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trace_xen_mmu_flush_tlb{_all}
commit 45dd9b0666a162f8e4be76096716670cf1741f0e upstream.
Doing an audit of trace events, I discovered two trace events in the xen
subsystem that use a hack to create zero data size trace events. This is not
what trace events are for. Trace events add memory footprint overhead, and
if all you need to do is see if a function is hit or not, simply make that
function noinline and use function tracer filtering.
Worse yet, the hack used was:
__array(char, x, 0)
Which creates a static string of zero in length. There's assumptions about
such constructs in ftrace that this is a dynamic string that is nul
terminated. This is not the case with these tracepoints and can cause
problems in various parts of ftrace.
Nuke the trace events!
Link: http://lkml.kernel.org/r/20180509144605.5a220327@gandalf.local.home
Cc: stable@vger.kernel.org
Fixes: 95a7d76897c1e ("xen/mmu: Use Xen specific TLB flush instead of the generic one.")
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit c7be96af89d4b53211862d8599b2430e8900ed92 upstream.
When running certain database workload on a high-end system with many
CPUs, it was found that spinlock contention in the sigprocmask syscalls
became a significant portion of the overall CPU cycles as shown below.
9.30% 9.30% 905387 dataserver /proc/kcore 0x7fff8163f4d2
[k] _raw_spin_lock_irq
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---_raw_spin_lock_irq
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|--99.34%-- __set_current_blocked
| sigprocmask
| sys_rt_sigprocmask
| system_call_fastpath
| |
| |--50.63%-- __swapcontext
| | |
| | |--99.91%-- upsleepgeneric
| |
| |--49.36%-- __setcontext
| | ktskRun
Looking further into the swapcontext function in glibc, it was found that
the function always call sigprocmask() without checking if there are
changes in the signal mask.
A check was added to the __set_current_blocked() function to avoid taking
the sighand->siglock spinlock if there is no change in the signal mask.
This will prevent unneeded spinlock contention when many threads are
trying to call sigprocmask().
With this patch applied, the spinlock contention in sigprocmask() was
gone.
Link: http://lkml.kernel.org/r/1474979209-11867-1-git-send-email-Waiman.Long@hpe.com
Signed-off-by: Waiman Long <Waiman.Long@hpe.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stas Sergeev <stsp@list.ru>
Cc: Scott J Norton <scott.norton@hpe.com>
Cc: Douglas Hatch <doug.hatch@hpe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 30d6e0a4190d37740e9447e4e4815f06992dd8c3 upstream.
There is code duplicated over all architecture's headers for
futex_atomic_op_inuser. Namely op decoding, access_ok check for uaddr,
and comparison of the result.
Remove this duplication and leave up to the arches only the needed
assembly which is now in arch_futex_atomic_op_inuser.
This effectively distributes the Will Deacon's arm64 fix for undefined
behaviour reported by UBSAN to all architectures. The fix was done in
commit 5f16a046f8e1 (arm64: futex: Fix undefined behaviour with
FUTEX_OP_OPARG_SHIFT usage). Look there for an example dump.
And as suggested by Thomas, check for negative oparg too, because it was
also reported to cause undefined behaviour report.
Note that s390 removed access_ok check in d12a29703 ("s390/uaccess:
remove pointless access_ok() checks") as access_ok there returns true.
We introduce it back to the helper for the sake of simplicity (it gets
optimized away anyway).
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Acked-by: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Reviewed-by: Will Deacon <will.deacon@arm.com> [core/arm64]
Cc: linux-mips@linux-mips.org
Cc: Rich Felker <dalias@libc.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: peterz@infradead.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: sparclinux@vger.kernel.org
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux-s390@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: linux-hexagon@vger.kernel.org
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-snps-arc@lists.infradead.org
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-xtensa@linux-xtensa.org
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: openrisc@lists.librecores.org
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Stafford Horne <shorne@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Richard Henderson <rth@twiddle.net>
Cc: Chris Zankel <chris@zankel.net>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-parisc@vger.kernel.org
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: linux-alpha@vger.kernel.org
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: "David S. Miller" <davem@davemloft.net>
Link: http://lkml.kernel.org/r/20170824073105.3901-1-jslaby@suse.cz
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fscrypt currently only supports AES encryption. However, many low-end
mobile devices have older CPUs that don't have AES instructions, e.g.
the ARMv8 Cryptography Extensions. Currently, user data on such devices
is not encrypted at rest because AES is too slow, even when the NEON
bit-sliced implementation of AES is used. Unfortunately, it is
infeasible to encrypt these devices at all when AES is the only option.
Therefore, this patch updates fscrypt to support the Speck block cipher,
which was recently added to the crypto API. The C implementation of
Speck is not especially fast, but Speck can be implemented very
efficiently with general-purpose vector instructions, e.g. ARM NEON.
For example, on an ARMv7 processor, we measured the NEON-accelerated
Speck128/256-XTS at 69 MB/s for both encryption and decryption, while
AES-256-XTS with the NEON bit-sliced implementation was only 22 MB/s
encryption and 19 MB/s decryption.
There are multiple variants of Speck. This patch only adds support for
Speck128/256, which is the variant with a 128-bit block size and 256-bit
key size -- the same as AES-256. This is believed to be the most secure
variant of Speck, and it's only about 6% slower than Speck128/128.
Speck64/128 would be at least 20% faster because it has 20% rounds, and
it can be even faster on CPUs that can't efficiently do the 64-bit
operations needed for Speck128. However, Speck64's 64-bit block size is
not preferred security-wise. ARM NEON also supports the needed 64-bit
operations even on 32-bit CPUs, resulting in Speck128 being fast enough
for our targeted use cases so far.
The chosen modes of operation are XTS for contents and CTS-CBC for
filenames. These are the same modes of operation that fscrypt defaults
to for AES. Note that as with the other fscrypt modes, Speck will not
be used unless userspace chooses to use it. Nor are any of the existing
modes (which are all AES-based) being removed, of course.
We intentionally don't make CONFIG_FS_ENCRYPTION select
CONFIG_CRYPTO_SPECK, so people will have to enable Speck support
themselves if they need it. This is because we shouldn't bloat the
FS_ENCRYPTION dependencies with every new cipher, especially ones that
aren't recommended for most users. Moreover, CRYPTO_SPECK is just the
generic implementation, which won't be fast enough for many users; in
practice, they'll need to enable CRYPTO_SPECK_NEON to get acceptable
performance.
