_signal with sys_pidfd_send_signal in arch/x86/entry/syscalls/syscall_64.tbl.) Bug: 135608568 Test: test program using syscall(__NR_pidfd_send_signal,..) to send SIGKILL Change-Id: I34da11c63ac8cafb0353d9af24c820cef519ec27 Signed-off-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: electimon <electimon@gmail.com>
* Merge branch 'android-4.4-p' of ↵Michael Bestas2021-07-10
|\ | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998 This brings LA.UM.9.2.r1-03400-SDMxx0.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: b5f0035416310 Merge 4.4.274 into android-4.4-p Conflicts: include/linux/spi/spi.h Change-Id: I3daac7891ee93c70ffe08b7e70b77e8b2989af67
| * Merge 4.4.271 into android-4.4-pGreg Kroah-Hartman2021-06-03
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.271 mm, vmstat: drop zone->lock in /proc/pagetypeinfo netfilter: x_tables: Use correct memory barriers. NFC: nci: fix memory leak in nci_allocate_device proc: Check /proc/$pid/attr/ writes against file opener net: hso: fix control-request directions mac80211: assure all fragments are encrypted mac80211: prevent mixed key and fragment cache attacks mac80211: properly handle A-MSDUs that start with an RFC 1042 header cfg80211: mitigate A-MSDU aggregation attacks mac80211: drop A-MSDUs on old ciphers mac80211: add fragment cache to sta_info mac80211: check defrag PN against current frame mac80211: prevent attacks on TKIP/WEP as well mac80211: do not accept/forward invalid EAPOL frames mac80211: extend protection against mixed key and fragment cache attacks dm snapshot: properly fix a crash when an origin has no snapshots kgdb: fix gcc-11 warnings harder misc/uss720: fix memory leak in uss720_probe mei: request autosuspend after sending rx flow control staging: iio: cdc: ad7746: avoid overwrite of num_channels iio: adc: ad7793: Add missing error code in ad7793_setup() USB: trancevibrator: fix control-request direction serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait' USB: serial: option: add Telit LE910-S1 compositions 0x7010, 0x7011 USB: serial: ftdi_sio: add IDs for IDS GmbH Products USB: serial: pl2303: add device id for ADLINK ND-6530 GC net: usb: fix memory leak in smsc75xx_bind spi: Fix use-after-free with devm_spi_alloc_* spi: spi-sh: Fix use-after-free on unbind Bluetooth: cmtp: fix file refcount when cmtp_attach_device fails NFS: fix an incorrect limit in filelayout_decode_layout() NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce() NFSv4: Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config net/mlx4: Fix EEPROM dump support Revert "net:tipc: Fix a double free in tipc_sk_mcast_rcv" tipc: skb_linearize the head skb when reassembling msgs i2c: s3c2410: fix possible NULL pointer deref on read message after write i2c: i801: Don't generate an interrupt on bus reset platform/x86: hp_accel: Avoid invoking _INI to speed up resume net: fujitsu: fix potential null-ptr-deref net: caif: remove BUG_ON(dev == NULL) in caif_xmit char: hpet: add checks after calling ioremap isdn: mISDNinfineon: check/cleanup ioremap failure correctly in setup_io libertas: register sysfs groups properly media: dvb: Add check on sp8870_readreg return media: gspca: properly check for errors in po1030_probe() scsi: BusLogic: Fix 64-bit system enumeration error for Buslogic openrisc: Define memory barrier mb btrfs: do not BUG_ON in link_to_fixup_dir drm/amdgpu: Fix a use-after-free net: netcp: Fix an error message net: bnx2: Fix error return code in bnx2_init_board() mld: fix panic in mld_newpack() staging: emxx_udc: fix loop in _nbu2ss_nuke() scsi: libsas: Use _safe() loop in sas_resume_port() sch_dsmark: fix a NULL deref in qdisc_reset() MIPS: alchemy: xxs1500: add gpio-au1000.h header file MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c hugetlbfs: hugetlb_fault_mutex_hash() cleanup bluetooth: eliminate the potential race condition when removing the HCI controller usb: core: reduce power-on-good delay time of root hub x86, asm: change the GEN_*_RMWcc() macros to not quote the condition x86/asm: Add instruction suffixes to bitops x86/entry/64: Add instruction suffix Linux 4.4.271 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I4d2a335d92f357364741f729648d8946007ba04c
| | * x86/entry/64: Add instruction suffixJan Beulich2021-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a368d7fd2a3c6babb852fe974018dd97916bcd3b upstream. Omitting suffixes from instructions in AT&T mode is bad practice when operand size cannot be determined by the assembler from register operands, and is likely going to be warned about by upstream gas in the future (mine does already). Add the single missing suffix here. Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/5A93F96902000078001ABAC8@prv-mh.provo.novell.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge branch 'android-4.4-p' of ↵Michael Bestas2020-06-04
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05500-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 60fca75727065 Merge 4.4.226 into android-4.4-p Conflicts: drivers/base/firmware_class.c drivers/gpu/drm/msm/msm_gem.c drivers/mmc/host/sdhci.c drivers/net/wireless/ath/ath10k/core.c kernel/trace/blktrace.c net/socket.c sound/core/rawmidi.c sound/usb/mixer.c Change-Id: Ic8599e865656da72a9405c45f27091ec1ddc168c
| * | Merge 4.4.224 into android-4.4-pGreg Kroah-Hartman2020-05-20
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.224 USB: serial: qcserial: Add DW5816e support Revert "net: phy: Avoid polling PHY with PHY_IGNORE_INTERRUPTS" dp83640: reverse arguments to list_add_tail net/mlx4_core: Fix use of ENOSPC around mlx4_counter_alloc() sch_sfq: validate silly quantum values sch_choke: avoid potential panic in choke_reset() Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6" enic: do not overwrite error code ipv6: fix cleanup ordering for ip6_mr failure binfmt_elf: move brk out of mmap when doing direct loader exec x86/apm: Don't access __preempt_count with zeroed fs Revert "IB/ipoib: Update broadcast object if PKey value was changed in index 0" USB: uas: add quirk for LaCie 2Big Quadra USB: serial: garmin_gps: add sanity checking for data length batman-adv: fix batadv_nc_random_weight_tq scripts/decodecode: fix trapping instruction formatting phy: micrel: Ensure interrupts are reenabled on resume binfmt_elf: Do not move brk for INTERP-less ET_EXEC ext4: add cond_resched() to ext4_protect_reserved_inode net: ipv6: add net argument to ip6_dst_lookup_flow net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup blktrace: Fix potential deadlock between delete & sysfs ops blktrace: fix unlocked access to init/start-stop/teardown blktrace: fix trace mutex deadlock blktrace: Protect q->blk_trace with RCU blktrace: fix dereference after null check ptp: do not explicitly set drvdata in ptp_clock_register() ptp: use is_visible method to hide unused attributes ptp: create "pins" together with the rest of attributes chardev: add helper function to register char devs with a struct device ptp: Fix pass zero to ERR_PTR() in ptp_clock_register ptp: fix the race between the release of ptp_clock and cdev ptp: free ptp device pin descriptors properly net: handle no dst on skb in icmp6_send net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()' net: moxa: Fix a potential double 'free_irq()' drop_monitor: work around gcc-10 stringop-overflow warning scsi: sg: add sg_remove_request in sg_write spi: spi-dw: Add lock protect dw_spi rx/tx to prevent concurrent calls cifs: Check for timeout on Negotiate stage cifs: Fix a race condition with cifs_echo_request dmaengine: pch_dma.c: Avoid data race between probe and irq handler dmaengine: mmp_tdma: Reset channel error on release drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper() ipc/util.c: sysvipc_find_ipc() incorrectly updates position index net: openvswitch: fix csum updates for MPLS actions gre: do not keep the GRE header around in collect medata mode mm/memory_hotplug.c: fix overflow in test_pages_in_a_zone() scsi: qla2xxx: Avoid double completion of abort command i40e: avoid NVM acquire deadlock during NVM update net/mlx5: Fix driver load error flow when firmware is stuck netfilter: conntrack: avoid gcc-10 zero-length-bounds warning IB/mlx4: Test return value of calls to ib_get_cached_pkey pnp: Use list_for_each_entry() instead of open coding gcc-10 warnings: fix low-hanging fruit kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig Stop the ad-hoc games with -Wno-maybe-initialized gcc-10: disable 'zero-length-bounds' warning for now gcc-10: disable 'array-bounds' warning for now gcc-10: disable 'stringop-overflow' warning for now gcc-10: disable 'restrict' warning for now block: defer timeouts to a workqueue blk-mq: Allow timeouts to run while queue is freezing blk-mq: sync the update nr_hw_queues with blk_mq_queue_tag_busy_iter blk-mq: Allow blocking queue tag iter callbacks x86/paravirt: Remove the unused irq_enable_sysexit pv op gcc-10: avoid shadowing standard library 'free()' in crypto net: fix a potential recursive NETDEV_FEAT_CHANGE net: ipv4: really enforce backoff for redirects netlabel: cope with NULL catmap ALSA: hda/realtek - Limit int mic boost for Thinkpad T530 ALSA: rawmidi: Fix racy buffer resize under concurrent accesses ALSA: rawmidi: Initialize allocated buffers USB: gadget: fix illegal array access in binding with UDC ARM: dts: imx27-phytec-phycard-s-rdk: Fix the I2C1 pinctrl entries x86: Fix early boot crash on gcc-10, third try exec: Move would_dump into flush_old_exec usb: gadget: net2272: Fix a memory leak in an error handling path in 'net2272_plat_probe()' usb: gadget: audio: Fix a missing error return value in audio_bind() usb: gadget: legacy: fix error return code in gncm_bind() usb: gadget: legacy: fix error return code in cdc_bind() Revert "ALSA: hda/realtek: Fix pop noise on ALC225" ARM: dts: r8a7740: Add missing extal2 to CPG node KVM: x86: Fix off-by-one error in kvm_vcpu_ioctl_x86_setup_mce Makefile: disallow data races on gcc-10 as well scsi: iscsi: Fix a potential deadlock in the timeout handler Linux 4.4.224 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I384313d39dead8b0babb144803269033f4aacc53
| | * x86/paravirt: Remove the unused irq_enable_sysexit pv opBoris Ostrovsky2020-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 88c15ec90ff16880efab92b519436ee17b198477 upstream. As result of commit "x86/xen: Avoid fast syscall path for Xen PV guests", the irq_enable_sysexit pv op is not called by Xen PV guests anymore and since they were the only ones who used it we can safely remove it. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Borislav Petkov <bp@suse.de> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: david.vrabel@citrix.com Cc: konrad.wilk@oracle.com Cc: virtualization@lists.linux-foundation.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/1447970147-1733-3-git-send-email-boris.ostrovsky@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge branch 'android-4.4-p' of ↵Michael Bestas2020-05-14
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05400-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 96b09cba55905 UPSTREAM: net: socket: set sock->sk to NULL after calling proto_ops::release() Conflicts: drivers/scsi/ufs/ufshcd.c drivers/usb/gadget/composite.c drivers/usb/gadget/function/f_fs.c Change-Id: I3e79c0d20e3eb3246a50c9a1e815cdf030a4232e
| * | Merge 4.4.220 into android-4.4-pGreg Kroah-Hartman2020-04-24
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.220 bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads net: vxge: fix wrong __VA_ARGS__ usage qlcnic: Fix bad kzalloc null test i2c: st: fix missing struct parameter description irqchip/versatile-fpga: Handle chained IRQs properly selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault libata: Remove extra scsi_host_put() in ata_scsi_add_hosts() gfs2: Don't demote a glock until its revokes are written x86/boot: Use unsigned comparison for addresses locking/lockdep: Avoid recursion in lockdep_count_{for,back}ward_deps() btrfs: remove a BUG_ON() from merge_reloc_roots() btrfs: track reloc roots based on their commit root bytenr misc: rtsx: set correct pcr_ops for rts522A ASoC: fix regwmask ASoC: dapm: connect virtual mux with default value ASoC: dpcm: allow start or stop during pause for backend ASoC: topology: use name_prefix for new kcontrol usb: gadget: f_fs: Fix use after free issue as part of queue failure usb: gadget: composite: Inform controller driver of self-powered ALSA: usb-audio: Add mixer workaround for TRX40 and co ALSA: hda: Add driver blacklist ALSA: hda: Fix potential access overflow in beep helper ALSA: ice1724: Fix invalid access for enumerated ctl items ALSA: pcm: oss: Fix regression by buffer overflow fix acpi/x86: ignore unspecified bit positions in the ACPI global lock field thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n KEYS: reaching the keys quotas correctly irqchip/versatile-fpga: Apply clear-mask earlier MIPS: OCTEON: irq: Fix potential NULL pointer dereference ath9k: Handle txpower changes even when TPC is disabled signal: Extend exec_id to 64bits x86/entry/32: Add missing ASM_CLAC to general_protection entry KVM: x86: Allocate new rmap and large page tracking when moving memslot crypto: mxs-dcp - fix scatterlist linearization for hash futex: futex_wake_op, do not fail on invalid op xen-netfront: Rework the fix for Rx stall during OOM and network stress ALSA: hda: Initialize power_state field properly Btrfs: incremental send, fix invalid memory access IB/ipoib: Fix lockdep issue found on ipoib_ib_dev_heavy_flush scsi: zfcp: fix missing erp_lock in port recovery trigger for point-to-point arm64: armv8_deprecated: Fix undef_hook mask for thumb setend ext4: fix a data race at inode->i_blocks ocfs2: no need try to truncate file beyond i_size s390/diag: fix display of diagnose call statistics Input: i8042 - add Acer Aspire 5738z to nomux list kmod: make request_module() return an error when autoloading is disabled hfsplus: fix crash and filesystem corruption when deleting files libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set powerpc/64/tm: Don't let userspace set regs->trap via sigreturn Btrfs: fix crash during unmount due to race with delayed inode workers drm/dp_mst: Fix clearing payload state on topology disable ipmi: fix hung processes in __get_guid() powerpc/fsl_booke: Avoid creating duplicate tlb1 entry misc: echo: Remove unnecessary parentheses and simplify check for zero mfd: dln2: Fix sanity checking for endpoints net: ipv4: devinet: Fix crash when add/del multicast IP with autojoin net: ipv6: do not consider routes via gateways for anycast address check scsi: ufs: Fix ufshcd_hold() caused scheduling while atomic jbd2: improve comments about freeing data buffers whose page mapping is NULL ext4: fix incorrect group count in ext4_fill_super error message ext4: fix incorrect inodes per group in error message ASoC: Intel: mrfld: fix incorrect check on p->sink ASoC: Intel: mrfld: return error codes when an error occurs ALSA: usb-audio: Don't override ignore_ctl_error value from the map mac80211_hwsim: Use kstrndup() in place of kasprintf() ext4: do not zeroout extents beyond i_disksize dm flakey: check for null arg_name in parse_features() kvm: x86: Host feature SSBD doesn't imply guest feature SPEC_CTRL_SSBD x86/mitigations: Clear CPU buffers on the SYSCALL fast path tracing: Fix the race between registering 'snapshot' event trigger and triggering 'snapshot' operation scsi: sg: add sg_remove_request in sg_common_write ALSA: hda: Don't release card at firmware loading error video: fbdev: sis: Remove unnecessary parentheses and commented code drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problem wil6210: increase firmware ready timeout wil6210: fix temperature debugfs scsi: ufs: ufs-qcom: remove broken hci version quirk wil6210: rate limit wil_rx_refill error rtc: pm8xxx: Fix issue in RTC write path soc: qcom: smem: Use le32_to_cpu for comparison of: fix missing kobject init for !SYSFS && OF_DYNAMIC config of: unittest: kmemleak in of_unittest_platform_populate() clk: at91: usb: continue if clk_hw_round_rate() return zero clk: tegra: Fix Tegra PMC clock out parents NFS: direct.c: Fix memory leak of dreq when nfs_get_lock_context fails ext4: do not commit super on read-only bdev percpu_counter: fix a data race at vm_committed_as compiler.h: fix error in BUILD_BUG_ON() reporting NFS: Fix memory leaks in nfs_pageio_stop_mirroring() ext2: fix empty body warnings when -Wextra is used iommu/amd: Fix the configuration of GCR3 table root pointer fbdev: potential information leak in do_fb_ioctl() tty: evh_bytechan: Fix out of bounds accesses locktorture: Print ratio of acquisitions, not failures mtd: lpddr: Fix a double free in probe() mtd: phram: fix a double free issue in error path x86/CPU: Add native CPUID variants returning a single datum x86/microcode/intel: replace sync_core() with native_cpuid_reg(eax) x86/vdso: Fix lsl operand order Linux 4.4.220 Change-Id: Ic931642c95ad95eb2755c3c20f6802e04283e68b Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| | * x86/mitigations: Clear CPU buffers on the SYSCALL fast pathBorislav Petkov2020-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fast SYSCALL exit path returns with SYSRET to userspace after verifying that there's no pending work. MDS mitigation mandates that CPU buffers must be cleared on transition from kernel to userspace so do that here too. Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| | * x86/entry/32: Add missing ASM_CLAC to general_protection entryThomas Gleixner2020-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 3d51507f29f2153a658df4a0674ec5b592b62085 upstream. All exception entry points must have ASM_CLAC right at the beginning. The general_protection entry is missing one. Fixes: e59d1b0a2419 ("x86-32, smap: Add STAC/CLAC instructions to 32-bit kernel entry") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Reviewed-by: Andy Lutomirski <luto@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20200225220216.219537887@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge branch 'android-4.4-p' of ↵Michael Bestas2020-03-08
