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Changes in 4.4.260
futex: Ensure the correct return value from futex_lock_pi()
net: usb: qmi_wwan: support ZTE P685M modem
iwlwifi: pcie: fix to correct null check
mmc: sdhci-esdhc-imx: fix kernel panic when remove module
scripts: use pkg-config to locate libcrypto
scripts: set proper OpenSSL include dir also for sign-file
hugetlb: fix update_and_free_page contig page struct assumption
JFS: more checks for invalid superblock
xfs: Fix assert failure in xfs_setattr_size()
net: fix up truesize of cloned skb in skb_prepare_for_shift()
mm/hugetlb.c: fix unnecessary address expansion of pmd sharing
staging: fwserial: Fix error handling in fwserial_create
x86/reboot: Add Zotac ZBOX CI327 nano PCI reboot quirk
vt/consolemap: do font sum unsigned
wlcore: Fix command execute failure 19 for wl12xx
pktgen: fix misuse of BUG_ON() in pktgen_thread_worker()
ath10k: fix wmi mgmt tx queue full due to race condition
x86/build: Treat R_386_PLT32 relocation as R_386_PC32
Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data
staging: most: sound: add sanity check for function argument
media: uvcvideo: Allow entities with no pads
scsi: iscsi: Restrict sessions and handles to admin capabilities
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE
scsi: iscsi: Verify lengths on passthrough PDUs
Xen/gnttab: handle p2m update errors on a per-slot basis
xen-netback: respect gnttab_map_refs()'s return value
zsmalloc: account the number of compacted pages correctly
swap: fix swapfile read/write offset
media: v4l: ioctl: Fix memory leak in video_usercopy
Linux 4.4.260
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic12a2f4dc153baf99cb1716d41b4dd6024ad4317
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commit 2395928158059b8f9858365fce7713ce7fef62e4 upstream.
There exists multiple path may do zram compaction concurrently.
1. auto-compaction triggered during memory reclaim
2. userspace utils write zram<id>/compaction node
So, multiple threads may call zs_shrinker_scan/zs_compact concurrently.
But pages_compacted is a per zsmalloc pool variable and modification
of the variable is not serialized(through under class->lock).
There are two issues here:
1. the pages_compacted may not equal to total number of pages
freed(due to concurrently add).
2. zs_shrinker_scan may not return the correct number of pages
freed(issued by current shrinker).
The fix is simple:
1. account the number of pages freed in zs_compact locally.
2. use actomic variable pages_compacted to accumulate total number.
Link: https://lkml.kernel.org/r/20210202122235.26885-1-wu-yan@tcl.com
Fixes: 860c707dca155a56 ("zsmalloc: account the number of compacted pages")
Signed-off-by: Rokudo Yan <wu-yan@tcl.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2efc459d06f1630001e3984854848a5647086232 upstream.
Output defects can exist in sysfs content using sprintf and snprintf.
sprintf does not know the PAGE_SIZE maximum of the temporary buffer
used for outputting sysfs content and it's possible to overrun the
PAGE_SIZE buffer length.
Add a generic sysfs_emit function that knows that the size of the
temporary buffer and ensures that no overrun is done.
Add a generic sysfs_emit_at function that can be used in multiple
call situations that also ensures that no overrun is done.
Validate the output buffer argument to be page aligned.
Validate the offset len argument to be within the PAGE_SIZE buf.
Signed-off-by: Joe Perches <joe@perches.com>
Link: https://lore.kernel.org/r/884235202216d464d61ee975f7465332c86f76b2.1600285923.git.joe@perches.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.259
HID: make arrays usage and value to be the same
usb: quirks: add quirk to start video capture on ELMO L-12F document camera reliable
xen-netback: delete NAPI instance when queue fails to initialize
ntfs: check for valid standard information attribute
igb: Remove incorrect "unexpected SYS WRAP" log message
scripts/recordmcount.pl: support big endian for ARCH sh
kdb: Make memory allocations more robust
MIPS: vmlinux.lds.S: add missing PAGE_ALIGNED_DATA() section
Bluetooth: Fix initializing response id after clearing struct
ARM: dts: exynos: correct PMIC interrupt trigger level on Spring
ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa
Bluetooth: drop HCI device reference before return
Bluetooth: Put HCI device if inquiry procedure interrupts
usb: dwc2: Abort transaction after errors with unknown reason
usb: dwc2: Make "trimming xfer length" a debug message
ARM: s3c: fix fiq for clang IAS
bnxt_en: reverse order of TX disable and carrier off
xen/netback: fix spurious event detection for common event case
b43: N-PHY: Fix the update of coef for the PHY revision >= 3case
fbdev: aty: SPARC64 requires FB_ATY_CT
drm/gma500: Fix error return code in psb_driver_load()