More details about our choice of Speck can be found in our patches that
added Speck to the crypto API, and the follow-on discussion threads.
We're planning a publication that explains the choice in more detail.
But briefly, we can't use ChaCha20 as we previously proposed, since it
would be insecure to use a stream cipher in this context, with potential
IV reuse during writes on f2fs and/or on wear-leveling flash storage.
We also evaluated many other lightweight and/or ARX-based block ciphers
such as Chaskey-LTS, RC5, LEA, CHAM, Threefish, RC6, NOEKEON, SPARX, and
XTEA. However, all had disadvantages vs. Speck, such as insufficient
performance with NEON, much less published cryptanalysis, or an
insufficient security level. Various design choices in Speck make it
perform better with NEON than competing ciphers while still having a
security margin similar to AES, and in the case of Speck128 also the
same available security levels. Unfortunately, Speck does have some
political baggage attached -- it's an NSA designed cipher, and was
rejected from an ISO standard (though for context, as far as I know none
of the above-mentioned alternatives are ISO standards either).
Nevertheless, we believe it is a good solution to the problem from a
technical perspective.
Certain algorithms constructed from ChaCha or the ChaCha permutation,
such as MEM (Masked Even-Mansour) or HPolyC, may also meet our
performance requirements. However, these are new constructions that
need more time to receive the cryptographic review and acceptance needed
to be confident in their security. HPolyC hasn't been published yet,
and we are concerned that MEM makes stronger assumptions about the
underlying permutation than the ChaCha stream cipher does. In contrast,
the XTS mode of operation is relatively well accepted, and Speck has
over 70 cryptanalysis papers. Of course, these ChaCha-based algorithms
can still be added later if they become ready.
The best known attack on Speck128/256 is a differential cryptanalysis
attack on 25 of 34 rounds with 2^253 time complexity and 2^125 chosen
plaintexts, i.e. only marginally faster than brute force. There is no
known attack on the full 34 rounds.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
(cherry-picked from commit 12d28f79558f2e987c5f3817f89e1ccc0f11a7b5
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt.git master)
(dropped Documentation/filesystems/fscrypt.rst change)
(fixed merge conflict in fs/crypto/keyinfo.c)
(also ported change to fs/ext4/, which isn't using fs/crypto/ in this
kernel version)
Change-Id: I62c632044dfd06a2c5b74c2fb058f9c3b8af0add
Signed-off-by: Eric Biggers <ebiggers@google.com>
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AVI Infoframe provides the aspect ratio and video
identification code information. Add support to read
this from ADV7481 registers and to return it to user space
through an ioctl call.
Change-Id: Ia64fbc736b548633b34a9bd96f7a78700afb3db5
Signed-off-by: Suprith Malligere Shankaregowda <supgow@codeaurora.org>
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Fix the multiple definition issue of msm_timer_get_sclk_ticks
when CONFIG_MSM_BOOT_STATS is disabled.
Change-Id: Id2c263c48cec038be4354894fa57b203a5f764c6
Signed-off-by: Zhiqiang Tu <ztu@codeaurora.org>
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* refs/heads/tmp-46155cc
Linux 4.4.132
perf/x86: Fix possible Spectre-v1 indexing for x86_pmu::event_map()
perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[]
perf/x86/msr: Fix possible Spectre-v1 indexing in the MSR driver
perf/x86/cstate: Fix possible Spectre-v1 indexing for pkg_msr
perf/x86: Fix possible Spectre-v1 indexing for hw_perf_event cache_*
tracing/uprobe_event: Fix strncpy corner case
Revert "Bluetooth: btusb: Fix quirk for Atheros 1525/QCA6174"
atm: zatm: Fix potential Spectre v1
net: atm: Fix potential Spectre v1
can: kvaser_usb: Increase correct stats counter in kvaser_usb_rx_can_msg()
tracing: Fix regex_match_front() to not over compare the test string
libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs
rfkill: gpio: fix memory leak in probe error path
xfrm_user: fix return value from xfrm_user_rcv_msg
f2fs: fix a dead loop in f2fs_fiemap()
bdi: Fix oops in wb_workfn()
tcp: fix TCP_REPAIR_QUEUE bound checking
perf: Remove superfluous allocation error check
soreuseport: initialise timewait reuseport field
dccp: initialize ireq->ir_mark
net: fix uninit-value in __hw_addr_add_ex()
net: initialize skb->peeked when cloning
net: fix rtnh_ok()
netlink: fix uninit-value in netlink_sendmsg
crypto: af_alg - fix possible uninit-value in alg_bind()
ipvs: fix rtnl_lock lockups caused by start_sync_thread
usb: musb: host: fix potential NULL pointer dereference
USB: serial: option: adding support for ublox R410M
USB: serial: option: reimplement interface masking
USB: Accept bulk endpoints with 1024-byte maxpacket
USB: serial: visor: handle potential invalid device configuration
test_firmware: fix setting old custom fw path back on exit, second try
drm/vmwgfx: Fix a buffer object leak
IB/mlx5: Use unlimited rate when static rate is not supported
NET: usb: qmi_wwan: add support for ublox R410M PID 0x90b2
RDMA/mlx5: Protect from shift operand overflow
RDMA/ucma: Allow resolving address w/o specifying source address
xfs: prevent creating negative-sized file via INSERT_RANGE
Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
Input: leds - fix out of bound access
tracepoint: Do not warn on ENOMEM
ALSA: aloop: Add missing cable lock to ctl API callbacks
ALSA: aloop: Mark paused device as inactive
ALSA: seq: Fix races at MIDI encoding in snd_virmidi_output_trigger()
ALSA: pcm: Check PCM state at xfern compat ioctl
USB: serial: option: Add support for Quectel EP06
gpmi-nand: Handle ECC Errors in erased pages
ath10k: rebuild crypto header in rx data frames
ath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode
mac80211: Add RX flag to indicate ICV stripped
mac80211: allow same PN for AMSDU sub-frames
mac80211: allow not sending MIC up from driver for HW crypto
percpu: include linux/sched.h for cond_resched()
KVM: s390: Enable all facility bits that are known good for passthrough
bpf: map_get_next_key to return first key on NULL
perf/core: Fix the perf_cpu_time_max_percent check
goldfish: pipe: ANDROID: mark local functions static
Revert "goldfish: pipe: ANDROID: Allocate memory with GFP_KERNEL."