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998 This brings LA.UM.8.4.r1-05200-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 4db1ebdd40ec0 FROMLIST: HID: nintendo: add nintendo switch controller driver Conflicts: arch/arm64/boot/Makefile arch/arm64/kernel/psci.c arch/x86/configs/x86_64_cuttlefish_defconfig drivers/md/dm.c drivers/of/Kconfig drivers/thermal/thermal_core.c fs/proc/meminfo.c kernel/locking/spinlock_debug.c kernel/time/hrtimer.c net/wireless/util.c Change-Id: I5b5163497b7c6ab8487ffbb2d036e4cda01ed670
| * | Merge 4.4.215 into android-4.4-pGreg Kroah-Hartman2020-02-28
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.215 x86/vdso: Use RDPID in preference to LSL when available KVM: x86: emulate RDPID ALSA: hda: Use scnprintf() for printing texts for sysfs/procfs ecryptfs: fix a memory leak bug in parse_tag_1_packet() ecryptfs: fix a memory leak bug in ecryptfs_init_messaging() ALSA: usb-audio: Apply sample rate quirk for Audioengine D1 ubifs: Fix deadlock in concurrent bulk-read and writepage ext4: fix checksum errors with indexed dirs Btrfs: fix race between using extent maps and merging them btrfs: log message when rw remount is attempted with unclean tree-log padata: Remove broken queue flushing s390/time: Fix clk type in get_tod_clock hwmon: (pmbus/ltc2978) Fix PMBus polling of MFR_COMMON definitions. jbd2: move the clearing of b_modified flag to the journal_unmap_buffer() jbd2: do not clear the BH_Mapped flag when forgetting a metadata buffer btrfs: print message when tree-log replay starts scsi: qla2xxx: fix a potential NULL pointer dereference Revert "KVM: VMX: Add non-canonical check on writes to RTIT address MSRs" drm/gma500: Fixup fbdev stolen size usage evaluation brcmfmac: Fix use after free in brcmf_sdio_readframes() gianfar: Fix TX timestamping with a stacked DSA driver pinctrl: sh-pfc: sh7264: Fix CAN function GPIOs media: i2c: mt9v032: fix enum mbus codes and frame sizes media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run() efi/x86: Map the entire EFI vendor string before copying it MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init() uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol() usb: gadget: udc: fix possible sleep-in-atomic-context bugs in gr_probe() nfs: NFS_SWAP should depend on SWAP jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal tracing: Fix very unlikely race of registering two stat tracers ext4, jbd2: ensure panic when aborting with zero errno kconfig: fix broken dependency in randconfig-generated .config clk: qcom: rcg2: Don't crash if our parent can't be found; return an error drm/amdgpu: remove 4 set but not used variable in amdgpu_atombios_get_connector_info_from_object_table regulator: rk808: Lower log level on optional GPIOs being not available NFC: port100: Convert cpu_to_le16(le16_to_cpu(E1) + E2) to use le16_add_cpu(). reiserfs: Fix spurious unlock in reiserfs_fill_super() error handling ALSA: usx2y: Adjust indentation in snd_usX2Y_hwdep_dsp_status b43legacy: Fix -Wcast-function-type ipw2x00: Fix -Wcast-function-type iwlegacy: Fix -Wcast-function-type rtlwifi: rtl_pci: Fix -Wcast-function-type orinoco: avoid assertion in case of NULL pointer ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1 scsi: aic7xxx: Adjust indentation in ahc_find_syncrate ARM: dts: r8a7779: Add device node for ARM global timer x86/vdso: Provide missing include file pinctrl: sh-pfc: sh7269: Fix CAN function GPIOs ALSA: sh: Fix compile warning wrt const tools lib api fs: Fix gcc9 stringop-truncation compilation error usbip: Fix unsafe unaligned pointer usage soc/tegra: fuse: Correct straps' address for older Tegra124 device trees rcu: Use WRITE_ONCE() for assignments to ->pprev for hlist_nulls Input: edt-ft5x06 - work around first register access error wan: ixp4xx_hss: fix compile-testing on 64-bit ASoC: atmel: fix build error with CONFIG_SND_ATMEL_SOC_DMA=m PCI: Don't disable bridge BARs when assigning bus resources driver core: Print device when resources present in really_probe() drm/nouveau: Fix copy-paste error in nouveau_fence_wait_uevent_handler drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add iommu/arm-smmu-v3: Use WRITE_ONCE() when changing validity of an STE scsi: iscsi: Don't destroy session if there are outstanding connections cmd64x: potential buffer overflow in cmd64x_program_timings() ide: serverworks: potential overflow in svwks_set_pio_mode() remoteproc: Initialize rproc_class before use s390/ftrace: generate traced function stack frame ALSA: hda - Add docking station support for Lenovo Thinkpad T420s jbd2: switch to use jbd2_journal_abort() when failed to submit the commit record ARM: 8951/1: Fix Kexec compilation issue. hostap: Adjust indentation in prism2_hostapd_add_sta iwlegacy: ensure loop counter addr does not wrap and cause an infinite loop drm/nouveau/disp/nv50-: prevent oops when no channel method map provided trigger_next should increase position index radeon: insert 10ms sleep in dce5_crtc_load_lut ocfs2: fix a NULL pointer dereference when call ocfs2_update_inode_fsync_trans() lib/scatterlist.c: adjust indentation in __sg_alloc_table reiserfs: prevent NULL pointer dereference in reiserfs_insert_item() bcache: explicity type cast in bset_bkey_last() irqchip/gic-v3-its: Reference to its_invall_cmd descriptor when building INVALL microblaze: Prevent the overflow of the start brd: check and limit max_part par selinux: ensure we cleanup the internal AVC counters on error in avc_update() enic: prevent waking up stopped tx queues over watchdog reset floppy: check FDC index for errors before assigning it staging: android: ashmem: Disallow ashmem memory from being remapped staging: vt6656: fix sign of rx_dbm to bb_pre_ed_rssi. usb: uas: fix a plug & unplug racing USB: Fix novation SourceControl XL after suspend USB: hub: Don't record a connect-change event during reset-resume staging: rtl8188eu: Fix potential security hole staging: rtl8188eu: Fix potential overuse of kernel memory x86/mce/amd: Fix kobject lifetime tty: serial: imx: setup the correct sg entry for tx dma Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" xhci: apply XHCI_PME_STUCK_QUIRK to Intel Comet Lake platforms VT_RESIZEX: get rid of field-by-field copyin vt: vt_ioctl: fix race in VT_RESIZEX KVM: nVMX: Don't emulate instructions in guest mode netfilter: xt_bpf: add overflow checks ext4: fix a data race in EXT4_I(inode)->i_disksize ext4: add cond_resched() to __ext4_find_entry() KVM: nVMX: Refactor IO bitmap checks into helper function KVM: nVMX: Check IO instruction VM-exit conditions KVM: apic: avoid calculating pending eoi from an uninitialized val Btrfs: fix btrfs_wait_ordered_range() so that it waits for all ordered extents scsi: Revert "RDMA/isert: Fix a recently introduced regression related to logout" scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" ecryptfs: replace BUG_ON with error handling code ALSA: rawmidi: Avoid bit fields for state flags ALSA: seq: Avoid concurrent access to queue flags ALSA: seq: Fix concurrent access to queue current tick/time xen: Enable interrupts when calling _cond_resched() Linux 4.4.215 Change-Id: I32c4136741a79ab940022d590d5ace780290acbb Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| | * x86/vdso: Provide missing include fileValdis Klētnieks2020-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit bff47c2302cc249bcd550b17067f8dddbd4b6f77 ] When building with C=1, sparse issues a warning: CHECK arch/x86/entry/vdso/vdso32-setup.c arch/x86/entry/vdso/vdso32-setup.c:28:28: warning: symbol 'vdso32_enabled' was not declared. Should it be static? Provide the missing header file. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/36224.1575599767@turing-police Signed-off-by: Sasha Levin <sashal@kernel.org>
| * | Merge 4.4.190 into android-4.4-pGreg Kroah-Hartman2019-08-25
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.190 usb: iowarrior: fix deadlock on disconnect sound: fix a memory leak bug x86/mm: Check for pfn instead of page in vmalloc_sync_one() x86/mm: Sync also unmappings in vmalloc_sync_all() mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() perf db-export: Fix thread__exec_comm() usb: yurex: Fix use-after-free in yurex_delete can: peak_usb: fix potential double kfree_skb() netfilter: nfnetlink: avoid deadlock due to synchronous request_module iscsi_ibft: make ISCSI_IBFT dependson ACPI instead of ISCSI_IBFT_FIND mac80211: don't warn about CW params when not using them hwmon: (nct6775) Fix register address and added missed tolerance for nct6106 cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init() s390/qdio: add sanity checks to the fast-requeue path ALSA: compress: Fix regression on compressed capture streams ALSA: compress: Prevent bypasses of set_params ALSA: compress: Be more restrictive about when a drain is allowed perf probe: Avoid calling freeing routine multiple times for same pointer ARM: davinci: fix sleep.S build error on ARMv4 scsi: megaraid_sas: fix panic on loading firmware crashdump scsi: ibmvfc: fix WARN_ON during event pool release tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop perf/core: Fix creating kernel counters for PMUs that override event->cpu can: peak_usb: pcan_usb_pro: Fix info-leaks to USB devices can: peak_usb: pcan_usb_fd: Fix info-leaks to USB devices hwmon: (nct7802) Fix wrong detection of in4 presence ALSA: firewire: fix a memory leak bug mac80211: don't WARN on short WMM parameters from AP SMB3: Fix deadlock in validate negotiate hits reconnect smb3: send CAP_DFS capability during session setup mwifiex: fix 802.11n/WPA detection scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA sh: kernel: hw_breakpoint: Fix missing break in switch statement usb: gadget: f_midi: fail if set_alt fails to allocate requests USB: gadget: f_midi: fixing a possible double-free in f_midi mm/memcontrol.c: fix use after free in mem_cgroup_iter() ALSA: hda - Fix a memory leak bug HID: holtek: test for sanity of intfdata HID: hiddev: avoid opening a disconnected device HID: hiddev: do cleanup in failure of opening a device Input: kbtab - sanity check for endpoint type Input: iforce - add sanity checks net: usb: pegasus: fix improper read if get_registers() fail xen/pciback: remove set but not used variable 'old_state' irqchip/irq-imx-gpcv2: Forward irq type to parent perf header: Fix divide by zero error if f_header.attr_size==0 perf header: Fix use of unitialized value warning libata: zpodd: Fix small read overflow in zpodd_get_mech_type() scsi: hpsa: correct scsi command status issue after reset ata: libahci: do not complain in case of deferred probe kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules IB/core: Add mitigation for Spectre V1 ocfs2: remove set but not used variable 'last_hash' asm-generic: fix -Wtype-limits compiler warnings staging: comedi: dt3000: Fix signed integer overflow 'divider * base' staging: comedi: dt3000: Fix rounding up of timer divisor USB: core: Fix races in character device registration and deregistraion usb: cdc-acm: make sure a refcount is taken early enough USB: serial: option: add D-Link DWM-222 device ID USB: serial: option: Add support for ZTE MF871A USB: serial: option: add the BroadMobi BM818 card USB: serial: option: Add Motorola modem UARTs Backport minimal compiler_attributes.h to support GCC 9 include/linux/module.h: copy __init/__exit attrs to init/cleanup_module arm64: compat: Allow single-byte watchpoints on all addresses Input: psmouse - fix build error of multiple definition asm-generic: default BUG_ON(x) to if(x)BUG() scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure RDMA: Directly cast the sockaddr union to sockaddr IB/mlx5: Make coding style more consistent x86/vdso: Remove direct HPET access through the vDSO iommu/amd: Move iommu_init_pci() to .init section x86/boot: Disable the address-of-packed-member compiler warning net/packet: fix race in tpacket_snd() xen/netback: Reset nr_frags before freeing skb net/mlx5e: Only support tx/rx pause setting for port owner sctp: fix the transport error_count check bonding: Add vlan tx offload to hw_enc_features Linux 4.4.190 Change-Id: Ic4094fbac2f9b8f6d4a9b4397e82471f40424332 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | Merge 4.4.189 into android-4.4-pGreg Kroah-Hartman2019-08-11
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.189 arm64: cpufeature: Fix CTR_EL0 field definitions arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} netfilter: nfnetlink_acct: validate NFACCT_QUOTA parameter HID: Add quirk for HP X1200 PIXART OEM mouse tcp: be more careful in tcp_fragment() atm: iphase: Fix Spectre v1 vulnerability net: bridge: delete local fdb on device init failure net: fix ifindex collision during namespace removal tipc: compat: allow tipc commands without arguments net: sched: Fix a possible null-pointer dereference in dequeue_func() net/mlx5: Use reversed order when unregister devices bnx2x: Disable multi-cos feature. compat_ioctl: pppoe: fix PPPOEIOCSFWD handling block: blk_init_allocated_queue() set q->fq as NULL in the fail case spi: bcm2835: Fix 3-wire mode if DMA is enabled x86: cpufeatures: Sort feature word 7 x86/entry/64: Fix context tracking state warning when load_gs_index fails x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations x86/speculation: Enable Spectre v1 swapgs mitigations x86/entry/64: Use JMP instead of JMPQ x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS Linux 4.4.189 Change-Id: Ie53dff8ad9602a66a8c52c3fcbba354c1b7d06e5 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * \ \ Merge 4.4.180 into android-4.4-pGreg Kroah-Hartman2019-05-16
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.180 kbuild: simplify ld-option implementation KVM: fail KVM_SET_VCPU_EVENTS with invalid exception number cifs: do not attempt cifs operation on smb2+ rename error MIPS: scall64-o32: Fix indirect syscall number load trace: Fix preempt_enable_no_resched() abuse sched/numa: Fix a possible divide-by-zero ceph: ensure d_name stability in ceph_dentry_hash() ceph: fix ci->i_head_snapc leak nfsd: Don't release the callback slot unless it was actually held sunrpc: don't mark uninitialised items as VALID. USB: Add new USB LPM helpers USB: Consolidate LPM checks to avoid enabling LPM twice powerpc/xmon: Add RFI flush related fields to paca dump powerpc/64s: Improve RFI L1-D cache flush fallback powerpc/pseries: Support firmware disable of RFI flush powerpc/powernv: Support firmware disable of RFI flush powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again powerpc/rfi-flush: Always enable fallback flush on pseries powerpc/rfi-flush: Differentiate enabled and patched flush types powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration powerpc: Add security feature flags for Spectre/Meltdown powerpc/pseries: Set or clear security feature flags powerpc/powernv: Set or clear security feature flags powerpc/64s: Move cpu_show_meltdown() powerpc/64s: Enhance the information in cpu_show_meltdown() powerpc/powernv: Use the security flags in pnv_setup_rfi_flush() powerpc/pseries: Use the security flags in pseries_setup_rfi_flush() powerpc/64s: Wire up cpu_show_spectre_v1() powerpc/64s: Wire up cpu_show_spectre_v2() powerpc/pseries: Fix clearing of security feature flags powerpc: Move default security feature flags powerpc/pseries: Restore default security feature flags on setup powerpc/64s: Fix section mismatch warnings from setup_rfi_flush() powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit powerpc/64s: Add barrier_nospec powerpc/64s: Add support for ori barrier_nospec patching powerpc/64s: Patch barrier_nospec in modules powerpc/64s: Enable barrier_nospec based on firmware settings powerpc/64: Use barrier_nospec in syscall entry powerpc: Use barrier_nospec in copy_from_user() powerpc/64s: Enhance the information in cpu_show_spectre_v1() powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 powerpc/64: Disable the speculation barrier from the command line powerpc/64: Make stf barrier PPC_BOOK3S_64 specific. powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC powerpc/64: Call setup_barrier_nospec() from setup_arch() powerpc/64: Make meltdown reporting Book3S 64 specific powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E powerpc/asm: Add a patch_site macro & helpers for patching instructions powerpc/64s: Add new security feature flags for count cache flush powerpc/64s: Add support for software count cache flush powerpc/pseries: Query hypervisor for