gma500: clean up error handling in init
MIPS: c-r4k: Fix section mismatch for loongson2_sc_init
MIPS: lantiq: Explicitly compare LTQ_EBU_PCC_ISTAT against 0
media: media/pci: Fix memleak in empress_init
media: tm6000: Fix memleak in tm6000_start_stream
ASoC: cs42l56: fix up error handling in probe
media: lmedm04: Fix misuse of comma
media: cx25821: Fix a bug when reallocating some dma memory
media: uvcvideo: Accept invalid bFormatIndex and bFrameIndex values
btrfs: clarify error returns values in __load_free_space_cache
fs/jfs: fix potential integer overflow on shift of a int
jffs2: fix use after free in jffs2_sum_write_data()
clk: meson: clk-pll: fix initializing the old rate (fallback) for a PLL
HID: core: detect and skip invalid inputs to snto32()
dmaengine: fsldma: Fix a resource leak in the remove function
dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function
clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined
regulator: axp20x: Fix reference cout leak
isofs: release buffer head before return
IB/umad: Return EIO in case of when device disassociated
powerpc/47x: Disable 256k page size
mmc: usdhi6rol0: Fix a resource leak in the error handling path of the probe
ARM: 9046/1: decompressor: Do not clear SCTLR.nTLSMD for ARMv7+ cores
amba: Fix resource leak for drivers without .remove
tracepoint: Do not fail unregistering a probe due to memory failure
mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()
powerpc/pseries/dlpar: handle ibm, configure-connector delay status
perf intel-pt: Fix missing CYC processing in PSB
perf test: Fix unaligned access in sample parsing test
Input: elo - fix an error code in elo_connect()
sparc64: only select COMPAT_BINFMT_ELF if BINFMT_ELF is set
misc: eeprom_93xx46: Fix module alias to enable module autoprobe
misc: eeprom_93xx46: Add module alias to avoid breaking support for non device tree users
VMCI: Use set_page_dirty_lock() when unregistering guest memory
PCI: Align checking of syscall user config accessors
mm/memory.c: fix potential pte_unmap_unlock pte error
mm/hugetlb: fix potential double free in hugetlb_register_node() error path
i2c: brcmstb: Fix brcmstd_send_i2c_cmd condition
scsi: bnx2fc: Fix Kconfig warning & CNIC build errors
block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h>
blk-settings: align max_sectors on "logical_block_size" boundary
Input: xpad - add support for PowerA Enhanced Wired Controller for Xbox Series X|S
Input: joydev - prevent potential read overflow in ioctl
Input: i8042 - add ASUS Zenbook Flip to noselftest list
USB: serial: option: update interface mapping for ZTE P685M
USB: serial: mos7840: fix error code in mos7840_write()
USB: serial: mos7720: fix error code in mos7720_write()
usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1
usb: dwc3: gadget: Fix dep->interval for fullspeed interrupt
KEYS: trusted: Fix migratable=1 failing
btrfs: fix reloc root leak with 0 ref reloc roots on recovery
drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
staging: rtl8188eu: Add Edimax EW-7811UN V2 to device table
x86/reboot: Force all cpus to exit VMX root if VMX is supported
floppy: reintroduce O_NDELAY fix
mm: hugetlb: fix a race between freeing and dissolving the page
usb: renesas_usbhs: Clear pipe running flag in usbhs_pkt_pop()
libnvdimm/dimm: Avoid race between probe and available_slots_show()
module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols
gpio: pcf857x: Fix missing first interrupt
f2fs: fix out-of-repair __setattr_copy()
sparc32: fix a user-triggerable oops in clear_user()
gfs2: Don't skip dlm unlock if glock has an lvb
dm era: Recover committed writeset after crash
dm era: Verify the data block size hasn't changed
dm era: Fix bitset memory leaks
dm era: Use correct value size in equality function of writeset tree
dm era: Reinitialize bitset cache before digesting a new writeset
dm era: only resize metadata in preresume
futex: Fix OWNER_DEAD fixup
dm era: Update in-core bitset after committing the metadata
Linux 4.4.259
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9105f90e1b63990a4db7a241f6568c14ca8fe8b2
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commit 233bde21aa43516baa013ef7ac33f3427056db3e upstream.
It happens often while I'm preparing a patch for a block driver that
I'm wondering: is a definition of SECTOR_SIZE and/or SECTOR_SHIFT
available for this driver? Do I have to introduce definitions of these
constants before I can use these constants? To avoid this confusion,
move the existing definitions of SECTOR_SIZE and SECTOR_SHIFT into the
<linux/blkdev.h> header file such that these become available for all
block drivers. Make the SECTOR_SIZE definition in the uapi msdos_fs.h
header file conditional to avoid that including that header file after
<linux/blkdev.h> causes the compiler to complain about a SECTOR_SIZE
redefinition.