UPSTREAM: ANDROID: binder: prevent transactions into own process.
goldfish: pipe: ANDROID: Add DMA support
UPSTREAM: f2fs: clear PageError on writepage - part 2
UPSTREAM: f2fs: avoid fsync() failure caused by EAGAIN in writepage()
ANDROID: build.config: enforce trace_printk check
ANDROID: x86_64_cuttlefish_defconfig: Disable KPTI
UPSTREAM: mac80211: ibss: Fix channel type enum in ieee80211_sta_join_ibss()
UPSTREAM: mac80211: Fix clang warning about constant operand in logical operation
UPSTREAM: nl80211: Fix enum type of variable in nl80211_put_sta_rate()
UPSTREAM: sysfs: remove signedness from sysfs_get_dirent
UPSTREAM: tracing: Use cpumask_available() to check if cpumask variable may be used
BACKPORT: clocksource: Use GENMASK_ULL in definition of CLOCKSOURCE_MASK
UPSTREAM: netpoll: Fix device name check in netpoll_setup()
FROMLIST: staging: Fix sparse warnings in vsoc driver.
FROMLIST: staging: vsoc: Fix a i386-randconfig warning.
FROMLIST: staging: vsoc: Create wc kernel mapping for region shm.
Revert "goldfish: pipe: ANDROID: remove a redundant target"
goldfish: pipe: ANDROID: Replace writel with gf_write_ptr
goldfish: pipe: ANDROID: Use dev_ logging instead of pr_
goldfish: pipe: ANDROID: fix checkpatch warnings
goldfish: pipe: ANDROID: Update module license
Conflicts:
drivers/net/wireless/ath/ath10k/core.c
drivers/net/wireless/ath/ath10k/core.h
drivers/net/wireless/ath/ath10k/htt_rx.c
Change-Id: If2ede1dea6a07b3fd498724e83071fd547170e1c
[spathi@codeaurora.org: resolved compilation errors in ath10k
by rebuilding crypto header in rx data frames]
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
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Changes in 4.4.132
perf/core: Fix the perf_cpu_time_max_percent check
bpf: map_get_next_key to return first key on NULL
KVM: s390: Enable all facility bits that are known good for passthrough
percpu: include linux/sched.h for cond_resched()
mac80211: allow not sending MIC up from driver for HW crypto
mac80211: allow same PN for AMSDU sub-frames
mac80211: Add RX flag to indicate ICV stripped
ath10k: fix rfc1042 header retrieval in QCA4019 with eth decap mode
ath10k: rebuild crypto header in rx data frames
gpmi-nand: Handle ECC Errors in erased pages
USB: serial: option: Add support for Quectel EP06
ALSA: pcm: Check PCM state at xfern compat ioctl
ALSA: seq: Fix races at MIDI encoding in snd_virmidi_output_trigger()
ALSA: aloop: Mark paused device as inactive
ALSA: aloop: Add missing cable lock to ctl API callbacks
tracepoint: Do not warn on ENOMEM
Input: leds - fix out of bound access
Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
xfs: prevent creating negative-sized file via INSERT_RANGE
RDMA/ucma: Allow resolving address w/o specifying source address
RDMA/mlx5: Protect from shift operand overflow
NET: usb: qmi_wwan: add support for ublox R410M PID 0x90b2
IB/mlx5: Use unlimited rate when static rate is not supported
drm/vmwgfx: Fix a buffer object leak
test_firmware: fix setting old custom fw path back on exit, second try
USB: serial: visor: handle potential invalid device configuration
USB: Accept bulk endpoints with 1024-byte maxpacket
USB: serial: option: reimplement interface masking
USB: serial: option: adding support for ublox R410M
usb: musb: host: fix potential NULL pointer dereference
ipvs: fix rtnl_lock lockups caused by start_sync_thread
crypto: af_alg - fix possible uninit-value in alg_bind()
netlink: fix uninit-value in netlink_sendmsg
net: fix rtnh_ok()
net: initialize skb->peeked when cloning
net: fix uninit-value in __hw_addr_add_ex()
dccp: initialize ireq->ir_mark
soreuseport: initialise timewait reuseport field
perf: Remove superfluous allocation error check
tcp: fix TCP_REPAIR_QUEUE bound checking
bdi: Fix oops in wb_workfn()
f2fs: fix a dead loop in f2fs_fiemap()
xfrm_user: fix return value from xfrm_user_rcv_msg
rfkill: gpio: fix memory leak in probe error path
libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs
tracing: Fix regex_match_front() to not over compare the test string
can: kvaser_usb: Increase correct stats counter in kvaser_usb_rx_can_msg()
net: atm: Fix potential Spectre v1
atm: zatm: Fix potential Spectre v1
Revert "Bluetooth: btusb: Fix quirk for Atheros 1525/QCA6174"
tracing/uprobe_event: Fix strncpy corner case
perf/x86: Fix possible Spectre-v1 indexing for hw_perf_event cache_*
perf/x86/cstate: Fix possible Spectre-v1 indexing for pkg_msr
perf/x86/msr: Fix possible Spectre-v1 indexing in the MSR driver
perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[]
perf/x86: Fix possible Spectre-v1 indexing for x86_pmu::event_map()
Linux 4.4.132
Change-Id: I66c21e374dff5a5735f1c5958021612387c635bf
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 3099a52918937ab86ec47038ad80d377ba16c531 upstream.
syzbot reported an uninit-value in inet_csk_bind_conflict() [1]
It turns out we never propagated sk->sk_reuseport into timewait socket.