count cache flush settings powerpc/powernv: Query firmware for count cache flush settings powerpc: Avoid code patching freed init sections powerpc/fsl: Add infrastructure to fixup branch predictor flush powerpc/fsl: Add macro to flush the branch predictor powerpc/fsl: Fix spectre_v2 mitigations reporting powerpc/fsl: Add nospectre_v2 command line argument powerpc/fsl: Flush the branch predictor at each kernel entry (64bit) powerpc/fsl: Update Spectre v2 reporting powerpc/security: Fix spectre_v2 reporting powerpc/fsl: Fix the flush of branch predictor. tipc: handle the err returned from cmd header function slip: make slhc_free() silently accept an error pointer intel_th: gth: Fix an off-by-one in output unassigning fs/proc/proc_sysctl.c: Fix a NULL pointer dereference NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family. netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON tipc: check bearer name with right length in tipc_nl_compat_bearer_enable tipc: check link name with right length in tipc_nl_compat_link_set bpf: reject wrong sized filters earlier Revert "block/loop: Use global lock for ioctl() operation." ipv4: add sanity checks in ipv4_link_failure() team: fix possible recursive locking when add slaves net: stmmac: move stmmac_check_ether_addr() to driver probe ipv4: set the tcp_min_rtt_wlen range from 0 to one day powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used powerpc/fsl: Flush branch predictor when entering KVM powerpc/fsl: Emulate SPRN_BUCSR register powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit) powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup' powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg Documentation: Add nospectre_v1 parameter usbnet: ipheth: prevent TX queue timeouts when device not ready usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set qlcnic: Avoid potential NULL pointer dereference netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() usb: gadget: net2280: Fix overrun of OUT messages usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2272: Fix net2272_dequeue() ARM: dts: pfla02: increase phy reset duration net: ks8851: Dequeue RX packets explicitly net: ks8851: Reassert reset pin if chip ID check fails net: ks8851: Delay requesting IRQ until opened net: ks8851: Set initial carrier state to down net: xilinx: fix possible object reference leak net: ibm: fix possible object reference leak net: ethernet: ti: fix possible object reference leak scsi: qla4xxx: fix a potential NULL pointer dereference usb: u132-hcd: fix resource leak ceph: fix use-after-free on symlink traversal scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN libata: fix using DMA buffers on stack kconfig/[mn]conf: handle backspace (^H) key vfio/type1: Limit DMA mappings per container ALSA: line6: use dynamic buffers ipv4: ip_do_fragment: Preserve skb_iif during fragmentation ipv6/flowlabel: wait rcu grace period before put_pid() ipv6: invert flowlabel sharing check in process and user mode bnxt_en: Improve multicast address setup logic. packet: validate msg_namelen in send directly USB: yurex: Fix protection fault after device removal USB: w1 ds2490: Fix bug caused by improper use of altsetting array USB: core: Fix unterminated string returned by usb_string() USB: core: Fix bug caused by duplicate interface PM usage counter HID: debug: fix race condition with between rdesc_show() and device removal rtc: sh: Fix invalid alarm warning for non-enabled alarm igb: Fix WARN_ONCE on runtime suspend bonding: show full hw address in sysfs for slave entries jffs2: fix use-after-free on symlink traversal debugfs: fix use-after-free on symlink traversal rtc: da9063: set uie_unsupported when relevant vfio/pci: use correct format characters scsi: storvsc: Fix calculation of sub-channel count net: hns: Use NAPI_POLL_WEIGHT for hns driver net: hns: Fix WARNING when remove HNS driver with SMMU enabled hugetlbfs: fix memory leak for resv_map xsysace: Fix error handling in ace_setup ARM: orion: don't use using 64-bit DMA masks ARM: iop: don't use using 64-bit DMA masks usb: usbip: fix isoc packet num validation in get_pipe staging: iio: adt7316: allow adt751x to use internal vref for all dacs staging: iio: adt7316: fix the dac read calculation staging: iio: adt7316: fix the dac write calculation Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ selinux: never allow relabeling on context mounts x86/mce: Improve error message when kernel cannot recover, p2 media: v4l2: i2c: ov7670: Fix PLL bypass register values scsi: libsas: fix a race condition when smp task timeout ASoC:soc-pcm:fix a codec fixup issue in TDM case ASoC: cs4270: Set auto-increment bit for register writes ASoC: tlv320aic32x4: Fix Common Pins perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS scsi: csiostor: fix missing data copy in csio_scsi_err_handler() iommu/amd: Set exclusion range correctly genirq: Prevent use-after-free and work list corruption usb: dwc3: Fix default lpm_nyet_threshold value scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines Bluetooth: hidp: fix buffer overflow Bluetooth: Align minimum encryption key size for LE and BR/EDR connections UAS: fix alignment of scatter/gather segments ipv6: fix a potential deadlock in do_ipv6_setsockopt() ASoC: Intel: avoid Oops if DMA setup fails timer/debug: Change /proc/timer_stats from 0644 to 0600 netfilter: compat: initialize all fields in xt_init platform/x86: sony-laptop: Fix unintentional fall-through iio: adc: xilinx: fix potential use-after-free on remove HID: input: add mapping for Expose/Overview key HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys libnvdimm/btt: Fix a kmemdup failure check s390/dasd: Fix capacity calculation for large volumes s390/3270: fix lockdep false positive on view->lock KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing tools lib traceevent: Fix missing equality check for strcmp init: initialize jump labels before command line option parsing ipvs: do not schedule icmp errors from tunnels s390: ctcm: fix ctcm_new_device error return code selftests/net: correct the return value for run_netsocktests gpu: ipu-v3: dp: fix CSC handling cw1200: fix missing unlock on error in cw1200_hw_scan() x86/vdso: Pass --eh-frame-hdr to the linker Don't jump to compute_result state from check_result state locking/static_keys: Provide DECLARE and well as DEFINE macros x86/microcode/intel: Add a helper which gives the microcode revision x86: stop exporting msr-index.h to userland bitops: avoid integer overflow in GENMASK(_ULL) x86/microcode/intel: Check microcode revision before updating sibling threads x86/MCE: Save microcode revision in machine check records x86/cpufeatures: Hide AMD-specific speculation flags x86/speculation: Support Enhanced IBRS on future CPUs x86/speculation: Simplify the CPU bug detection logic x86/bugs: Add AMD's variant of SSB_NO x86/bugs: Add AMD's SPEC_CTRL MSR usage x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation x86/microcode: Make sure boot_cpu_data.microcode is up-to-date x86/microcode: Update the new microcode revision unconditionally x86/cpu: Sanitize FAM6_ATOM naming KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled x86/mm: Use WRITE_ONCE() when setting PTEs x86/speculation: Apply IBPB more strictly to avoid cross-process data leak x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation x86/speculation: Propagate information about RSB filling mitigation to sysfs x86/speculation: Update the TIF_SSBD comment x86/speculation: Clean up spectre_v2_parse_cmdline() x86/speculation: Remove unnecessary ret variable in cpu_show_common() x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common() x86/speculation: Disable STIBP when enhanced IBRS is in use x86/speculation: Rename SSBD update functions x86/speculation: Reorganize speculation control MSRs update x86/Kconfig: Select SCHED_SMT if SMP enabled sched: Add sched_smt_active() x86/speculation: Rework SMT state change x86/speculation: Reorder the spec_v2 code x86/speculation: Mark string arrays const correctly x86/speculataion: Mark command line parser data __initdata x86/speculation: Unify conditional spectre v2 print functions x86/speculation: Add command line control for indirect branch speculation x86/speculation: Prepare for per task indirect branch speculation control x86/process: Consolidate and simplify switch_to_xtra() code x86/speculation: Avoid __switch_to_xtra() calls x86/speculation: Prepare for conditional IBPB in switch_mm() x86/speculation: Split out TIF update x86/speculation: Prepare arch_smt_update() for PRCTL mode x86/speculation: Prevent stale SPEC_CTRL msr content x86/speculation: Add prctl() control for indirect branch speculation x86/speculation: Enable prctl mode for spectre_v2_user x86/speculation: Add seccomp Spectre v2 user space protection mode x86/speculation: Provide IBPB always command line options kvm: x86: Report STIBP on GET_SUPPORTED_CPUID x86/msr-index: Cleanup bit defines x86/speculation: Consolidate CPU whitelists x86/speculation/mds: Add basic bug infrastructure for MDS x86/speculation/mds: Add BUG_MSBDS_ONLY x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests x86/speculation/mds: Add mds_clear_cpu_buffers() x86/speculation/mds: Clear CPU buffers on exit to user x86/speculation/mds: Conditionally clear CPU buffers on idle entry x86/speculation/mds: Add mitigation control for MDS x86/speculation/l1tf: Document l1tf in sysfs x86/speculation/mds: Add sysfs reporting for MDS x86/speculation/mds: Add mitigation mode VMWERV Documentation: Move L1TF to separate directory Documentation: Add MDS vulnerability documentation x86/cpu/bugs: Use __initconst for 'const' init data x86/speculation: Move arch_smt_update() call to after mitigation decisions x86/speculation/mds: Add SMT warning message x86/speculation/mds: Fix comment x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off cpu/speculation: Add 'mitigations=' cmdline option x86/speculation: Support 'mitigations=' cmdline option x86/speculation/mds: Add 'mitigations=' support for MDS x86/mds: Add MDSUM variant to the MDS documentation Documentation: Correct the possible MDS sysfs values x86/speculation/mds: Fix documentation typo x86/bugs: Change L1TF mitigation string to match upstream USB: serial: use variable for status USB: serial: fix unthrottle races powerpc/64s: Include cpu header bridge: Fix error path for kobject_init_and_add() net: ucc_geth - fix Oops when changing number of buffers in the ring packet: Fix error path in packet_init vlan: disable SIOCSHWTSTAMP in container vrf: sit mtu should not be updated when vrf netdev is the link ipv4: Fix raw socket lookup for local traffic bonding: fix arp_validate toggling in active-backup mode drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl powerpc/booke64: set RI in default MSR powerpc/lib: fix book3s/32 boot failure due to code patching Linux 4.4.180 Change-Id: I72f6c596cc992689d95abc8b5d1303d6ec22b051 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * \ \ \ Merge 4.4.179 into android-4.4-pGreg Kroah-Hartman2019-04-30
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.179 arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals arm64: debug: Ensure debug handlers check triggering exception level ext4: cleanup bh release code in ext4_ind_remove_space() lib/int_sqrt: optimize initial value compute tty/serial: atmel: Add is_half_duplex helper mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA Bluetooth: Fix decrementing reference count twice in releasing socket tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped CIFS: fix POSIX lock leak and invalid ptr deref h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux- tracing: kdb: Fix ftdump to not sleep gpio: gpio-omap: fix level interrupt idling sysctl: handle overflow for file-max enic: fix build warning without CONFIG_CPUMASK_OFFSTACK mm/cma.c: cma_declare_contiguous: correct err handling mm/page_ext.c: fix an imbalance with kmemleak mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512! mm/slab.c: kmemleak no scan alien caches ocfs2: fix a panic problem caused by o2cb_ctl f2fs: do not use mutex lock in atomic context fs/file.c: initialize init_files.resize_wait cifs: use correct format characters dm thin: add sanity checks to thin-pool and external snapshot creation cifs: Fix NULL pointer dereference of devname fs: fix guard_bio_eod to check for real EOD errors tools lib traceevent: Fix buffer overflow in arg_eval usb: chipidea: Grab the (legacy) USB PHY by phandle first scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c coresight: etm4x: Add support to enable ETMv4.2 ARM: 8840/1: use a raw_spinlock_t in unwind mmc: omap: fix the maximum timeout setting e1000e: Fix -Wformat-truncation warnings IB/mlx4: Increase the timeout for CM cache scsi: megaraid_sas: return error when create DMA pool failed perf test: Fix failure of 'evsel-tp-sched' test on s390 SoC: imx-sgtl5000: add missing put_device() media: sh_veu: Correct return type for mem2mem buffer helpers media: s5p-jpeg: Correct return type for mem2mem buffer helpers media: s5p-g2d: Correct return type for mem2mem buffer helpers media: mx2_emmaprp: Correct return type for mem2mem buffer helpers leds: lp55xx: fix null deref on firmware load failure kprobes: Prohibit probing on bsearch() ARM: 8833/1: Ensure that NEON code always compiles with Clang ALSA: PCM: check if ops are defined before suspending PCM bcache: fix input overflow to cache set sysfs file io_error_halflife bcache: fix input overflow to sequential_cutoff bcache: improve sysfs_strtoul_clamp() fbdev: fbmem: fix memory access if logo is bigger than the screen cdrom: Fix race condition in cdrom_sysctl_register ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe soc: qcom: gsbi: Fix error handling in gsbi_probe() mt7601u: bump supported EEPROM version ARM: avoid Cortex-A9 livelock on tight dmb loops tty: increase the default flip buffer limit to 2*640K media: mt9m111: set initial frame size other than 0x0 hwrng: virtio - Avoid repeated init of completion soc/tegra: fuse: Fix illegal free of IO base address hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable dmaengine: imx-dma: fix warning comparison of distinct pointer types netfilter: physdev: relax br_netfilter dependency media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting wlcore: Fix memory leak in case wl12xx_fetch_firmware failure x86/build: Mark per-CPU symbols as absolute explicitly for LLD dmaengine: tegra: avoid overflow of byte tracking drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers binfmt_elf: switch to new creds when switching to new mm kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD x86/build: Specify elf_i386 linker emulation explicitly for i386 objects x86: vdso: Use $LD instead of $CC to link x86/vdso: Drop implicit common-page-size linker flag lib/string.c: implement a basic bcmp tty: mark Siemens R3964 line discipline as BROKEN tty: ldisc: add sysctl to prevent autoloading of ldiscs ipv6: Fix dangling pointer when ipv6 fragment ipv6: sit: reset ip header pointer in ipip6_rcv net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). openvswitch: fix flow actions reallocation qmi_wwan: add Olicard 600 sctp: initialize _pad of sockaddr_in before copying to user memory tcp: Ensure DCTCP reacts to losses netns: provide pure entropy for net_hash_mix() net: ethtool: not call vzalloc for zero sized memory request ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type ALSA: seq: Fix OOB-reads from strlcpy include/linux/bitrev.h: fix constant bitrev ASoC: fsl_esai: fix channel swap issue when stream starts block: do not leak memory in bio_copy_user_iov() genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent() ARM: dts: at91: Fix typo in ISC_D0 on PC9 arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value xen: Prevent buffer overflow in privcmd ioctl sched/fair: Do not re-read ->h_load_next during hierarchical load calculation xtensa: fix return_address PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller perf/core: Restore mmap record type correctly ext4: add missing brelse() in add_new_gdb_meta_bg() ext4: report real fs size after failed resize ALSA: echoaudio: add a check for ioremap_nocache ALSA: sb8: add a check for request_region IB/mlx4: Fix race condition between catas error reset and aliasguid flows mmc: davinci: remove extraneous __init annotation ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration thermal/int340x_thermal: Add additional UUIDs thermal/int340x_thermal: fix mode setting tools/power turbostat: return the exit status of a command perf top: Fix error handling in cmd_top() perf evsel: Free evsel->counts in perf_evsel__exit() perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test() x86/hpet: Prevent potential NULL pointer dereference x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors iommu/vt-d: Check capability before disabling protected memory x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error fix incorrect error code mapping for OBJECTID_NOT_FOUND ext4: prohibit fstrim in norecovery mode rsi: improve kernel thread handling to fix kernel panic 9p: do not trust pdu content for stat item size 9p locks: add mount option for lock retry interval f2fs: fix to do sanity check with current segment