[1]
BUG: KMSAN: uninit-value in inet_csk_bind_conflict+0x5f9/0x990 net/ipv4/inet_connection_sock.c:151
CPU: 1 PID: 3589 Comm: syzkaller008242 Not tainted 4.16.0+ #82
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x185/0x1d0 lib/dump_stack.c:53
kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
__msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676
inet_csk_bind_conflict+0x5f9/0x990 net/ipv4/inet_connection_sock.c:151
inet_csk_get_port+0x1d28/0x1e40 net/ipv4/inet_connection_sock.c:320
inet6_bind+0x121c/0x1820 net/ipv6/af_inet6.c:399
SYSC_bind+0x3f2/0x4b0 net/socket.c:1474
SyS_bind+0x54/0x80 net/socket.c:1460
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x4416e9
RSP: 002b:00007ffce6d15c88 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0100000000000000 RCX: 00000000004416e9
RDX: 000000000000001c RSI: 0000000020402000 RDI: 0000000000000004
RBP: 0000000000000000 R08: 00000000e6d15e08 R09: 00000000e6d15e08
R10: 0000000000000004 R11: 0000000000000217 R12: 0000000000009478
R13: 00000000006cd448 R14: 0000000000000000 R15: 0000000000000000
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
__msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:521
tcp_time_wait+0xf17/0xf50 net/ipv4/tcp_minisocks.c:283
tcp_rcv_state_process+0xebe/0x6490 net/ipv4/tcp_input.c:6003
tcp_v6_do_rcv+0x11dd/0x1d90 net/ipv6/tcp_ipv6.c:1331
sk_backlog_rcv include/net/sock.h:908 [inline]
__release_sock+0x2d6/0x680 net/core/sock.c:2271
release_sock+0x97/0x2a0 net/core/sock.c:2786
tcp_close+0x277/0x18f0 net/ipv4/tcp.c:2269
inet_release+0x240/0x2a0 net/ipv4/af_inet.c:427
inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:435
sock_release net/socket.c:595 [inline]
sock_close+0xe0/0x300 net/socket.c:1149
__fput+0x49e/0xa10 fs/file_table.c:209
____fput+0x37/0x40 fs/file_table.c:243
task_work_run+0x243/0x2c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x10e1/0x38d0 kernel/exit.c:867
do_group_exit+0x1a0/0x360 kernel/exit.c:970
SYSC_exit_group+0x21/0x30 kernel/exit.c:981
SyS_exit_group+0x25/0x30 kernel/exit.c:979
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Uninit was stored to memory at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
kmsan_save_stack mm/kmsan/kmsan.c:293 [inline]
kmsan_internal_chain_origin+0x12b/0x210 mm/kmsan/kmsan.c:684
__msan_chain_origin+0x69/0xc0 mm/kmsan/kmsan_instr.c:521
inet_twsk_alloc+0xaef/0xc00 net/ipv4/inet_timewait_sock.c:182
tcp_time_wait+0xd9/0xf50 net/ipv4/tcp_minisocks.c:258
tcp_rcv_state_process+0xebe/0x6490 net/ipv4/tcp_input.c:6003
tcp_v6_do_rcv+0x11dd/0x1d90 net/ipv6/tcp_ipv6.c:1331
sk_backlog_rcv include/net/sock.h:908 [inline]
__release_sock+0x2d6/0x680 net/core/sock.c:2271
release_sock+0x97/0x2a0 net/core/sock.c:2786
tcp_close+0x277/0x18f0 net/ipv4/tcp.c:2269
inet_release+0x240/0x2a0 net/ipv4/af_inet.c:427
inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:435
sock_release net/socket.c:595 [inline]
sock_close+0xe0/0x300 net/socket.c:1149
__fput+0x49e/0xa10 fs/file_table.c:209
____fput+0x37/0x40 fs/file_table.c:243
task_work_run+0x243/0x2c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x10e1/0x38d0 kernel/exit.c:867
do_group_exit+0x1a0/0x360 kernel/exit.c:970
SYSC_exit_group+0x21/0x30 kernel/exit.c:981
SyS_exit_group+0x25/0x30 kernel/exit.c:979
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:188
kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:314
kmem_cache_alloc+0xaab/0xb90 mm/slub.c:2756
inet_twsk_alloc+0x13b/0xc00 net/ipv4/inet_timewait_sock.c:163
tcp_time_wait+0xd9/0xf50 net/ipv4/tcp_minisocks.c:258
tcp_rcv_state_process+0xebe/0x6490 net/ipv4/tcp_input.c:6003
tcp_v6_do_rcv+0x11dd/0x1d90 net/ipv6/tcp_ipv6.c:1331
sk_backlog_rcv include/net/sock.h:908 [inline]
__release_sock+0x2d6/0x680 net/core/sock.c:2271
release_sock+0x97/0x2a0 net/core/sock.c:2786
tcp_close+0x277/0x18f0 net/ipv4/tcp.c:2269
inet_release+0x240/0x2a0 net/ipv4/af_inet.c:427
inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:435
sock_release net/socket.c:595 [inline]
sock_close+0xe0/0x300 net/socket.c:1149
__fput+0x49e/0xa10 fs/file_table.c:209
____fput+0x37/0x40 fs/file_table.c:243
task_work_run+0x243/0x2c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x10e1/0x38d0 kernel/exit.c:867
do_group_exit+0x1a0/0x360 kernel/exit.c:970
SYSC_exit_group+0x21/0x30 kernel/exit.c:981
SyS_exit_group+0x25/0x30 kernel/exit.c:979
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Fixes: da5e36308d9f ("soreuseport: TCP/IPv4 implementation")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b1993a2de12c9e75c35729e2ffbc3a92d50c0d31 upstream.
syzbot reported :
BUG: KMSAN: uninit-value in rtnh_ok include/net/nexthop.h:11 [inline]
BUG: KMSAN: uninit-value in fib_count_nexthops net/ipv4/fib_semantics.c:469 [inline]
BUG: KMSAN: uninit-value in fib_create_info+0x554/0x8d20 net/ipv4/fib_semantics.c:1091
@remaining is an integer, coming from user space.
If it is negative we want rtnh_ok() to return false.
Fixes: 4e902c57417c ("[IPv4]: FIB configuration using struct fib_config")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit cef0acd4d7d4811d2d19cd0195031bf0dfe41249 upstream.
Add a flag that indicates that the WEP ICV was stripped from an
RX packet, allowing the device to not transfer that if it's
already checked.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f631a77ba920f7153a1094d09cd8f2ebbffd0328 upstream.
Some hardware (iwlwifi an example) de-aggregate AMSDUs and copy the IV
as is to the generated MPDUs, so the same PN appears in multiple
packets without being a replay attack. Allow driver to explicitly
indicate that a frame is allowed to have the same PN as the previous
frame.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f980ebc058c2fa2a552e495db1de0b330082ab70 upstream.
When HW crypto is used, there's no need for the CCMP/GCMP MIC to
be available to mac80211, and the hardware might have removed it
already after checking. The MIC is also useless to have when the
frame is already decrypted, so allow indicating that it's not
present.
Since we are running out of bits in mac80211_rx_flags, make
the flags field a u64.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This change improves the pipe performance by removing unnesessary
memory copying.
Bug: 72717639
Bug: 66884503
Change-Id: I0d279f682039e411faf4212713d82ec355c3e9ee
Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Lingfeng Yang <lfy@google.com>
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sysfs_get_dirent is usually invoked with a string literal, which
have the type char[]. While the toplevel Makefile
disables -Wpointer-sign, other Makefiles like
arch/x86/boot/compressed/Makefile
redefine KBUILD_CFLAGS. Fixes the warning:
In file included from arch/x86/boot/compressed/kaslr.c:17:
In file included from ./include/linux/module.h:17:
In file included from ./include/linux/kobject.h:21:
./include/linux/sysfs.h:517:37: warning: passing 'const unsigned char *'
to parameter of
type 'const char *' converts between pointers to integer types
with different sign
[-Wpointer-sign]
return kernfs_find_and_get(parent, name);
^~~~
./include/linux/kernfs.h:462:57: note: passing argument to parameter
'name' here
kernfs_find_and_get(struct kernfs_node *kn, const char *name)
^
Signed-off-by: Nick Desaulniers <nick.desaulniers@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 89cf2a20c3f13dbb4c15a0c6d2e390e700992173)
Bug: 78886293
Change-Id: Ic03f7b132fbf67b3543462448aa3f3633eae49a6
Signed-off-by: Alistair Strachan <astrachan@google.com>
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Besides reusing existing code this removes the special case handling
for 64-bit masks, which causes clang to raise a shift count overflow
warning due to https://bugs.llvm.org//show_bug.cgi?id=10030.
Suggested-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Cc: Grant Grundler <grundler@chromium.org>
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Michael Davidson <md@google.com>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20170418233037.70990-1-mka@chromium.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
(cherry picked from commit 0773cea37470f8e080c510fe720fc356cf35df3a)
[astrachan: minor re-diff; (cycle_t) vs (u64) cast]
Bug: 78886293
Change-Id: I97df9621cc65bba74a5086c2c35c2224b559a156
Signed-off-by: Alistair Strachan <astrachan@google.com>
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Upstream commit aced43ce780dc5e683b3de00ce9fb3db7d28e1d3 ("cfg80211: Call
reg_notifier for self managed hints conditionally") adds support
for processing user cell_base hints when wiphy is self managed. Add
backport flag for the same.
Change-Id: I44e083f4346cc95eb2f80eeec7d56f305e7ecce0
CRs-Fixed: 2201959
Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
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Allow the LPASS status check API to return
the proper status code.
CRs-fixed: 2126725
Change-Id: I6c34036ec30c7d4ce8aaefb70d19b04b211f7355
Signed-off-by: Derek Chen <chenche@codeaurora.org>
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This reverts commit 98d5572dd2ec954f516f9fd5b55dcef2b09a1d7c. This API
no more needed since user would use existing kernel API.
Change-Id: I2d5a19fc9159da5ef7020cb1808b704b0344087e
CRs-Fixed: 2201959
Signed-off-by: Amar Singhal <asinghal@codeaurora.org>
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The patch adds new requested log codes to diag mask.
Change-Id: I4124e55077ae63b9c0c349feed409851108261d3
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>
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Add rpm controlled clocks for msm8996 frontend virtual clock
which need the remote flag.
Change-Id: I146ac01522aa13033c959f390667d8098ee333b7
Signed-off-by: Zhiqiang Tu <ztu@codeaurora.org>
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This reverts commit c611d78437adeb9299d8be3f7be78b9c153152e5.
Remove helper function to return controller id.
Change-Id: Iadc085bf1dd9553c0805511f3cbafabdec8744f5
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
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This reverts commit 039bcf340ea35f1e5c4a81f290455570097d7d62.
Add back helper APIs to return dcba dma address.
Change-Id: Ia65e98691d1a3c241694f07215c12605832f574d
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
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This reverts commit 9c1d883952b8430994a302d10aab2bc8130bcd97.
Add back helper API to return dcba dma address.
Change-Id: I769c42d53f19bbefb65d491823911b39ec620751
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
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* refs/heads/tmp-d5d6526
Linux 4.4.131
serial: mctrl_gpio: Add missing module license
serial: mctrl_gpio: export mctrl_gpio_disable_ms and mctrl_gpio_init
x86/smpboot: Don't use mwait_play_dead() on AMD systems
x86/ipc: Fix x32 version of shmid64_ds and msqid64_ds
libceph: validate con->state at the top of try_write()
ASoC: fsl_esai: Fix divisor calculation failure at lower ratio
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
ARM: amba: Fix race condition with driver_override
ARM: amba: Make driver_override output consistent with other buses
scsi: sd: Defer spinning up drive while SANITIZE is in progress
kobject: don't use WARN for registration failures
mtd: cfi: cmdset_0002: Do not allow read/write to suspend erase block.
mtd: cfi: cmdset_0001: Workaround Micron Erase suspend bug.
mtd: cfi: cmdset_0001: Do not allow read/write to suspend erase block.
ALSA: hda/realtek - Add some fixes for ALC233
ALSA: hda: Hardening for potential Spectre v1
ALSA: seq: oss: Hardening for potential Spectre v1
ALSA: seq: oss: Fix unbalanced use lock for synth MIDI device
ALSA: core: Report audio_tstamp in snd_pcm_sync_ptr
ALSA: control: Hardening for potential Spectre v1
ALSA: rme9652: Hardening for potential Spectre v1
ALSA: hdspm: Hardening for potential Spectre v1
ALSA: asihpi: Hardening for potential Spectre v1
ALSA: opl3: Hardening for potential Spectre v1
tty: Use __GFP_NOFAIL for tty_ldisc_get()
tty: n_gsm: Fix DLCI handling for ADM mode if debug & 2 is not set
tty: n_gsm: Fix long delays with control frame timeouts in ADM mode
tty: Don't call panic() at tty_ldisc_init()
drm/virtio: fix vq wait_event condition
virtio_console: free buffers after reset
virtio: add ability to iterate over vqs
ALSA: usb-audio: Skip broken EU on Dell dock USB-audio
USB: Increment wakeup count on remote wakeup.