number serial: uartps: console_setup() can't be placed to init section ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms ACPI / SBS: Fix GPE storm on recent MacBookPro's cifs: fallback to older infolevels on findfirst queryinfo retry crypto: sha256/arm - fix crash bug in Thumb2 build crypto: sha512/arm - fix crash bug in Thumb2 build iommu/dmar: Fix buffer overflow during PCI bus notification ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t appletalk: Fix use-after-free in atalk_proc_exit lib/div64.c: off by one in shift include/linux/swap.h: use offsetof() instead of custom __swapoffset macro tpm/tpm_crb: Avoid unaligned reads in crb_recv() ovl: fix uid/gid when creating over whiteout appletalk: Fix compile regression bonding: fix event handling for stacked bonds net: atm: Fix potential Spectre v1 vulnerabilities net: bridge: multicast: use rcu to access port list from br_multicast_start_querier net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv tcp: tcp_grow_window() needs to respect tcp_space() ipv4: recompile ip options in ipv4_link_failure ipv4: ensure rcu_read_lock() in ipv4_link_failure() crypto: crypto4xx - properly set IV after de- and encrypt modpost: file2alias: go back to simple devtable lookup modpost: file2alias: check prototype of handler tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete KVM: x86: Don't clear EFER during SMM transitions for 32-bit vCPU iio/gyro/bmg160: Use millidegrees for temperature scale iio: ad_sigma_delta: select channel when reading register iio: adc: at91: disable adc channel interrupt in timeout case io: accel: kxcjk1013: restore the range after resume. staging: comedi: vmk80xx: Fix use of uninitialized semaphore staging: comedi: vmk80xx: Fix possible double-free of ->usb_rx_buf staging: comedi: ni_usb6501: Fix use of uninitialized mutex staging: comedi: ni_usb6501: Fix possible double-free of ->usb_rx_buf ALSA: core: Fix card races between register and disconnect crypto: x86/poly1305 - fix overflow during partial reduction arm64: futex: Restore oldval initialization to work around buggy compilers x86/kprobes: Verify stack frame on kretprobe kprobes: Mark ftrace mcount handler functions nokprobe kprobes: Fix error check when reusing optimized probes mac80211: do not call driver wake_tx_queue op during reconfig Revert "kbuild: use -Oz instead of -Os when using clang" sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup device_cgroup: fix RCU imbalance in error case mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n ALSA: info: Fix racy addition/deletion of nodes Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()" kernel/sysctl.c: fix out-of-bounds access when setting file-max Linux 4.4.179 Change-Id: Ia88dbd6c37250a682098a4a8540672869c6adf42 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * \ \ \ \ Merge 4.4.166 into android-4.4-pGreg Kroah-Hartman2018-12-01
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.166 usb: core: Fix hub port connection events lost usb: xhci: fix timeout for transition from RExit to U0 MAINTAINERS: Add Sasha as a stable branch maintainer iwlwifi: mvm: support sta_statistics() even on older firmware v9fs_dir_readdir: fix double-free on p9stat_read error bfs: add sanity check at bfs_fill_super() sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer gfs2: Don't leave s_fs_info pointing to freed memory in init_sbd llc: do not use sk_eat_skb() drm/ast: change resolution may cause screen blurred drm/ast: fixed cursor may disappear sometimes can: dev: can_get_echo_skb(): factor out non sending code to __can_get_echo_skb() can: dev: __can_get_echo_skb(): replace struct can_frame by canfd_frame to access frame length can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is accessed out of bounds can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb usb: xhci: Prevent bus suspend if a port connect change or polling state is detected KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE cpufreq: imx6q: add return value check for voltage scale SUNRPC: Fix a bogus get/put in generic_key_to_expire() kdb: Use strscpy with destination buffer size powerpc/numa: Suppress "VPHN is not supported" messages tmpfs: make lseek(SEEK_DATA/SEK_HOLE) return ENXIO with a negative offset of: add helper to lookup compatible child node NFC: nfcmrvl_uart: fix OF child-node lookup net: bcmgenet: fix OF child-node lookup x86/entry: spell EBX register correctly in documentation x86/entry/64: Remove %ebx handling from error_entry/exit arm64: remove no-op -p linker flag ath10k: fix kernel panic due to race in accessing arvif list Input: xpad - remove spurious events of wireless xpad 360 controller Input: xpad - handle "present" and "gone" correctly Input: xpad - update Xbox One Force Feedback Support Input: xpad - workaround dead irq_out after suspend/ resume Input: xpad - use LED API when identifying wireless controllers Input: xpad - correct xbox one pad device name Input: xpad - remove unused function Input: xpad - add Mad Catz FightStick TE 2 VID/PID Input: xpad - prevent spurious input from wired Xbox 360 controllers Input: xpad - add more third-party controllers Input: xpad - xbox one elite controller support Input: xpad - fix rumble on Xbox One controllers with 2015 firmware Input: xpad - power off wireless 360 controllers on suspend Input: xpad - add product ID for Xbox One S pad Input: xpad - fix Xbox One rumble stopping after 2.5 secs Input: xpad - correctly sort vendor id's Input: xpad - move reporting xbox one home button to common function Input: xpad - simplify error condition in init_output Input: xpad - don't depend on endpoint order Input: xpad - fix stuck mode button on Xbox One S pad Input: xpad - restore LED state after device resume Input: xpad - support some quirky Xbox One pads Input: xpad - sort supported devices by USB ID Input: xpad - sync supported devices with xboxdrv Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth Input: xpad - sync supported devices with 360Controller Input: xpad - sync supported devices with XBCD Input: xpad - constify usb_device_id Input: xpad - fix PowerA init quirk for some gamepad models Input: xpad - validate USB endpoint type during probe Input: xpad - add support for PDP Xbox One controllers Input: xpad - add PDP device id 0x02a4 Input: xpad - fix some coding style issues Input: xpad - avoid using __set_bit() for capabilities Input: xpad - add GPD Win 2 Controller USB IDs Input: xpad - fix GPD Win 2 controller name Input: xpad - add support for Xbox1 PDP Camo series gamepad cw1200: Don't leak memory if krealloc failes mwifiex: Fix NULL pointer dereference in skb_dequeue() mwifiex: fix p2p device doesn't find in scan problem netfilter: nf_tables: fix oops when inserting an element into a verdict map scsi: ufs: fix bugs related to null pointer access and array size scsi: ufshcd: Fix race between clk scaling and ungate work scsi: ufs: fix race between clock gating and devfreq scaling work scsi: ufshcd: release resources if probe fails scsi: qla2xxx: do not queue commands when unloading iwlwifi: mvm: fix regulatory domain update when the firmware starts tty: wipe buffer. tty: wipe buffer if not echoing data usb: xhci: fix uninitialized completion when USB3 port got wrong status btrfs: Ensure btrfs_trim_fs can trim the whole filesystem sched/core: Allow __sched_setscheduler() in interrupts when PI is not used namei: allow restricted O_CREAT of FIFOs and regular files s390/mm: Check for valid vma before zapping in gmap_discard drm/ast: Remove existing framebuffers before loading driver Linux 4.4.166 Change-Id: I27e4a45948cb7b5f9b6c44756dab9f56add70a43 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * \ \ \ \ \ Merge 4.4.161 into android-4.4-pGreg Kroah-Hartman2018-10-13
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.161 mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly fbdev/omapfb: fix omapfb_memory_read infoleak x86/vdso: Fix asm constraints on vDSO syscall fallbacks x86/vdso: Fix vDSO syscall fallback asm constraint regression PCI: Reprogram bridge prefetch registers on resume mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys PM / core: Clear the direct_complete flag on errors dm cache: fix resize crash if user doesn't reload cache table xhci: Add missing CAS workaround for Intel Sunrise Point xHCI USB: serial: simple: add Motorola Tetra MTP6550 id of: unittest: Disable interrupt node tests for old world MAC systems ext4: always verify the magic number in xattr blocks cgroup: Fix deadlock in cpu hotplug path ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait powerpc/fadump: Return error when fadump registration fails ARC: clone syscall to setp r25 as thread pointer ucma: fix a use-after-free in ucma_resolve_ip() ubifs: Check for name being NULL while mounting tcp: increment sk_drops for dropped rx packets tcp: use an RB tree for ooo receive queue tcp: fix a stale ooo_last_skb after a replace tcp: free batches of packets in tcp_prune_ofo_queue() tcp: call tcp_drop() from tcp_data_queue_ofo() tcp: add tcp_ooo_try_coalesce() helper ath10k: fix scan crash due to incorrect length calculation ebtables: arpreply: Add the standard target sanity check Linux 4.4.161 Change-Id: I03f9c0553ff7b197bfd896e257d5f3e1de228ed7 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * \ \ \ \ \ \ Merge 4.4.160 into android-4.4-pGreg Kroah-Hartman2018-10-10
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.160 crypto: skcipher - Fix -Wstringop-truncation warnings tsl2550: fix lux1_input error in low light vmci: type promotion bug in qp_host_get_user_memory() x86/numa_emulation: Fix emulated-to-physical node mapping staging: rts5208: fix missing error check on call to rtsx_write_register uwb: hwa-rc: fix memory leak at probe power: vexpress: fix corruption in notifier registration Bluetooth: Add a new Realtek 8723DE ID 0bda:b009 USB: serial: kobil_sct: fix modem-status error handling 6lowpan: iphc: reset mac_header after decompress to fix panic md-cluster: clear another node's suspend_area after the copy is finished media: exynos4-is: Prevent NULL pointer dereference in __isp_video_try_fmt() powerpc/kdump: Handle crashkernel memory reservation failure media: fsl-viu: fix error handling in viu_of_probe() x86/tsc: Add missing header to tsc_msr.c x86/entry/64: Add two more instruction suffixes scsi: target/iscsi: Make iscsit_ta_authentication() respect the output buffer size scsi: klist: Make it safe to use klists in atomic context scsi: ibmvscsi: Improve strings handling usb: wusbcore: security: cast sizeof to int for comparison powerpc/powernv/ioda2: Reduce upper limit for DMA window size alarmtimer: Prevent overflow for relative nanosleep s390/extmem: fix gcc 8 stringop-overflow warning ALSA: snd-aoa: add of_node_put() in error path media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power media: soc_camera: ov772x: correct setting of banding filter media: omap3isp: zero-initialize the isp cam_xclk{a,b} initial data staging: android: ashmem: Fix mmap size validation drivers/tty: add error handling for pcmcia_loop_config media: tm6000: add error handling for dvb_register_adapter ALSA: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge ath10k: protect ath10k_htt_rx_ring_free with rx_ring.lock rndis_wlan: potential buffer overflow in rndis_wlan_auth_indication() wlcore: Add missing PM call for wlcore_cmd_wait_for_event_or_timeout() ARM: mvebu: declare asm symbols as character arrays in pmsu.c HID: hid-ntrig: add error handling for sysfs_create_group scsi: bnx2i: add error handling for ioremap_nocache EDAC, i7core: Fix memleaks and use-after-free on probe and remove ASoC: dapm: Fix potential DAI widget pointer deref when linking DAIs module: exclude SHN_UNDEF symbols from kallsyms api nfsd: fix corrupted reply to badly ordered compound ARM: dts: dra7: fix DCAN node addresses floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl serial: cpm_uart: return immediately from console poll spi: tegra20-slink: explicitly enable/disable clock spi: sh-msiof: Fix invalid SPI use during system suspend spi: sh-msiof: Fix handling of write value for SISTR register spi: rspi: Fix invalid SPI use during system suspend spi: rspi: Fix interrupted DMA transfers USB: fix error handling in usb_driver_claim_interface() USB: handle NULL config in usb_find_alt_setting() slub: make ->cpu_partial unsigned int media: uvcvideo: Support realtek's UVC 1.5 device USB: usbdevfs: sanitize flags more USB: usbdevfs: restore warning for nonsensical flags Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()" USB: remove LPM management from usb_driver_claim_interface() Input: elantech - enable middle button of touchpad on ThinkPad P72 IB/srp: Avoid that sg_reset -d ${srp_device} triggers an infinite loop scsi: target: iscsi: Use bin2hex instead of a re-implementation serial: imx: restore handshaking irq for imx1 arm64: KVM: Tighten guest core register access from userspace ext4: never move the system.data xattr out of the inode body thermal: of-thermal: disable passive polling when thermal zone is disabled net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES e1000: check on netif_running() before calling e1000_up() e1000: ensure to free old tx/rx rings in set_ringparam() hwmon: (ina2xx) fix sysfs shunt resistor read access hwmon: (adt7475) Make adt7475_read_word() return errors i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus arm64: cpufeature: Track 32bit EL0 support arm64: KVM: Sanitize PSTATE.M when being set from userspace media: v4l: event: Prevent freeing event subscriptions while accessed KVM: PPC: Book3S HV: Don't truncate HPTE index in xlate function mac80211: correct use of IEEE80211_VHT_CAP_RXSTBC_X mac80211_hwsim: correct use of IEEE80211_VHT_CAP_RXSTBC_X gpio: adp5588: Fix sleep-in-atomic-context bug mac80211: mesh: fix HWMP sequence numbering to follow standard cfg80211: nl80211_update_ft_ies() to validate NL80211_ATTR_IE RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0 i2c: uniphier: issue STOP only for last message or I2C_M_STOP i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP net: cadence: Fix a sleep-in-atomic-context bug in macb_halt_tx() fs/cifs: don't translate SFM_SLASH (U+F026) to backslash cfg80211: fix a type issue in ieee80211_chandef_to_operating_class() mac80211: fix a race between restart and CSA flows mac80211: Fix station bandwidth setting after channel switch mac80211: shorten the IBSS debug messages tools/vm/slabinfo.c: fix sign-compare warning tools/vm/page-types.c: fix "defined but not used" warning mm: madvise(MADV_DODUMP): allow hugetlbfs pages usb: gadget: fotg210-udc: Fix memory leak of fotg210->ep[i] perf probe powerpc: Ignore SyS symbols irrespective of endianness RDMA/ucma: check fd type in ucma_migrate_id() USB: yurex: Check for truncation in yurex_read() drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS fs/cifs: suppress a string overflow warning dm thin metadata: try to avoid ever aborting transactions arch/hexagon: fix kernel/dma.c build warning hexagon: modify ffs() and fls() to return int arm64: jump_label.h: use asm_volatile_goto macro instead of "asm goto" r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED s390/qeth: don't dump past end of unknown HW header cifs: read overflow in is_valid_oplock_break() xen/manage: don't complain about an empty value in control/sysrq node xen: avoid crash in disable_hotplug_cpu xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage smb2: fix missing files in root share directory listing ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 crypto: mxs-dcp - Fix wait logic on chan threads proc: restrict kernel stack dumps to root ocfs2: fix locking for res->tracking and dlm->tracking_list dm thin metadata: fix __udivdi3 undefined on 32-bit Linux 4.4.160 Change-Id: I38a5feb4700b1b5947ff469b28b0894968750172 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * \ \ \ \ \ \ \ Merge 4.4.144 into android-4.4-pGreg Kroah-Hartman2018-07-31