usb: core: Add quirk for HP v222w 16GB Mini
USB: serial: cp210x: add ID for NI USB serial console
USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster
USB: serial: simple: add libtransistor console
usbip: vhci_hcd: Fix usb device and sockfd leaks
usbip: usbip_host: fix to hold parent lock for device_attach() calls
ext4: fix bitmap position validation
ext4: add validity checks for bitmap block numbers
ext4: set h_journal if there is a failure starting a reserved handle
ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS
goldfish: pipe: ANDROID: Allocate memory with GFP_KERNEL.
goldfish: pipe: ANDROID: Do not crash
goldfish: pipe: ANDROID: remove redundant casting
goldfish: pipe: ANDROID: Add 'pipe' to pipe functions
goldfish: pipe: ANDROID: fix whitespace
goldfish: pipe: ANDROID: rename global variables
goldfish: pipe: ANDROID: remove a redundant target
goldfish: pipe: ANDROID: add blank lines
goldfish: pipe: ANDROID: replace 'BUG_ON' with 'BUILD_BUG_ON'
goldfish: pipe: ANDROID: use the 'BIT' macro for wakeup flags
goldfish: pipe: ANDROID: fix logging format strings
Linux 4.4.130
s390/uprobes: implement arch_uretprobe_is_alive()
s390/cio: update chpid descriptor after resource accessibility event
cdrom: information leak in cdrom_ioctl_media_changed()
scsi: mptsas: Disable WRITE SAME
ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy
net: af_packet: fix race in PACKET_{R|T}X_RING
tcp: md5: reject TCP_MD5SIG or TCP_MD5SIG_EXT on established sockets
net: fix deadlock while clearing neighbor proxy table
tipc: add policy for TIPC_NLA_NET_ADDR
llc: fix NULL pointer deref for SOCK_ZAPPED
llc: hold llc_sap before release_sock()
sctp: do not check port in sctp_inet6_cmp_addr
vlan: Fix reading memory beyond skb->tail in skb_vlan_tagged_multi
pppoe: check sockaddr length in pppoe_connect()
packet: fix bitfield update race
team: fix netconsole setup over team
team: avoid adding twice the same option to the event list
tcp: don't read out-of-bounds opsize
llc: delete timers synchronously in llc_sk_free()
net: validate attribute sizes in neigh_dump_table()
l2tp: check sockaddr length in pppol2tp_connect()
KEYS: DNS: limit the length of option strings
bonding: do not set slave_dev npinfo before slave_enable_netpoll in bond_enslave
s390: correct module section names for expoline code revert
s390: correct nospec auto detection init order
s390: add sysfs attributes for spectre
s390: report spectre mitigation via syslog
s390: add automatic detection of the spectre defense
s390: move nobp parameter functions to nospec-branch.c
s390/entry.S: fix spurious zeroing of r0
s390: do not bypass BPENTER for interrupt system calls
s390: Replace IS_ENABLED(EXPOLINE_*) with IS_ENABLED(CONFIG_EXPOLINE_*)
s390: introduce execute-trampolines for branches
s390: run user space and KVM guests with modified branch prediction
s390: add options to change branch prediction behaviour for the kernel
s390/alternative: use a copy of the facility bit mask
s390: add optimized array_index_mask_nospec
s390: scrub registers on kernel entry and KVM exit
KVM: s390: wire up bpb feature
s390: enable CPU alternatives unconditionally
s390: introduce CPU alternatives
Revert "ath10k: send (re)assoc peer command when NSS changed"
jbd2: fix use after free in kjournald2()
ath9k_hw: check if the chip failed to wake up
Input: drv260x - fix initializing overdrive voltage
r8152: add Linksys USB3GIGV1 id
staging: ion : Donnot wakeup kswapd in ion system alloc
perf: Return proper values for user stack errors
x86/tsc: Prevent 32bit truncation in calc_hpet_ref()
cifs: do not allow creating sockets except with SMB1 posix exensions
UPSTREAM: tracing: always define trace_{irq,preempt}_{enable_disable}
ANDROID: staging: ion: Obey kptr_restrict
ANDROID: sdcardfs: Set s_root to NULL after putting
ANDROID: sdcardfs: d_make_root calls iput
ANDROID: sdcardfs: Check for private data earlier
Conflicts:
drivers/staging/android/ion/ion.c
drivers/staging/android/ion/ion_cma_heap.c
drivers/staging/android/ion/ion_system_heap.c
Change-Id: I8155103b3787bb800f85291cc7378a8e29a8436f
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
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Changes in 4.4.131
ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS
ext4: set h_journal if there is a failure starting a reserved handle
ext4: add validity checks for bitmap block numbers
ext4: fix bitmap position validation
usbip: usbip_host: fix to hold parent lock for device_attach() calls
usbip: vhci_hcd: Fix usb device and sockfd leaks
USB: serial: simple: add libtransistor console
USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster
USB: serial: cp210x: add ID for NI USB serial console
usb: core: Add quirk for HP v222w 16GB Mini
USB: Increment wakeup count on remote wakeup.
ALSA: usb-audio: Skip broken EU on Dell dock USB-audio
virtio: add ability to iterate over vqs
virtio_console: free buffers after reset
drm/virtio: fix vq wait_event condition
tty: Don't call panic() at tty_ldisc_init()
tty: n_gsm: Fix long delays with control frame timeouts in ADM mode
tty: n_gsm: Fix DLCI handling for ADM mode if debug & 2 is not set
tty: Use __GFP_NOFAIL for tty_ldisc_get()
ALSA: opl3: Hardening for potential Spectre v1
ALSA: asihpi: Hardening for potential Spectre v1
ALSA: hdspm: Hardening for potential Spectre v1
ALSA: rme9652: Hardening for potential Spectre v1
ALSA: control: Hardening for potential Spectre v1
ALSA: core: Report audio_tstamp in snd_pcm_sync_ptr
ALSA: seq: oss: Fix unbalanced use lock for synth MIDI device
ALSA: seq: oss: Hardening for potential Spectre v1
ALSA: hda: Hardening for potential Spectre v1
ALSA: hda/realtek - Add some fixes for ALC233
mtd: cfi: cmdset_0001: Do not allow read/write to suspend erase block.
mtd: cfi: cmdset_0001: Workaround Micron Erase suspend bug.
mtd: cfi: cmdset_0002: Do not allow read/write to suspend erase block.
kobject: don't use WARN for registration failures
scsi: sd: Defer spinning up drive while SANITIZE is in progress
ARM: amba: Make driver_override output consistent with other buses
ARM: amba: Fix race condition with driver_override
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
ASoC: fsl_esai: Fix divisor calculation failure at lower ratio
libceph: validate con->state at the top of try_write()
x86/ipc: Fix x32 version of shmid64_ds and msqid64_ds
x86/smpboot: Don't use mwait_play_dead() on AMD systems
serial: mctrl_gpio: export mctrl_gpio_disable_ms and mctrl_gpio_init
serial: mctrl_gpio: Add missing module license
Linux 4.4.131
Change-Id: I8be9780b3f588b6ca9499b2f31ee4be0dbc9ef77
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 6510bbc88e3258631831ade49033537081950605 upstream.