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.144 KVM/Eventfd: Avoid crash when assign and deassign specific eventfd in parallel. x86/MCE: Remove min interval polling limitation fat: fix memory allocation failure handling of match_strdup() ALSA: rawmidi: Change resized buffers atomically ARC: Fix CONFIG_SWAP ARC: mm: allow mprotect to make stack mappings executable mm: memcg: fix use after free in mem_cgroup_iter() ipv4: Return EINVAL when ping_group_range sysctl doesn't map to user ns ipv6: fix useless rol32 call on hash lib/rhashtable: consider param->min_size when setting initial table size net/ipv4: Set oif in fib_compute_spec_dst net: phy: fix flag masking in __set_phy_supported ptp: fix missing break in switch tg3: Add higher cpu clock for 5762. net: Don't copy pfmemalloc flag in __copy_skb_header() skbuff: Unconditionally copy pfmemalloc in __skb_clone() xhci: Fix perceived dead host due to runtime suspend race with event handler x86/paravirt: Make native_save_fl() extern inline x86/cpufeatures: Add CPUID_7_EDX CPUID leaf x86/cpufeatures: Add Intel feature bits for Speculation Control x86/cpufeatures: Add AMD feature bits for Speculation Control x86/msr: Add definitions for new speculation control MSRs x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support x86/cpufeatures: Clean up Spectre v2 related CPUID flags x86/cpuid: Fix up "virtual" IBRS/IBPB/STIBP feature bits on Intel x86/pti: Mark constant arrays as __initconst x86/asm/entry/32: Simplify pushes of zeroed pt_regs->REGs x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface x86/speculation: Update Speculation Control microcode blacklist x86/speculation: Correct Speculation Control microcode blacklist again x86/speculation: Clean up various Spectre related details x86/speculation: Fix up array_index_nospec_mask() asm constraint x86/speculation: Add <asm/msr-index.h> dependency x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend x86/mm: Factor out LDT init from context init x86/mm: Give each mm TLB flush generation a unique ID x86/speculation: Use Indirect Branch Prediction Barrier in context switch x86/spectre_v2: Don't check microcode versions when running under hypervisors x86/speculation: Use IBRS if available before calling into firmware x86/speculation: Move firmware_restrict_branch_speculation_*() from C to CPP x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist selftest/seccomp: Fix the flag name SECCOMP_FILTER_FLAG_TSYNC selftest/seccomp: Fix the seccomp(2) signature xen: set cpu capabilities from xen_start_kernel() x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen x86/nospec: Simplify alternative_msr_write() x86/bugs: Concentrate bug detection into a separate function x86/bugs: Concentrate bug reporting into a separate function x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits x86/bugs, KVM: Support the combination of guest and host IBRS x86/cpu: Rename Merrifield2 to Moorefield x86/cpu/intel: Add Knights Mill to Intel family x86/bugs: Expose /sys/../spec_store_bypass x86/cpufeatures: Add X86_FEATURE_RDS x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation x86/bugs/intel: Set proper CPU features and setup RDS x86/bugs: Whitelist allowed SPEC_CTRL MSR values x86/bugs/AMD: Add support to disable RDS on Fam[15, 16, 17]h if requested x86/speculation: Create spec-ctrl.h to avoid include hell prctl: Add speculation control prctls x86/process: Optimize TIF checks in __switch_to_xtra() x86/process: Correct and optimize TIF_BLOCKSTEP switch x86/process: Optimize TIF_NOTSC switch x86/process: Allow runtime control of Speculative Store Bypass x86/speculation: Add prctl for Speculative Store Bypass mitigation nospec: Allow getting/setting on non-current task proc: Provide details on speculation flaw mitigations seccomp: Enable speculation flaw mitigations prctl: Add force disable speculation seccomp: Use PR_SPEC_FORCE_DISABLE seccomp: Add filter flag to opt-out of SSB mitigation seccomp: Move speculation migitation control to arch code x86/speculation: Make "seccomp" the default mode for Speculative Store Bypass x86/bugs: Rename _RDS to _SSBD proc: Use underscores for SSBD in 'status' Documentation/spec_ctrl: Do some minor cleanups x86/bugs: Fix __ssb_select_mitigation() return type x86/bugs: Make cpu_show_common() static x86/bugs: Fix the parameters alignment and missing void x86/cpu: Make alternative_msr_write work for 32-bit code x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS x86/cpufeatures: Disentangle SSBD enumeration x86/cpu/AMD: Fix erratum 1076 (CPB bit) x86/cpufeatures: Add FEATURE_ZEN x86/speculation: Handle HT correctly on AMD x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL x86/speculation: Add virtualized speculative store bypass disable support x86/speculation: Rework speculative_store_bypass_update() x86/bugs: Unify x86_spec_ctrl_{set_guest, restore_host} x86/bugs: Expose x86_spec_ctrl_base directly x86/bugs: Remove x86_spec_ctrl_set() x86/bugs: Rework spec_ctrl base and mask logic x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG x86/bugs: Rename SSBD_NO to SSB_NO x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths x86/cpu: Re-apply forced caps every time CPU caps are re-read block: do not use interruptible wait anywhere clk: tegra: Fix PLL_U post divider and initial rate on Tegra30 ubi: Introduce vol_ignored() ubi: Rework Fastmap attach base code ubi: Be more paranoid while seaching for the most recent Fastmap ubi: Fix races around ubi_refill_pools() ubi: Fix Fastmap's update_vol() ubi: fastmap: Erase outdated anchor PEBs during attach Linux 4.4.144 Change-Id: I548db9c2be75c4d70add49f6e8238534f55289a7 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
* | \ \ \ \ \ \ \ \ Merge 4.4.190 into android-4.4Greg Kroah-Hartman2019-08-25
|\ \ \ \ \ \ \ \ \ \ | | |_|_|_|_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.190 usb: iowarrior: fix deadlock on disconnect sound: fix a memory leak bug x86/mm: Check for pfn instead of page in vmalloc_sync_one() x86/mm: Sync also unmappings in vmalloc_sync_all() mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() perf db-export: Fix thread__exec_comm() usb: yurex: Fix use-after-free in yurex_delete can: peak_usb: fix potential double kfree_skb() netfilter: nfnetlink: avoid deadlock due to synchronous request_module iscsi_ibft: make ISCSI_IBFT dependson ACPI instead of ISCSI_IBFT_FIND mac80211: don't warn about CW params when not using them hwmon: (nct6775) Fix register address and added missed tolerance for nct6106 cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init() s390/qdio: add sanity checks to the fast-requeue path ALSA: compress: Fix regression on compressed capture streams ALSA: compress: Prevent bypasses of set_params ALSA: compress: Be more restrictive about when a drain is allowed perf probe: Avoid calling freeing routine multiple times for same pointer ARM: davinci: fix sleep.S build error on ARMv4 scsi: megaraid_sas: fix panic on loading firmware crashdump scsi: ibmvfc: fix WARN_ON during event pool release tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop perf/core: Fix creating kernel counters for PMUs that override event->cpu can: peak_usb: pcan_usb_pro: Fix info-leaks to USB devices can: peak_usb: pcan_usb_fd: Fix info-leaks to USB devices hwmon: (nct7802) Fix wrong detection of in4 presence ALSA: firewire: fix a memory leak bug mac80211: don't WARN on short WMM parameters from AP SMB3: Fix deadlock in validate negotiate hits reconnect smb3: send CAP_DFS capability during session setup mwifiex: fix 802.11n/WPA detection scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA sh: kernel: hw_breakpoint: Fix missing break in switch statement usb: gadget: f_midi: fail if set_alt fails to allocate requests USB: gadget: f_midi: fixing a possible double-free in f_midi mm/memcontrol.c: fix use after free in mem_cgroup_iter() ALSA: hda - Fix a memory leak bug HID: holtek: test for sanity of intfdata HID: hiddev: avoid opening a disconnected device HID: hiddev: do cleanup in failure of opening a device Input: kbtab - sanity check for endpoint type Input: iforce - add sanity checks net: usb: pegasus: fix improper read if get_registers() fail xen/pciback: remove set but not used variable 'old_state' irqchip/irq-imx-gpcv2: Forward irq type to parent perf header: Fix divide by zero error if f_header.attr_size==0 perf header: Fix use of unitialized value warning libata: zpodd: Fix small read overflow in zpodd_get_mech_type() scsi: hpsa: correct scsi command status issue after reset ata: libahci: do not complain in case of deferred probe kbuild: modpost: handle KBUILD_EXTRA_SYMBOLS only for external modules IB/core: Add mitigation for Spectre V1 ocfs2: remove set but not used variable 'last_hash' asm-generic: fix -Wtype-limits compiler warnings staging: comedi: dt3000: Fix signed integer overflow 'divider * base' staging: comedi: dt3000: Fix rounding up of timer divisor USB: core: Fix races in character device registration and deregistraion usb: cdc-acm: make sure a refcount is taken early enough USB: serial: option: add D-Link DWM-222 device ID USB: serial: option: Add support for ZTE MF871A USB: serial: option: add the BroadMobi BM818 card USB: serial: option: Add Motorola modem UARTs Backport minimal compiler_attributes.h to support GCC 9 include/linux/module.h: copy __init/__exit attrs to init/cleanup_module arm64: compat: Allow single-byte watchpoints on all addresses Input: psmouse - fix build error of multiple definition asm-generic: default BUG_ON(x) to if(x)BUG() scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure RDMA: Directly cast the sockaddr union to sockaddr IB/mlx5: Make coding style more consistent x86/vdso: Remove direct HPET access through the vDSO iommu/amd: Move iommu_init_pci() to .init section x86/boot: Disable the address-of-packed-member compiler warning net/packet: fix race in tpacket_snd() xen/netback: Reset nr_frags before freeing skb net/mlx5e: Only support tx/rx pause setting for port owner sctp: fix the transport error_count check bonding: Add vlan tx offload to hw_enc_features Linux 4.4.190 Change-Id: I2af7fee66e6ce77c41266cec8cfa7b7c4a78a05c Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | | | | | | | | x86/vdso: Remove direct HPET access through the vDSOAndy Lutomirski2019-08-25
| | |_|_|_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 1ed95e52d902035e39a715ff3a314a893a96e5b7 upstream. Allowing user code to map the HPET is problematic. HPET implementations are notoriously buggy, and there are probably many machines on which even MMIO reads from bogus HPET addresses are problematic. We have a report that the Dell Precision M2800 with: ACPI: HPET 0x00000000C8FE6238 000038 (v01 DELL CBX3 01072009 AMI. 00000005) is either so slow when accessing the HPET or actually hangs in some regard, causing soft lockups to be reported if users do unexpected things to the HPET. The vclock HPET code has also always been a questionable speedup. Accessing an HPET is exceedingly slow (on the order of several microseconds), so the added overhead in requiring a syscall to read the HPET is a small fraction of the total code of accessing it. To avoid future problems, let's just delete the code entirely. In the long run, this could actually be a speedup. Waiman Long as a patch to optimize the case where multiple CPUs contend for the HPET, but that won't help unless all the accesses are mediated by the kernel. Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andy Lutomirski <luto@kernel.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Waiman Long <Waiman.Long@hpe.com> Cc: Waiman Long <waiman.long@hpe.com> Link: http://lkml.kernel.org/r/d2f90bba98db9905041cff294646d290d378f67a.1460074438.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | | | | Merge 4.4.189 into android-4.4Greg Kroah-Hartman2019-08-11
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.189 arm64: cpufeature: Fix CTR_EL0 field definitions arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} netfilter: nfnetlink_acct: validate NFACCT_QUOTA parameter HID: Add quirk for HP X1200 PIXART OEM mouse tcp: be more careful in tcp_fragment() atm: iphase: Fix Spectre v1 vulnerability net: bridge: delete local fdb on device init failure net: fix ifindex collision during namespace removal tipc: compat: allow tipc commands without arguments net: sched: Fix a possible null-pointer dereference in dequeue_func() net/mlx5: Use reversed order when unregister devices bnx2x: Disable multi-cos feature. compat_ioctl: pppoe: fix PPPOEIOCSFWD handling block: blk_init_allocated_queue() set q->fq as NULL in the fail case spi: bcm2835: Fix 3-wire mode if DMA is enabled x86: cpufeatures: Sort feature word 7 x86/entry/64: Fix context tracking state warning when load_gs_index fails x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations x86/speculation: Enable Spectre v1 swapgs mitigations x86/entry/64: Use JMP instead of JMPQ x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS Linux 4.4.189 Change-Id: I3d4e7965c8f5547ab025236686ea0d60e0b6e1f4 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | | | | | | | x86/entry/64: Use JMP instead of JMPQJosh Poimboeuf2019-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 64dbc122b20f75183d8822618c24f85144a5a94d upstream. Somehow the swapgs mitigation entry code patch ended up with a JMPQ instruction instead of JMP, where only the short jump is needed. Some assembler versions apparently fail to optimize JMPQ into a two-byte JMP when possible, instead always using a 7-byte JMP with relocation. For some reason that makes the entry code explode with a #GP during boot. Change it back to "JMP" as originally intended. Fixes: 18ec54fdd6d1 ("x86/speculation: Prepare entry code for Spectre v1 swapgs mitigations") Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> [bwh: Backported to 4.4: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | | | x86/speculation: Prepare entry code for Spectre v1 swapgs mitigationsJosh Poimboeuf2019-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 18ec54fdd6d18d92025af097cd042a75cf0ea24c upstream. Spectre v1 isn't only about array bounds checks. It can affect any conditional checks. The kernel entry code interrupt, exception, and NMI handlers all have conditional swapgs checks. Those may be problematic in the context of Spectre v1, as kernel code can speculatively run with a user GS. For example: if (coming from user space) swapgs mov %gs:<percpu_offset>, %reg mov (%reg), %reg1 When coming from user space, the CPU can speculatively skip the swapgs, and then do a speculative percpu load using the user GS value. So the user can speculatively force a read of any kernel value. If a gadget exists which uses the percpu value as an address in another load/store, then the contents of the kernel value may become visible via an L1 side channel attack. A similar attack exists when coming from kernel space. The CPU can speculatively do the swapgs, causing the user GS to get used for the rest of the speculative window. The mitigation is similar to a traditional Spectre v1 mitigation, except: a) index masking isn't possible; because the index (percpu offset) isn't user-controlled; and b) an lfence is needed in both the "from user" swapgs path and the "from kernel" non-swapgs path (because of the two attacks described above). The user entry swapgs paths already have SWITCH_TO_KERNEL_CR3, which has a CR3 write when PTI is enabled. Since CR3 writes are serializing, the lfences can be skipped in those cases. On the other hand, the kernel entry swapgs paths don't depend on PTI. To avoid unnecessary lfences for the user entry case, create two separate features for alternative patching: X86_FEATURE_FENCE_SWAPGS_USER X86_FEATURE_FENCE_SWAPGS_KERNEL Use these features in entry code to patch in lfences where needed. The features aren't enabled yet, so there's no functional change. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Dave Hansen <dave.hansen@intel.com> [bwh: Backported to 4.4: - Assign the CPU feature bits from word 7 - Add FENCE_SWAPGS_KERNEL_ENTRY to NMI entry, since it does not use paranoid_entry - Include <asm/cpufeatures.h> in calling.h - Adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | | | x86/entry/64: Fix context tracking state warning when load_gs_index failsWanpeng Li2019-08-11
| | |_|_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 2fa5f04f85730d0c4f49f984b7efeb4f8d5bd1fc upstream. This warning: WARNING: CPU: 0 PID: 3331 at arch/x86/entry/common.c:45 enter_from_user_mode+0x32/0x50 CPU: 0 PID: 3331 Comm: ldt_gdt_64 Not tainted 4.8.0-rc7+ #13 Call Trace: dump_stack+0x99/0xd0 __warn+0xd1/0xf0 warn_slowpath_null+0x1d/0x20 enter_from_user_mode+0x32/0x50 error_entry+0x6d/0xc0 ? general_protection+0x12/0x30 ? native_load_gs_index+0xd/0x20 ? do_set_thread_area+0x19c/0x1f0 SyS_set_thread_area+0x24/0x30 do_int80_syscall_32+0x7c/0x220 entry_INT80_compat+0x38/0x50 ... can be reproduced by running the GS testcase of the ldt_gdt test unit in the x86 selftests. do_int80_syscall_32() will call enter_form_user_mode() to convert context tracking state from user state to kernel state. The load_gs_index() call can fail with user gsbase, gsbase will be fixed up and proceed if this happen. However, enter_from_user_mode() will be called again in the fixed up path though it is context tracking kernel state currently. This patch fixes it by just fixing up gsbase and telling lockdep that IRQs are off once load_gs_index() failed with user gsbase. Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1475197266-3440-1-git-send-email-wanpeng.li@hotmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | | | Merge 4.4.180 into android-4.4Greg Kroah-Hartman2019-05-16
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.180 kbuild: simplify ld-option implementation KVM: fail KVM_SET_VCPU_EVENTS with invalid exception number cifs: do not attempt cifs operation on smb2+ rename error MIPS: scall64-o32: Fix indirect syscall number load trace: Fix preempt_enable_no_resched() abuse sched/numa: Fix a possible divide-by-zero ceph: ensure d_name stability in ceph_dentry_hash() ceph: fix ci->i_head_snapc leak nfsd: Don't release the callback slot unless it was actually held sunrpc: don't mark uninitialised items as VALID. USB: Add new USB LPM helpers USB: Consolidate LPM checks to avoid enabling LPM twice powerpc/xmon: Add RFI flush related fields to paca dump powerpc/64s: Improve RFI L1-D cache flush fallback powerpc/pseries: Support firmware disable of RFI flush powerpc/powernv: Support firmware disable of RFI flush powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again powerpc/rfi-flush: Always enable fallback flush on pseries powerpc/rfi-flush: Differentiate enabled and patched flush types powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration powerpc: Add security feature flags for Spectre/Meltdown powerpc/pseries: Set or clear security feature flags powerpc/powernv: Set or clear security feature flags powerpc/64s: Move cpu_show_meltdown() powerpc/64s: Enhance the information in cpu_show_meltdown() powerpc/powernv: Use the security flags in pnv_setup_rfi_flush() powerpc/pseries: Use the security flags in pseries_setup_rfi_flush() powerpc/64s: Wire up cpu_show_spectre_v1() powerpc/64s: Wire up cpu_show_spectre_v2() powerpc/pseries: Fix clearing of security feature flags powerpc: Move default security feature flags powerpc/pseries: Restore default security feature flags on setup powerpc/64s: Fix section mismatch warnings from setup_rfi_flush() powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit powerpc/64s: Add barrier_nospec powerpc/64s: Add support for ori barrier_nospec patching powerpc/64s: Patch barrier_nospec in modules powerpc/64s: Enable barrier_nospec based on firmware settings powerpc/64: Use barrier_nospec in syscall entry powerpc: Use barrier_nospec in copy_from_user() powerpc/64s: Enhance the information in cpu_show_spectre_v1() powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 powerpc/64: Disable the speculation barrier from the command line powerpc/64: Make stf barrier PPC_BOOK3S_64 specific. powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC powerpc/64: Call setup_barrier_nospec() from setup_arch() powerpc/64: Make meltdown reporting Book3S 64 specific powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E powerpc/asm: Add a patch_site macro & helpers for patching instructions powerpc/64s: Add new security feature flags for count cache flush powerpc/64s: Add support for software count cache flush powerpc/pseries: Query hypervisor for count cache flush settings powerpc/powernv: Query firmware for count cache flush settings powerpc: Avoid code patching freed init sections powerpc/fsl: Add infrastructure to fixup branch predictor flush powerpc/fsl: Add macro to flush the branch predictor powerpc/fsl: Fix spectre_v2 mitigations reporting powerpc/fsl: Add nospectre_v2 command line argument powerpc/fsl: Flush the branch predictor at each kernel entry (64bit) powerpc/fsl: Update Spectre v2 reporting powerpc/security: Fix spectre_v2 reporting powerpc/fsl: Fix the flush of branch predictor. tipc: handle the err returned from cmd header function slip: make slhc_free() silently accept an error pointer intel_th: gth: Fix an off-by-one in output unassigning fs/proc/proc_sysctl.c: Fix a NULL pointer dereference NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family. netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON tipc: check bearer name with right length in tipc_nl_compat_bearer_enable tipc: check link name with right length in tipc_nl_compat_link_set bpf: reject wrong sized filters earlier Revert "block/loop: Use global lock for ioctl() operation." ipv4: add sanity checks in ipv4_link_failure() team: fix possible recursive locking when add slaves net: stmmac: move stmmac_check_ether_addr() to driver probe ipv4: set the tcp_min_rtt_wlen range from 0 to one day powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used powerpc/fsl: Flush branch predictor when entering KVM powerpc/fsl: Emulate SPRN_BUCSR register powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit) powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup' powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg Documentation: Add nospectre_v1 parameter usbnet: ipheth: prevent TX queue timeouts when device not ready usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set qlcnic: Avoid potential NULL pointer dereference netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() usb: gadget: net2280: Fix overrun of OUT messages usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2272: Fix net2272_dequeue() ARM: dts: pfla02: increase phy reset duration net: ks8851: Dequeue RX packets explicitly net: ks8851: Reassert reset pin if chip ID check fails net: ks8851: Delay requesting IRQ until opened net: ks8851: Set initial carrier state to down net: xilinx: fix possible object reference leak net: ibm: fix possible object reference leak net: ethernet: ti: fix possible object reference leak scsi: qla4xxx: fix a potential NULL pointer dereference usb: u132-hcd: fix resource leak ceph: fix use-after-free on symlink traversal scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN libata: fix using DMA buffers on stack kconfig/[mn]conf: handle backspace (^H) key vfio/type1: Limit DMA mappings per container ALSA: line6: use dynamic buffers ipv4: ip_do_fragment: Preserve skb_iif during fragmentation ipv6/flowlabel: wait rcu grace period before put_pid() ipv6: invert flowlabel sharing check in process and user mode bnxt_en: Improve multicast address setup logic. packet: validate msg_namelen in send directly USB: yurex: Fix protection fault after device removal USB: w1 ds2490: Fix bug caused by improper use of altsetting array USB: core: Fix unterminated string returned by usb_string() USB: core: Fix bug caused by duplicate interface PM usage counter HID: debug: fix race condition with between rdesc_show() and device removal rtc: sh: Fix invalid alarm warning for non-enabled alarm igb: Fix WARN_ONCE on runtime suspend bonding: show full hw address in sysfs for slave entries jffs2: fix use-after-free on symlink traversal debugfs: fix use-after-free on symlink traversal rtc: da9063: set uie_unsupported when relevant vfio/pci: use correct format characters scsi: storvsc: Fix calculation of sub-channel count net: hns: Use NAPI_POLL_WEIGHT for hns driver net: hns: Fix WARNING when remove HNS driver with SMMU enabled hugetlbfs: fix memory leak for resv_map xsysace: Fix error handling in ace_setup ARM: orion: don't use using 64-bit DMA masks ARM: iop: don't use using 64-bit DMA masks usb: usbip: fix isoc packet num validation in get_pipe staging: iio: adt7316: allow adt751x to use internal vref for all dacs staging: iio: adt7316: fix the dac read calculation staging: iio: adt7316: fix the dac write calculation Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ selinux: never allow relabeling on context mounts x86/mce: Improve error message when kernel cannot recover, p2 media: v4l2: i2c: ov7670: Fix PLL bypass register values scsi: libsas: fix a race condition when smp task timeout ASoC:soc-pcm:fix a codec fixup issue in TDM case ASoC: cs4270: Set auto-increment bit for register writes ASoC: tlv320aic32x4: Fix Common Pins perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS scsi: csiostor: fix missing data copy in csio_scsi_err_handler() iommu/amd: Set exclusion range correctly genirq: Prevent use-after-free and work list corruption usb: dwc3: Fix default lpm_nyet_threshold value scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines Bluetooth: hidp: fix buffer overflow Bluetooth: Align minimum encryption key size for LE and BR/EDR connections UAS: fix alignment of scatter/gather segments ipv6: fix a potential deadlock in do_ipv6_setsockopt() ASoC: Intel: avoid Oops if DMA setup fails timer/debug: Change /proc/timer_stats from 0644 to 0600 netfilter: compat: initialize all fields in xt_init platform/x86: sony-laptop: Fix unintentional fall-through iio: adc: xilinx: fix potential use-after-free on remove HID: input: add mapping for Expose/Overview key HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys libnvdimm/btt: Fix a kmemdup failure check s390/dasd: Fix capacity calculation for large volumes s390/3270: fix lockdep false positive on view->lock KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing tools lib traceevent: Fix missing equality check for strcmp init: initialize jump labels before command line option parsing ipvs: do not schedule icmp errors from tunnels s390: ctcm: fix ctcm_new_device error return code selftests/net: correct the return value for run_netsocktests gpu: ipu-v3: dp: fix CSC handling cw1200: fix missing unlock on error in cw1200_hw_scan() x86/vdso: Pass --eh-frame-hdr to the linker Don't jump to compute_result state from check_result state locking/static_keys: Provide DECLARE and well as DEFINE macros x86/microcode/intel: Add a helper which gives the microcode revision x86: stop exporting msr-index.h to userland bitops: avoid integer overflow in GENMASK(_ULL) x86/microcode/intel: Check microcode revision before updating sibling threads x86/MCE: Save microcode revision in machine check records x86/cpufeatures: Hide AMD-specific speculation flags x86/speculation: Support Enhanced IBRS on future CPUs x86/speculation: Simplify the CPU bug detection logic x86/bugs: Add AMD's variant of SSB_NO x86/bugs: Add AMD's SPEC_CTRL MSR usage x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation x86/microcode: Make sure boot_cpu_data.microcode is up-to-date x86/microcode: Update the new microcode revision unconditionally x86/cpu: Sanitize FAM6_ATOM naming KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled x86/mm: Use WRITE_ONCE() when setting PTEs x86/speculation: Apply IBPB more strictly to avoid cross-process data leak x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation x86/speculation: Propagate information about RSB filling mitigation to sysfs x86/speculation: Update the TIF_SSBD comment x86/speculation: Clean up spectre_v2_parse_cmdline() x86/speculation: Remove unnecessary ret variable in cpu_show_common() x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common() x86/speculation: Disable STIBP when enhanced IBRS is in use x86/speculation: Rename SSBD update functions x86/speculation: Reorganize speculation control MSRs update x86/Kconfig: Select SCHED_SMT if SMP enabled sched: Add sched_smt_active() x86/speculation: Rework SMT state change x86/speculation: Reorder the spec_v2 code x86/speculation: Mark string arrays const correctly x86/speculataion: Mark command line parser data __initdata x86/speculation: Unify conditional spectre v2 print functions x86/speculation: Add command line control for indirect branch speculation x86/speculation: Prepare for per task indirect branch speculation control x86/process: Consolidate and simplify switch_to_xtra() code x86/speculation: Avoid __switch_to_xtra() calls x86/speculation: Prepare for conditional IBPB in switch_mm() x86/speculation: Split out TIF update x86/speculation: Prepare arch_smt_update() for PRCTL mode x86/speculation: Prevent stale SPEC_CTRL msr content x86/speculation: Add prctl() control for indirect branch speculation x86/speculation: Enable prctl mode for spectre_v2_user x86/speculation: Add seccomp Spectre v2 user space protection mode x86/speculation: Provide IBPB always command line options kvm: x86: Report STIBP on GET_SUPPORTED_CPUID x86/msr-index: Cleanup bit defines x86/speculation: Consolidate CPU whitelists x86/speculation/mds: Add basic bug infrastructure for MDS x86/speculation/mds: Add BUG_MSBDS_ONLY x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests x86/speculation/mds: Add mds_clear_cpu_buffers() x86/speculation/mds: Clear CPU buffers on exit to user x86/speculation/mds: Conditionally clear CPU buffers on idle entry x86/speculation/mds: Add mitigation control for MDS x86/speculation/l1tf: Document l1tf in sysfs x86/speculation/mds: Add sysfs reporting for MDS x86/speculation/mds: Add mitigation mode VMWERV Documentation: Move L1TF to separate directory Documentation: Add MDS vulnerability documentation x86/cpu/bugs: Use __initconst for 'const' init data x86/speculation: Move arch_smt_update() call to after mitigation decisions x86/speculation/mds: Add SMT warning message x86/speculation/mds: Fix comment x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off cpu/speculation: Add 'mitigations=' cmdline option x86/speculation: Support 'mitigations=' cmdline option x86/speculation/mds: Add 'mitigations=' support for MDS x86/mds: Add MDSUM variant to the MDS documentation Documentation: Correct the possible MDS sysfs values x86/speculation/mds: Fix documentation typo x86/bugs: Change L1TF mitigation string to match upstream USB: serial: use variable for status USB: serial: fix unthrottle races powerpc/64s: Include cpu header bridge: Fix error path for kobject_init_and_add() net: ucc_geth - fix Oops when changing number of buffers in the ring packet: Fix error path in packet_init vlan: disable SIOCSHWTSTAMP in container vrf: sit mtu should not be updated when vrf netdev is the link ipv4: Fix raw socket lookup for local traffic bonding: fix arp_validate toggling in active-backup mode drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl powerpc/booke64: set RI in default MSR powerpc/lib: fix book3s/32 boot failure due to code patching Linux 4.4.180 Change-Id: If2d2fdd451b55c002666b32022b269cec9545607 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | | | | | | x86/speculation/mds: Clear CPU buffers on exit to userThomas Gleixner2019-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 04dcbdb8057827b043b3c71aa397c4c63e67d086 upstream. Add a static key which controls the invocation of the CPU buffer clear mechanism on exit to user space and add the call into prepare_exit_to_usermode() and do_nmi() right before actually returning. Add documentation which kernel to user space transition this covers and explain why some corner cases are not mitigated. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Borislav Petkov <bp@suse.de> Reviewed-by: Frederic Weisbecker <frederic@kernel.org> Reviewed-by: Jon Masters <jcm@redhat.com> Tested-by: Jon Masters <jcm@redhat.com> [bwh: Backported to 4.4: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | | x86/vdso: Pass --eh-frame-hdr to the linkerAlistair Strachan2019-05-16
| | |_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit cd01544a268ad8ee5b1dfe42c4393f1095f86879 upstream. Commit 379d98ddf413 ("x86: vdso: Use $LD instead of $CC to link") accidentally broke unwinding from userspace, because ld would strip the .eh_frame sections when linking. Originally, the compiler would implicitly add --eh-frame-hdr when invoking the linker, but when this Makefile was converted from invoking ld via the compiler, to invoking it directly (like vmlinux does), the flag was missed. (The EH_FRAME section is important for the VDSO shared libraries, but not for vmlinux.) Fix the problem by explicitly specifying --eh-frame-hdr, which restores parity with the old method. See relevant bug reports for additional info: https://bugzilla.kernel.org/show_bug.cgi?id=201741 https://bugzilla.redhat.com/show_bug.cgi?id=1659295 Fixes: 379d98ddf413 ("x86: vdso: Use $LD instead of $CC to link") Reported-by: Florian Weimer <fweimer@redhat.com> Reported-by: Carlos O'Donell <carlos@redhat.com> Reported-by: "H. J. Lu" <hjl.tools@gmail.com> Signed-off-by: Alistair Strachan <astrachan@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Laura Abbott <labbott@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Carlos O'Donell <carlos@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: kernel-team@android.com Cc: Laura Abbott <labbott@redhat.com> Cc: stable <stable@vger.kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: X86 ML <x86@kernel.org> Link: https://lkml.kernel.org/r/20181214223637.35954-1-astrachan@google.com Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | | | Merge 4.4.179 into android-4.4Greg Kroah-Hartman2019-04-30