Currently it is possible to read and/or write to suspend EB's.
Writing /dev/mtdX or /dev/mtdblockX from several processes may
break the flash state machine.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 088e861edffb84879cf0c0d1b02eda078c3a0ffe upstream.
As recently Smatch suggested, a few places in ALSA control core codes
may expand the array directly from the user-space value with
speculation:
sound/core/control.c:1003 snd_ctl_elem_lock() warn: potential spectre issue 'kctl->vd'
sound/core/control.c:1031 snd_ctl_elem_unlock() warn: potential spectre issue 'kctl->vd'
sound/core/control.c:844 snd_ctl_elem_info() warn: potential spectre issue 'kctl->vd'
sound/core/control.c:891 snd_ctl_elem_read() warn: potential spectre issue 'kctl->vd'
sound/core/control.c:939 snd_ctl_elem_write() warn: potential spectre issue 'kctl->vd'
Although all these seem doing only the first load without further
reference, we may want to stay in a safer side, so hardening with
array_index_nospec() would still make sense.
In this patch, we put array_index_nospec() to the common
snd_ctl_get_ioff*() helpers instead of each caller. These helpers are
also referred from some drivers, too, and basically all usages are to
calculate the array index from the user-space value, hence it's better
to cover there.
BugLink: https://marc.info/?l=linux-kernel&m=152411496503418&w=2
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 903f9db10f18f735e62ba447147b6c434b6af003 upstream.
syzbot is reporting kernel panic [1] triggered by memory allocation failure
at tty_ldisc_get() from tty_ldisc_init(). But since both tty_ldisc_get()
and caller of tty_ldisc_init() can cleanly handle errors, tty_ldisc_init()
does not need to call panic() when tty_ldisc_get() failed.
[1] https://syzkaller.appspot.com/bug?id=883431818e036ae6a9981156a64b821110f39187
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 24a7e4d20783c0514850f24a5c41ede46ab058f0 upstream.
For cleanup it's helpful to be able to simply scan all vqs and discard
all data. Add an iterator to do that.
Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.130
cifs: do not allow creating sockets except with SMB1 posix exensions
x86/tsc: Prevent 32bit truncation in calc_hpet_ref()
perf: Return proper values for user stack errors
staging: ion : Donnot wakeup kswapd in ion system alloc
r8152: add Linksys USB3GIGV1 id
Input: drv260x - fix initializing overdrive voltage
ath9k_hw: check if the chip failed to wake up
jbd2: fix use after free in kjournald2()
Revert "ath10k: send (re)assoc peer command when NSS changed"
s390: introduce CPU alternatives
s390: enable CPU alternatives unconditionally
KVM: s390: wire up bpb feature
s390: scrub registers on kernel entry and KVM exit
s390: add optimized array_index_mask_nospec
s390/alternative: use a copy of the facility bit mask
s390: add options to change branch prediction behaviour for the kernel
s390: run user space and KVM guests with modified branch prediction
s390: introduce execute-trampolines for branches
s390: Replace IS_ENABLED(EXPOLINE_*) with IS_ENABLED(CONFIG_EXPOLINE_*)
s390: do not bypass BPENTER for interrupt system calls
s390/entry.S: fix spurious zeroing of r0
s390: move nobp parameter functions to nospec-branch.c
s390: add automatic detection of the spectre defense
s390: report spectre mitigation via syslog
s390: add sysfs attributes for spectre
s390: correct nospec auto detection init order
s390: correct module section names for expoline code revert
bonding: do not set slave_dev npinfo before slave_enable_netpoll in bond_enslave
KEYS: DNS: limit the length of option strings
l2tp: check sockaddr length in pppol2tp_connect()
net: validate attribute sizes in neigh_dump_table()
llc: delete timers synchronously in llc_sk_free()
tcp: don't read out-of-bounds opsize
team: avoid adding twice the same option to the event list
team: fix netconsole setup over team
packet: fix bitfield update race
pppoe: check sockaddr length in pppoe_connect()
vlan: Fix reading memory beyond skb->tail in skb_vlan_tagged_multi
sctp: do not check port in sctp_inet6_cmp_addr
llc: hold llc_sap before release_sock()
llc: fix NULL pointer deref for SOCK_ZAPPED
tipc: add policy for TIPC_NLA_NET_ADDR
net: fix deadlock while clearing neighbor proxy table
tcp: md5: reject TCP_MD5SIG or TCP_MD5SIG_EXT on established sockets
net: af_packet: fix race in PACKET_{R|T}X_RING
ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy
scsi: mptsas: Disable WRITE SAME
cdrom: information leak in cdrom_ioctl_media_changed()
s390/cio: update chpid descriptor after resource accessibility event
s390/uprobes: implement arch_uretprobe_is_alive()
Linux 4.4.130
Change-Id: I58646180c70ac61da3e2a602085760881d914eb5
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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[ Upstream commit 7ce2367254e84753bceb07327aaf5c953cfce117 ]
Syzkaller spotted an old bug which leads to reading skb beyond tail by 4
bytes on vlan tagged packets.
This is caused because skb_vlan_tagged_multi() did not check
skb_headlen.
BUG: KMSAN: uninit-value in eth_type_vlan include/linux/if_vlan.h:283 [inline]
BUG: KMSAN: uninit-value in skb_vlan_tagged_multi include/linux/if_vlan.h:656 [inline]
BUG: KMSAN: uninit-value in vlan_features_check include/linux/if_vlan.h:672 [inline]
BUG: KMSAN: uninit-value in dflt_features_check net/core/dev.c:2949 [inline]
BUG: KMSAN: uninit-value in netif_skb_features+0xd1b/0xdc0 net/core/dev.c:3009
CPU: 1 PID: 3582 Comm: syzkaller435149 Not tainted 4.16.0+ #82
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x185/0x1d0 lib/dump_stack.c:53
kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
__msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:676
eth_type_vlan include/linux/if_vlan.h:283 [inline]
skb_vlan_tagged_multi include/linux/if_vlan.h:656 [inline]
vlan_features_check include/linux/if_vlan.h:672 [inline]
dflt_features_check net/core/dev.c:2949 [inline]
netif_skb_features+0xd1b/0xdc0 net/core/dev.c:3009
validate_xmit_skb+0x89/0x1320 net/core/dev.c:3084
__dev_queue_xmit+0x1cb2/0x2b60 net/core/dev.c:3549
dev_queue_xmit+0x4b/0x60 net/core/dev.c:3590
packet_snd net/packet/af_packet.c:2944 [inline]
packet_sendmsg+0x7c57/0x8a10 net/packet/af_packet.c:2969
sock_sendmsg_nosec net/socket.c:630 [inline]
sock_sendmsg net/socket.c:640 [inline]
sock_write_iter+0x3b9/0x470 net/socket.c:909
do_iter_readv_writev+0x7bb/0x970 include/linux/fs.h:1776
do_iter_write+0x30d/0xd40 fs/read_write.c:932
vfs_writev fs/read_write.c:977 [inline]
do_writev+0x3c9/0x830 fs/read_write.c:1012
SYSC_writev+0x9b/0xb0 fs/read_write.c:1085
SyS_writev+0x56/0x80 fs/read_write.c:1082
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x43ffa9
RSP: 002b:00007fff2cff3948 EFLAGS: 00000217 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ffa9
RDX: 0000000000000001 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018d0
R13: 0000000000401960 R14: 0000000000000000 R15: 0000000000000000
Uninit was created at:
kmsan_save_stack_with_flags mm/kmsan/kmsan.c:278 [inline]
kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:188
kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:314
kmsan_slab_alloc+0x11/0x20 mm/kmsan/kmsan.c:321
slab_post_alloc_hook mm/slab.h:445 [inline]
slab_alloc_node mm/slub.c:2737 [inline]
__kmalloc_node_track_caller+0xaed/0x11c0 mm/slub.c:4369
__kmalloc_reserve net/core/skbuff.c:138 [inline]
__alloc_skb+0x2cf/0x9f0 net/core/skbuff.c:206
alloc_skb include/linux/skbuff.h:984 [inline]
alloc_skb_with_frags+0x1d4/0xb20 net/core/skbuff.c:5234
sock_alloc_send_pskb+0xb56/0x1190 net/core/sock.c:2085
packet_alloc_skb net/packet/af_packet.c:2803 [inline]
packet_snd net/packet/af_packet.c:2894 [inline]
packet_sendmsg+0x6444/0x8a10 net/packet/af_packet.c:2969
sock_sendmsg_nosec net/socket.c:630 [inline]
sock_sendmsg net/socket.c:640 [inline]
sock_write_iter+0x3b9/0x470 net/socket.c:909
do_iter_readv_writev+0x7bb/0x970 include/linux/fs.h:1776
do_iter_write+0x30d/0xd40 fs/read_write.c:932
vfs_writev fs/read_write.c:977 [inline]
do_writev+0x3c9/0x830 fs/read_write.c:1012
SYSC_writev+0x9b/0xb0 fs/read_write.c:1085
SyS_writev+0x56/0x80 fs/read_write.c:1082
do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Fixes: 58e998c6d239 ("offloading: Force software GSO for multiple vlan tags.")
Reported-and-tested-by: syzbot+0bbe42c764feafa82c5a@syzkaller.appspotmail.com
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit b905ef9ab90115d001c1658259af4b1c65088779 ]
The connection timers of an llc sock could be still flying
after we delete them in llc_sk_free(), and even possibly
after we free the sock. We could just wait synchronously
here in case of troubles.
Note, I leave other call paths as they are, since they may
not have to wait, at least we can change them to synchronously
when needed.
Also, move the code to net/llc/llc_conn.c, which is apparently
a better place.
Reported-by: <syzbot+f922284c18ea23a8e457@syzkaller.appspotmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 35b3fde6203b932b2b1a5b53b3d8808abc9c4f60 ]
The new firmware interfaces for branch prediction behaviour changes
are transparently available for the guest. Nevertheless, there is
new state attached that should be migrated and properly resetted.
Provide a mechanism for handling reset, migration and VSIE.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
[Changed capability number to 152. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We get a build error in the irqsoff tracer in some configurations:
kernel/trace/trace_irqsoff.c: In function 'trace_preempt_on':
kernel/trace/trace_irqsoff.c:855:2: error: implicit declaration of function 'trace_preempt_enable_rcuidle'; did you mean 'trace_irq_enable_rcuidle'? [-Werror=implicit-function-declaration]
trace_preempt_enable_rcuidle(a0, a1);
The problem is that trace_preempt_enable_rcuidle() has different
definition based on multiple Kconfig symbols, but not all combinations
have a valid definition.
This changes the conditions so that we always get exactly one
definition of each of the four tracing macros. I have not tried
to verify that these definitions are sensible, but now we
can build all randconfig combinations again.
Link: http://lkml.kernel.org/r/20171019083230.2450779-1-arnd@arndb.de
Change-Id: I28715af208379e993df85c2fb35549290f4fbd6e
Fixes: d59158162e03 ("tracing: Add support for preempt and irq enable/disable events")
Acked-by: Joel Fernandes <joelaf@google.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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The patch adds new WLAN_RSN_INFO event as latest ID.
Change-Id: Ic76506632ea0aa61c79c52824556b6aaeb0b04e6
Signed-off-by: Manoj Prabhu B <bmanoj@codeaurora.org>
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This change will enable userspace to control adapter's output
voltage. Userspace can force adapter's output voltage to
5V/9V/12V.
Change-Id: I4a60a681c136df6864294dbd19849503a2be2e7b
Signed-off-by: Umang Agrawal <uagrawal@codeaurora.org>
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Update to latest diag IDs
Change-Id: I57a25f570484f2cd8255275015ca2c70294a78fb
Signed-off-by: Sreelakshmi Gownipalli <sgownipa@codeaurora.org>
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