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.179 arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals arm64: debug: Ensure debug handlers check triggering exception level ext4: cleanup bh release code in ext4_ind_remove_space() lib/int_sqrt: optimize initial value compute tty/serial: atmel: Add is_half_duplex helper mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified i2c: core-smbus: prevent stack corruption on read I2C_BLOCK_DATA Bluetooth: Fix decrementing reference count twice in releasing socket tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped CIFS: fix POSIX lock leak and invalid ptr deref h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux- tracing: kdb: Fix ftdump to not sleep gpio: gpio-omap: fix level interrupt idling sysctl: handle overflow for file-max enic: fix build warning without CONFIG_CPUMASK_OFFSTACK mm/cma.c: cma_declare_contiguous: correct err handling mm/page_ext.c: fix an imbalance with kmemleak mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512! mm/slab.c: kmemleak no scan alien caches ocfs2: fix a panic problem caused by o2cb_ctl f2fs: do not use mutex lock in atomic context fs/file.c: initialize init_files.resize_wait cifs: use correct format characters dm thin: add sanity checks to thin-pool and external snapshot creation cifs: Fix NULL pointer dereference of devname fs: fix guard_bio_eod to check for real EOD errors tools lib traceevent: Fix buffer overflow in arg_eval usb: chipidea: Grab the (legacy) USB PHY by phandle first scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c coresight: etm4x: Add support to enable ETMv4.2 ARM: 8840/1: use a raw_spinlock_t in unwind mmc: omap: fix the maximum timeout setting e1000e: Fix -Wformat-truncation warnings IB/mlx4: Increase the timeout for CM cache scsi: megaraid_sas: return error when create DMA pool failed perf test: Fix failure of 'evsel-tp-sched' test on s390 SoC: imx-sgtl5000: add missing put_device() media: sh_veu: Correct return type for mem2mem buffer helpers media: s5p-jpeg: Correct return type for mem2mem buffer helpers media: s5p-g2d: Correct return type for mem2mem buffer helpers media: mx2_emmaprp: Correct return type for mem2mem buffer helpers leds: lp55xx: fix null deref on firmware load failure kprobes: Prohibit probing on bsearch() ARM: 8833/1: Ensure that NEON code always compiles with Clang ALSA: PCM: check if ops are defined before suspending PCM bcache: fix input overflow to cache set sysfs file io_error_halflife bcache: fix input overflow to sequential_cutoff bcache: improve sysfs_strtoul_clamp() fbdev: fbmem: fix memory access if logo is bigger than the screen cdrom: Fix race condition in cdrom_sysctl_register ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe soc: qcom: gsbi: Fix error handling in gsbi_probe() mt7601u: bump supported EEPROM version ARM: avoid Cortex-A9 livelock on tight dmb loops tty: increase the default flip buffer limit to 2*640K media: mt9m111: set initial frame size other than 0x0 hwrng: virtio - Avoid repeated init of completion soc/tegra: fuse: Fix illegal free of IO base address hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable dmaengine: imx-dma: fix warning comparison of distinct pointer types netfilter: physdev: relax br_netfilter dependency media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting wlcore: Fix memory leak in case wl12xx_fetch_firmware failure x86/build: Mark per-CPU symbols as absolute explicitly for LLD dmaengine: tegra: avoid overflow of byte tracking drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers binfmt_elf: switch to new creds when switching to new mm kbuild: clang: choose GCC_TOOLCHAIN_DIR not on LD x86/build: Specify elf_i386 linker emulation explicitly for i386 objects x86: vdso: Use $LD instead of $CC to link x86/vdso: Drop implicit common-page-size linker flag lib/string.c: implement a basic bcmp tty: mark Siemens R3964 line discipline as BROKEN tty: ldisc: add sysctl to prevent autoloading of ldiscs ipv6: Fix dangling pointer when ipv6 fragment ipv6: sit: reset ip header pointer in ipip6_rcv net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). openvswitch: fix flow actions reallocation qmi_wwan: add Olicard 600 sctp: initialize _pad of sockaddr_in before copying to user memory tcp: Ensure DCTCP reacts to losses netns: provide pure entropy for net_hash_mix() net: ethtool: not call vzalloc for zero sized memory request ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type ALSA: seq: Fix OOB-reads from strlcpy include/linux/bitrev.h: fix constant bitrev ASoC: fsl_esai: fix channel swap issue when stream starts block: do not leak memory in bio_copy_user_iov() genirq: Respect IRQCHIP_SKIP_SET_WAKE in irq_chip_set_wake_parent() ARM: dts: at91: Fix typo in ISC_D0 on PC9 arm64: futex: Fix FUTEX_WAKE_OP atomic ops with non-zero result value xen: Prevent buffer overflow in privcmd ioctl sched/fair: Do not re-read ->h_load_next during hierarchical load calculation xtensa: fix return_address PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller perf/core: Restore mmap record type correctly ext4: add missing brelse() in add_new_gdb_meta_bg() ext4: report real fs size after failed resize ALSA: echoaudio: add a check for ioremap_nocache ALSA: sb8: add a check for request_region IB/mlx4: Fix race condition between catas error reset and aliasguid flows mmc: davinci: remove extraneous __init annotation ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration thermal/int340x_thermal: Add additional UUIDs thermal/int340x_thermal: fix mode setting tools/power turbostat: return the exit status of a command perf top: Fix error handling in cmd_top() perf evsel: Free evsel->counts in perf_evsel__exit() perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test() x86/hpet: Prevent potential NULL pointer dereference x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors iommu/vt-d: Check capability before disabling protected memory x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error fix incorrect error code mapping for OBJECTID_NOT_FOUND ext4: prohibit fstrim in norecovery mode rsi: improve kernel thread handling to fix kernel panic 9p: do not trust pdu content for stat item size 9p locks: add mount option for lock retry interval f2fs: fix to do sanity check with current segment number serial: uartps: console_setup() can't be placed to init section ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms ACPI / SBS: Fix GPE storm on recent MacBookPro's cifs: fallback to older infolevels on findfirst queryinfo retry crypto: sha256/arm - fix crash bug in Thumb2 build crypto: sha512/arm - fix crash bug in Thumb2 build iommu/dmar: Fix buffer overflow during PCI bus notification ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t appletalk: Fix use-after-free in atalk_proc_exit lib/div64.c: off by one in shift include/linux/swap.h: use offsetof() instead of custom __swapoffset macro tpm/tpm_crb: Avoid unaligned reads in crb_recv() ovl: fix uid/gid when creating over whiteout appletalk: Fix compile regression bonding: fix event handling for stacked bonds net: atm: Fix potential Spectre v1 vulnerabilities net: bridge: multicast: use rcu to access port list from br_multicast_start_querier net: fou: do not use guehdr after iptunnel_pull_offloads in gue_udp_recv tcp: tcp_grow_window() needs to respect tcp_space() ipv4: recompile ip options in ipv4_link_failure ipv4: ensure rcu_read_lock() in ipv4_link_failure() crypto: crypto4xx - properly set IV after de- and encrypt modpost: file2alias: go back to simple devtable lookup modpost: file2alias: check prototype of handler tpm/tpm_i2c_atmel: Return -E2BIG when the transfer is incomplete KVM: x86: Don't clear EFER during SMM transitions for 32-bit vCPU iio/gyro/bmg160: Use millidegrees for temperature scale iio: ad_sigma_delta: select channel when reading register iio: adc: at91: disable adc channel interrupt in timeout case io: accel: kxcjk1013: restore the range after resume. staging: comedi: vmk80xx: Fix use of uninitialized semaphore staging: comedi: vmk80xx: Fix possible double-free of ->usb_rx_buf staging: comedi: ni_usb6501: Fix use of uninitialized mutex staging: comedi: ni_usb6501: Fix possible double-free of ->usb_rx_buf ALSA: core: Fix card races between register and disconnect crypto: x86/poly1305 - fix overflow during partial reduction arm64: futex: Restore oldval initialization to work around buggy compilers x86/kprobes: Verify stack frame on kretprobe kprobes: Mark ftrace mcount handler functions nokprobe kprobes: Fix error check when reusing optimized probes mac80211: do not call driver wake_tx_queue op during reconfig Revert "kbuild: use -Oz instead of -Os when using clang" sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup device_cgroup: fix RCU imbalance in error case mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n ALSA: info: Fix racy addition/deletion of nodes Revert "locking/lockdep: Add debug_locks check in __lock_downgrade()" kernel/sysctl.c: fix out-of-bounds access when setting file-max Linux 4.4.179 Change-Id: Ib81a248d73ba7504649be93bd6882b290e548882 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | | | | | x86/vdso: Drop implicit common-page-size linker flagNick Desaulniers2019-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit ac3e233d29f7f77f28243af0132057d378d3ea58 upstream. GNU linker's -z common-page-size's default value is based on the target architecture. arch/x86/entry/vdso/Makefile sets it to the architecture default, which is implicit and redundant. Drop it. Fixes: 2aae950b21e4 ("x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu") Reported-by: Dmitry Golovin <dima@golovin.in> Reported-by: Bill Wendling <morbo@google.com> Suggested-by: Dmitry Golovin <dima@golovin.in> Suggested-by: Rui Ueyama <ruiu@google.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Fangrui Song <maskray@google.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20181206191231.192355-1-ndesaulniers@google.com Link: https://bugs.llvm.org/show_bug.cgi?id=38774 Link: https://github.com/ClangBuiltLinux/linux/issues/31 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
| * | | | | | x86: vdso: Use $LD instead of $CC to linkAlistair Strachan2019-04-27
| | |_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 379d98ddf41344273d9718556f761420f4dc80b3 upstream. The vdso{32,64}.so can fail to link with CC=clang when clang tries to find a suitable GCC toolchain to link these libraries with. /usr/bin/ld: arch/x86/entry/vdso/vclock_gettime.o: access beyond end of merged section (782) This happens because the host environment leaked into the cross compiler environment due to the way clang searches for suitable GCC toolchains. Clang is a retargetable compiler, and each invocation of it must provide --target=<something> --gcc-toolchain=<something> to allow it to find the correct binutils for cross compilation. These flags had been added to KBUILD_CFLAGS, but the vdso code uses CC and not KBUILD_CFLAGS (for various reasons) which breaks clang's ability to find the correct linker when cross compiling. Most of the time this goes unnoticed because the host linker is new enough to work anyway, or is incompatible and skipped, but this cannot be reliably assumed. This change alters the vdso makefile to just use LD directly, which bypasses clang and thus the searching problem. The makefile will just use ${CROSS_COMPILE}ld instead, which is always what we want. This matches the method used to link vmlinux. This drops references to DISABLE_LTO; this option doesn't seem to be set anywhere, and not knowing what its possible values are, it's not clear how to convert it from CC to LD flag. Signed-off-by: Alistair Strachan <astrachan@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: kernel-team@android.com Cc: joel@joelfernandes.org Cc: Andi Kleen <andi.kleen@intel.com> Link: https://lkml.kernel.org/r/20180803173931.117515-1-astrachan@google.com Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | | | | | Merge 4.4.166 into android-4.4Greg Kroah-Hartman2018-12-01
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.166 usb: core: Fix hub port connection events lost usb: xhci: fix timeout for transition from RExit to U0 MAINTAINERS: Add Sasha as a stable branch maintainer iwlwifi: mvm: support sta_statistics() even on older firmware v9fs_dir_readdir: fix double-free on p9stat_read error bfs: add sanity check at bfs_fill_super() sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer gfs2: Don't leave s_fs_info pointing to freed memory in init_sbd llc: do not use sk_eat_skb() drm/ast: change resolution may cause screen blurred drm/ast: fixed cursor may disappear sometimes can: dev: can_get_echo_skb(): factor out non sending code to __can_get_echo_skb() can: dev: __can_get_echo_skb(): replace struct can_frame by canfd_frame to access frame length can: dev: __can_get_echo_skb(): Don't crash the kernel if can_priv::echo_skb is accessed out of bounds can: dev: __can_get_echo_skb(): print error message, if trying to echo non existing skb usb: xhci: Prevent bus suspend if a port connect change or polling state is detected KVM: PPC: Move and undef TRACE_INCLUDE_PATH/FILE cpufreq: imx6q: add return value check for voltage scale SUNRPC: Fix a bogus get/put in generic_key_to_expire() kdb: Use strscpy with destination buffer size powerpc/numa: Suppress "VPHN is not supported" messages tmpfs: make lseek(SEEK_DATA/SEK_HOLE) return ENXIO with a negative offset of: add helper to lookup compatible child node NFC: nfcmrvl_uart: fix OF child-node lookup net: bcmgenet: fix OF child-node lookup x86/entry: spell EBX register correctly in documentation x86/entry/64: Remove %ebx handling from error_entry/exit arm64: remove no-op -p linker flag ath10k: fix kernel panic due to race in accessing arvif list Input: xpad - remove spurious events of wireless xpad 360 controller Input: xpad - handle "present" and "gone" correctly Input: xpad - update Xbox One Force Feedback Support Input: xpad - workaround dead irq_out after suspend/ resume Input: xpad - use LED API when identifying wireless controllers Input: xpad - correct xbox one pad device name Input: xpad - remove unused function Input: xpad - add Mad Catz FightStick TE 2 VID/PID Input: xpad - prevent spurious input from wired Xbox 360 controllers Input: xpad - add more third-party controllers Input: xpad - xbox one elite controller support Input: xpad - fix rumble on Xbox One controllers with 2015 firmware Input: xpad - power off wireless 360 controllers on suspend Input: xpad - add product ID for Xbox One S pad Input: xpad - fix Xbox One rumble stopping after 2.5 secs Input: xpad - correctly sort vendor id's Input: xpad - move reporting xbox one home button to common function Input: xpad - simplify error condition in init_output Input: xpad - don't depend on endpoint order Input: xpad - fix stuck mode button on Xbox One S pad Input: xpad - restore LED state after device resume Input: xpad - support some quirky Xbox One pads Input: xpad - sort supported devices by USB ID Input: xpad - sync supported devices with xboxdrv Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth Input: xpad - sync supported devices with 360Controller Input: xpad - sync supported devices with XBCD Input: xpad - constify usb_device_id Input: xpad - fix PowerA init quirk for some gamepad models Input: xpad - validate USB endpoint type during probe Input: xpad - add support for PDP Xbox One controllers Input: xpad - add PDP device id 0x02a4 Input: xpad - fix some coding style issues Input: xpad - avoid using __set_bit() for capabilities Input: xpad - add GPD Win 2 Controller USB IDs Input: xpad - fix GPD Win 2 controller name Input: xpad - add support for Xbox1 PDP Camo series gamepad cw1200: Don't leak memory if krealloc failes mwifiex: Fix NULL pointer dereference in skb_dequeue() mwifiex: fix p2p device doesn't find in scan problem netfilter: nf_tables: fix oops when inserting an element into a verdict map scsi: ufs: fix bugs related to null pointer access and array size scsi: ufshcd: Fix race between clk scaling and ungate work scsi: ufs: fix race between clock gating and devfreq scaling work scsi: ufshcd: release resources if probe fails scsi: qla2xxx: do not queue commands when unloading iwlwifi: mvm: fix regulatory domain update when the firmware starts tty: wipe buffer. tty: wipe buffer if not echoing data usb: xhci: fix uninitialized completion when USB3 port got wrong status btrfs: Ensure btrfs_trim_fs can trim the whole filesystem sched/core: Allow __sched_setscheduler() in interrupts when PI is not used namei: allow restricted O_CREAT of FIFOs and regular files s390/mm: Check for valid vma before zapping in gmap_discard drm/ast: Remove existing framebuffers before loading driver Linux 4.4.166 Change-Id: Iba8f0b45bc490f291b504ebb12590b2b01d4f075 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | | | | x86/entry/64: Remove %ebx handling from error_entry/exitAndy Lutomirski2018-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit b3681dd548d06deb2e1573890829dff4b15abf46 ] error_entry and error_exit communicate the user vs. kernel status of the frame using %ebx. This is unnecessary -- the information is in regs->cs. Just use regs->cs. This makes error_entry simpler and makes error_exit more robust. It also fixes a nasty bug. Before all the Spectre nonsense, the xen_failsafe_callback entry point returned like this: ALLOC_PT_GPREGS_ON_STACK SAVE_C_REGS SAVE_EXTRA_REGS ENCODE_FRAME_POINTER jmp error_exit And it did not go through error_entry. This was bogus: RBX contained garbage, and error_exit expected a flag in RBX. Fortunately, it generally contained *nonzero* garbage, so the correct code path was used. As part of the Spectre fixes, code was added to clear RBX to mitigate certain speculation attacks. Now, depending on kernel configuration, RBX got zeroed and, when running some Wine workloads, the kernel crashes. This was introduced by: commit 3ac6d8c787b8 ("x86/entry/64: Clear registers for exceptions/interrupts, to reduce speculation attack surface") With this patch applied, RBX is no longer needed as a flag, and the problem goes away. I suspect that malicious userspace could use this bug to crash the kernel even without the offending patch applied, though. [ Historical note: I wrote this patch as a cleanup before I was aware of the bug it fixed. ] [ Note to stable maintainers: this should probably get applied to all kernels. If you're nervous about that, a more conservative fix to add xorl %ebx,%ebx; incl %ebx before the jump to error_exit should also fix the problem. ] Reported-and-tested-by: M. Vefa Bicakci <m.v.b@runbox.com> Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Cc: xen-devel@lists.xenproject.org Fixes: 3ac6d8c787b8 ("x86/entry/64: Clear registers for exceptions/interrupts, to reduce speculation attack surface") Link: http://lkml.kernel.org/r/b5010a090d3586b2d6e06c7ad3ec5542d1241c45.1532282627.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
| * | | | | x86/entry: spell EBX register correctly in documentationNicolas Iooss2018-12-01
| | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 75ca5b22260ef7b5ce39c6d521eee8b4cba44703 ] As EBS does not mean anything reasonable in the context it is used, it seems like a misspelling for EBX. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>
* | | | | BACKPORT: x86/ptrace: run seccomp after ptraceKees Cook2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves seccomp after ptrace on x86 to that seccomp can catch changes made by ptrace. Emulation should skip the rest of processing too. We can get rid of test_thread_flag because there's no longer any opportunity for seccomp to mess with ptrace state before invoking ptrace. Suggested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Cc: x86@kernel.org Cc: Andy Lutomirski <luto@kernel.org> (cherry picked from commit 93e35efb8de45393cf61ed07f7b407629bf698ea) Bug: 119769499 Change-Id: Ie1b9a18360799e68e22f67ce6a819c93433fdeaa [ghackmann@google.com: adjust context] Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | BACKPORT: x86/entry: Get rid of two-phase syscall entry workAndy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I added two-phase syscall entry work back when the entry slow path was very slow. Nowadays, the entry slow path is fast and two-phase entry work serves no purpose. Remove it. Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> (cherry picked from commit c87a85177e7a7f9a9ee32893fb99a928e02fe23a) Bug: 119769499 Change-Id: Ieac4470411f88ca8830794d0322d8d8bb348039e [ghackmann@google.com: - adjust for post-4.4 is_ia32_task() -> in_ia32_syscall() renaming - preserve TF flags fixup in syscall_trace_enter() - keep syscall_trace_enter() exported, since we haven't taken patches to move the calling code from entry_64.S to common.c] Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | BACKPORT: seccomp: Add a seccomp_data parameter secure_computing()Andy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, if arch code wants to supply seccomp_data directly to seccomp (which is generally much faster than having seccomp do it using the syscall_get_xyz() API), it has to use the two-phase seccomp hooks. Add it to the easy hooks, too. Cc: linux-arch@vger.kernel.org Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> (cherry picked from commit 2f275de5d1ed7269913ef9b4c64a13952c0a38e8) Bug: 119769499 Change-Id: I96876ecd8d1743c289ecef6d2deb65361d1f5baa [ghackmann@google.com: drop changes to parisc, tile, and um, which didn't implement seccomp support in this kernel version] Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | BACKPORT: x86/entry/64: Always run ptregs-using syscalls on the slow pathAndy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 64-bit syscalls currently have an optimization in which they are called with partial pt_regs. A small handful require full pt_regs. In the 32-bit and compat cases, I cleaned this up by forcing full pt_regs for all syscalls. The performance hit doesn't really matter as the affected system calls are fundamentally heavy and this is the 32-bit compat case. I want to clean up the 64-bit case as well, but I don't want to hurt fast path performance. To do that, I want to force the syscalls that use pt_regs onto the slow path. This will enable us to make slow path syscalls be real ABI-compliant C functions. Use the new syscall entry qualification machinery for this. 'stub_clone' is now 'stub_clone/ptregs'. The next patch will eliminate the stubs, and we'll just have 'sys_clone/ptregs'. As of this patch, two-phase entry tracing is no longer used. It has served its purpose (namely a huge speedup on some workloads prior to more general opportunistic SYSRET support), and once the dust settles I'll send patches to back it out. The implementation is heavily based on a patch from Brian Gerst: http://lkml.kernel.org/g/1449666173-15366-1-git-send-email-brgerst@gmail.com Originally-From: Brian Gerst <brgerst@gmail.com> Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/b9beda88460bcefec6e7d792bd44eca9b760b0c4.1454022279.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> (cherry picked from commit 302f5b260c322696cbeb962a263a4d2d99864aed) Bug: 119769499 Change-Id: I3e5ac760ef9ca8dcecd8075564118bd10a8be91f [ghackmann@google.com: adjust context] Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | UPSTREAM: x86/syscalls: Add syscall entry qualifiersAndy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will let us specify something like 'sys_xyz/foo' instead of 'sys_xyz' in the syscall table, where the 'foo' qualifier conveys some extra information to the C code. The intent is to allow things like sys_execve/ptregs to indicate that sys_execve() touches pt_regs. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/2de06e33dce62556b3ec662006fcb295504e296e.1454022279.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> (cherry picked from commit cfcbadb49dabb05efa23e1a0f95f3391c0a815bc) Bug: 119769499 Change-Id: I39c3b052526991d7958861712f1e3e9bf453225e Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | UPSTREAM: x86/syscalls: Move compat syscall entry handling into syscalltbl.shAndy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than duplicating the compat entry handling in all consumers of syscalls_BITS.h, handle it directly in syscalltbl.sh. Now we generate entries in syscalls_32.h like: __SYSCALL_I386(5, sys_open) __SYSCALL_I386(5, compat_sys_open) and all of its consumers implicitly get the right entry point. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/b7c2b501dc0e6e43050e916b95807c3e2e16e9bb.1454022279.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> (cherry picked from commit 3e65654e3db6df6aba9c5b895f8b8e6a8d8eb508) Bug: 119769499 Change-Id: I7b2b8206f243e33458fe6cc69affe043aaf177ce Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | UPSTREAM: x86/syscalls: Remove __SYSCALL_COMMON and __SYSCALL_X32Andy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The common/64/x32 distinction has no effect other than determining which kernels actually support the syscall. Move the logic into syscalltbl.sh. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/58d4a95f40e43b894f93288b4a3633963d0ee22e.1454022279.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> (cherry picked from commit 32324ce15ea8cb4c8acc28acb2fd36fabf73e9db) Bug: 119769499 Change-Id: Ib994586ac47f8f4cbc3f746492c2b47b22e03d39 Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | UPSTREAM: x86/syscalls: Refactor syscalltbl.shAndy Lutomirski2018-11-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This splits out the code to emit a syscall line. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1bfcbba991f5cfaa9291ff950a593daa972a205f.1454022279.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> (cherry picked from commit fba324744bfd2a7948a7710d7a021d76dafb9b67) Bug: 119769499 Change-Id: Ie36f49882c4c3a69d87288795e4525353bb05ec5 Signed-off-by: Greg Hackmann <ghackmann@google.com>
* | | | | Merge 4.4.161 into android-4.4Greg Kroah-Hartman2018-10-13
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.161 mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly fbdev/omapfb: fix omapfb_memory_read infoleak x86/vdso: Fix asm constraints on vDSO syscall fallbacks x86/vdso: Fix vDSO syscall fallback asm constraint regression PCI: Reprogram bridge prefetch registers on resume mac80211: fix setting IEEE80211_KEY_FLAG_RX_MGMT for AP mode keys PM / core: Clear the direct_complete flag on errors dm cache: fix resize crash if user doesn't reload cache table xhci: Add missing CAS workaround for Intel Sunrise Point xHCI USB: serial: simple: add Motorola Tetra MTP6550 id of: unittest: Disable interrupt node tests for old world MAC systems ext4: always verify the magic number in xattr blocks cgroup: Fix deadlock in cpu hotplug path ath10k: fix use-after-free in ath10k_wmi_cmd_send_nowait powerpc/fadump: Return error when fadump registration fails ARC: clone syscall to setp r25 as thread pointer ucma: fix a use-after-free in ucma_resolve_ip() ubifs: Check for name being NULL while mounting tcp: increment sk_drops for dropped rx packets tcp: use an RB tree for ooo receive queue tcp: fix a stale ooo_last_skb after a replace tcp: free batches of packets in tcp_prune_ofo_queue() tcp: call tcp_drop() from tcp_data_queue_ofo() tcp: add tcp_ooo_try_coalesce() helper ath10k: fix scan crash due to incorrect length calculation ebtables: arpreply: Add the standard target sanity check Linux 4.4.161 Change-Id: I4c6607d0be0977857f966b048279590470c854c2 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| * | | | x86/vdso: Fix vDSO syscall fallback asm constraint regressionAndy Lutomirski2018-10-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 02e425668f5c9deb42787d10001a3b605993ad15 upstream. When I added the missing memory outputs, I failed to update the index of the first argument (ebx) on 32-bit builds, which broke the fallbacks. Somehow I must have screwed up my testing or gotten lucky. Add another test to cover gettimeofday() as well. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Fixes: 715bd9d12f84 ("x86/vdso: Fix asm constraints on vDSO syscall fallbacks") Link: http://lkml.kernel.org/r/21bd45ab04b6d838278fa5bebfa9163eceffa13c.1538608971.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | x86/vdso: Fix asm constraints on vDSO syscall fallbacksAndy Lutomirski2018-10-13
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 715bd9d12f84d8f5cc8ad21d888f9bc304a8eb0b upstream. The syscall fallbacks in the vDSO have incorrect asm constraints. They are not marked as writing to their outputs -- instead, they are marked as clobbering "memory", which is useless. In particular, gcc is smart enough to know that the timespec parameter hasn't escaped, so a memory clobber doesn't clobber it. And passing a pointer as an asm *input* does not tell gcc that the pointed-to value is changed. Add in the fact that the asm instructions weren't volatile, and gcc was free to omit them entirely unless their sole output (the return value) is used. Which it is (phew!), but that stops happening with some upcoming patches. As a trivial example, the following code: void test_fallback(struct timespec *ts) { vdso_fallback_gettime(CLOCK_MONOTONIC, ts); } compiles to: 00000000000000c0 <test_fallback>: c0: c3 retq To add insult to injury, the RCX and R11 clobbers on 64-bit builds were missing. The "memory" clobber is also unnecessary -- no ordering with respect to other memory operations is needed, but that's going to be fixed in a separate not-for-stable patch. Fixes: 2aae950b21e4 ("x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu") Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/2c0231690551989d2fafa60ed0e7b5cc8b403908.1538422295.git.luto@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | Merge 4.4.160 into android-4.4Greg Kroah-Hartman2018-10-10
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes in 4.4.160 crypto: skcipher - Fix -Wstringop-truncation warnings tsl2550: fix lux1_input error in low light vmci: type promotion bug in qp_host_get_user_memory() x86/numa_emulation: Fix emulated-to-physical node mapping staging: rts5208: fix missing error check on call to rtsx_write_register uwb: hwa-rc: fix memory leak at probe power: vexpress: fix corruption in notifier registration Bluetooth: Add a new Realtek 8723DE ID 0bda:b009 USB: serial: kobil_sct: fix modem-status error handling 6lowpan: iphc: reset mac_header after decompress to fix panic md-cluster: clear another node's suspend_area after the copy is finished media: exynos4-is: Prevent NULL pointer dereference in __isp_video_try_fmt() powerpc/kdump: Handle crashkernel memory reservation failure media: fsl-viu: fix error handling in viu_of_probe() x86/tsc: Add missing header to tsc_msr.c x86/entry/64: Add two more instruction suffixes scsi: target/iscsi: Make iscsit_ta_authentication() respect the output buffer size scsi: klist: Make it safe to use klists in atomic context scsi: ibmvscsi: Improve strings handling usb: wusbcore: security: cast sizeof to int for comparison powerpc/powernv/ioda2: Reduce upper limit for DMA window size alarmtimer: Prevent overflow for relative nanosleep s390/extmem: fix gcc 8 stringop-overflow warning ALSA: snd-aoa: add of_node_put() in error path media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power media: soc_camera: ov772x: correct setting of banding filter media: omap3isp: zero-initialize the isp cam_xclk{a,b} initial data staging: android: ashmem: Fix mmap size validation drivers/tty: add error handling for pcmcia_loop_config media: tm6000: add error handling for dvb_register_adapter ALSA: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge ath10k: protect ath10k_htt_rx_ring_free with rx_ring.lock rndis_wlan: potential buffer overflow in rndis_wlan_auth_indication() wlcore: Add missing PM call for wlcore_cmd_wait_for_event_or_timeout() ARM: mvebu: declare asm symbols as character arrays in pmsu.c HID: hid-ntrig: add error handling for sysfs_create_group scsi: bnx2i: add error handling for ioremap_nocache EDAC, i7core: Fix memleaks and use-after-free on probe and remove ASoC: dapm: Fix potential DAI widget pointer deref when linking DAIs module: exclude SHN_UNDEF symbols from kallsyms api nfsd: fix corrupted reply to badly ordered compound ARM: dts: dra7: fix DCAN node addresses floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl serial: cpm_uart: return immediately from console poll spi: tegra20-slink: explicitly enable/disable clock spi: sh-msiof: Fix invalid SPI use during system suspend spi: sh-msiof: Fix handling of write value for SISTR register spi: rspi: Fix invalid SPI use during system suspend spi: rspi: Fix interrupted DMA transfers USB: fix error handling in usb_driver_claim_interface() USB: handle NULL config in usb_find_alt_setting() slub: make ->cpu_partial unsigned int media: uvcvideo: Support realtek's UVC 1.5 device USB: usbdevfs: sanitize flags more USB: usbdevfs: restore warning for nonsensical flags Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()" USB: remove LPM management from usb_driver_claim_interface() Input: elantech - enable middle button of touchpad on ThinkPad P72 IB/srp: Avoid that sg_reset -d ${srp_device} triggers an infinite loop scsi: target: iscsi: Use bin2hex instead of a re-implementation serial: imx: restore handshaking irq for imx1 arm64: KVM: Tighten guest core register access from userspace ext4: never move the system.data xattr out of the inode body thermal: of-thermal: disable passive polling when thermal zone is disabled net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES e1000: check on netif_running() before calling e1000_up() e1000: ensure to free old tx/rx rings in set_ringparam() hwmon: (ina2xx) fix sysfs shunt resistor read access hwmon: (adt7475) Make adt7475_read_word() return errors i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus arm64: cpufeature: Track 32bit EL0 support arm64: KVM: Sanitize PSTATE.M when being set from userspace media: v4l: event: Prevent freeing event subscriptions while accessed KVM: PPC: Book3S HV: Don't truncate HPTE index in xlate function mac80211: correct use of IEEE80211_VHT_CAP_RXSTBC_X mac80211_hwsim: correct use of IEEE80211_VHT_CAP_RXSTBC_X gpio: adp5588: Fix sleep-in-atomic-context bug mac80211: mesh: fix HWMP sequence numbering to follow standard cfg80211: nl80211_update_ft_ies() to validate NL80211_ATTR_IE RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0 i2c: uniphier: issue STOP only for last message or I2C_M_STOP i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP net: cadence: Fix a sleep-in-atomic-context bug in macb_halt_tx() fs/cifs: don't translate SFM_SLASH (U+F026) to backslash cfg80211: fix a type issue in ieee80211_chandef_to_operating_class() mac80211: fix a race between restart and CSA flows mac80211: Fix station bandwidth setting after channel switch mac80211: shorten the IBSS debug messages tools/vm/slabinfo.c: fix sign-compare warning tools/vm/page-types.c: fix "defined but not used" warning mm: madvise(MADV_DODUMP): allow hugetlbfs pages usb: gadget: fotg210-udc: Fix memory leak of fotg210->ep[i] perf probe powerpc: Ignore SyS symbols irrespective of endianness RDMA/ucma: check fd type in ucma_migrate_id() USB: yurex: Check for truncation in yurex_read() drm/nouveau/TBDdevinit: don't fail when PMU/PRE_OS is missing from VBIOS fs/cifs: suppress a string overflow warning dm thin metadata: try to avoid ever aborting transactions arch/hexagon: fix kernel/dma.c build warning hexagon: modify ffs() and fls() to return int arm64: jump_label.h: use asm_volatile_goto macro instead of "asm goto" r8169: Clear RTL_FLAG_TASK_*_PENDING when clearing RTL_FLAG_TASK_ENABLED s390/qeth: don't dump past end of unknown HW header cifs: read overflow in is_valid_oplock_break() xen/manage: don't complain about an empty value in control/sysrq node xen: avoid crash in disable_hotplug_cpu xen: fix GCC warning and remove duplicate EVTCHN_ROW/EVTCHN_COL usage smb2: fix missing files in root share directory listing ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760 crypto: mxs-dcp - Fix wait logic on chan threads proc: restrict kernel stack dumps to root ocfs2: fix locking for res->tracking and dlm->tracking_list dm thin metadata: fix __udivdi3 undefined on 32-bit Linux 4.4.160 Change-Id: I54d72945f741d6b4442adcd7bc18cb5417accb0f Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>