Note: the SECTOR_SIZE / SECTOR_SHIFT / SECTOR_BITS definitions have
not been removed from uapi header files nor from NAND drivers in
which these constants are used for another purpose than converting
block layer offsets and sizes into a number of sectors.
Cc: David S. Miller <davem@davemloft.net>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998
This brings LA.UM.9.2.r1-02500-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
4fd124d1546d8 Merge 4.4.258 into android-4.4-p
Change-Id: Idbae7489bc1d831a378dd60993f46139e5e28c4c
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Changes in 4.4.258
tracing: Do not count ftrace events in top level enable output
fgraph: Initialize tracing_graph_pause at task creation
af_key: relax availability checks for skb size calculation
iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
iwlwifi: mvm: guard against device removal in reprobe
SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
SUNRPC: Handle 0 length opaque XDR object data properly
lib/string: Add strscpy_pad() function
include/trace/events/writeback.h: fix -Wstringop-truncation warnings
memcg: fix a crash in wb_workfn when a device disappears
squashfs: add more sanity checks in id lookup
squashfs: add more sanity checks in inode lookup
squashfs: add more sanity checks in xattr id lookup
memblock: do not start bottom-up allocations with kernel_end
netfilter: xt_recent: Fix attempt to update deleted entry
h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
usb: dwc3: ulpi: fix checkpatch warning
usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one
net: watchdog: hold device global xmit lock during tx disable
vsock: fix locking in vsock_shutdown()
x86/build: Disable CET instrumentation in the kernel for 32-bit too
trace: Use -mcount-record for dynamic ftrace
tracing: Fix SKIP_STACK_VALIDATION=1 build due to bad merge with -mrecord-mcount
tracing: Avoid calling cc-option -mrecord-mcount for every Makefile
Xen/x86: don't bail early from clear_foreign_p2m_mapping()
Xen/x86: also check kernel mapping in set_foreign_p2m_mapping()
Xen/gntdev: correct dev_bus_addr handling in gntdev_map_grant_pages()
Xen/gntdev: correct error checking in gntdev_map_grant_pages()
xen/arm: don't ignore return errors from set_phys_to_machine
xen-blkback: don't "handle" error by BUG()
xen-netback: don't "handle" error by BUG()
xen-scsiback: don't "handle" error by BUG()
xen-blkback: fix error handling in xen_blkbk_map()
scsi: qla2xxx: Fix crash during driver load on big endian machines
kvm: check tlbs_dirty directly
Linux 4.4.258
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie1125773ccbc457f93c639c420dedf2c38a5e65a
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commit ebee0eab08594b2bd5db716288a4f1ae5936e9bc upstream.
Failure of the kernel part of the mapping operation should also be
indicated as an error to the caller, or else it may assume the
respective kernel VA is okay to access.
Furthermore gnttab_map_refs() failing still requires recording
successfully mapped handles, so they can be unmapped subsequently. This
in turn requires there to be a way to tell full hypercall failure from
partial success - preset map_op status fields such that they won't
"happen" to look as if the operation succeeded.
Also again use GNTST_okay instead of implying its value (zero).
This is part of XSA-361.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: stable@vger.kernel.org
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3aa6bce9af0e25b735c9c1263739a5639a336ae8 upstream.
Prevent netif_tx_disable() running concurrently with dev_watchdog() by
taking the device global xmit lock. Otherwise, the recommended:
netif_carrier_off(dev);
netif_tx_disable(dev);
driver shutdown sequence can happen after the watchdog has already
checked carrier, resulting in possible false alarms. This is because
netif_tx_lock() only sets the frozen bit without maintaining the locks
on the individual queues.
Fixes: c3f26a269c24 ("netdev: Fix lockdep warnings in multiqueue configurations.")
Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 68f23b89067fdf187763e75a56087550624fdbee ]
Without memcg, there is a one-to-one mapping between the bdi and
bdi_writeback structures. In this world, things are fairly
straightforward; the first thing bdi_unregister() does is to shutdown
the bdi_writeback structure (or wb), and part of that writeback ensures
that no other work queued against the wb, and that the wb is fully
drained.
With memcg, however, there is a one-to-many relationship between the bdi
and bdi_writeback structures; that is, there are multiple wb objects
which can all point to a single bdi. There is a refcount which prevents
the bdi object from being released (and hence, unregistered). So in
theory, the bdi_unregister() *should* only get called once its refcount
goes to zero (bdi_put will drop the refcount, and when it is zero,
release_bdi gets called, which calls bdi_unregister).
Unfortunately, del_gendisk() in block/gen_hd.c never got the memo about
the Brave New memcg World, and calls bdi_unregister directly. It does
this without informing the file system, or the memcg code, or anything
else. This causes the root wb associated with the bdi to be
unregistered, but none of the memcg-specific wb's are shutdown. So when
one of these wb's are woken up to do delayed work, they try to
dereference their wb->bdi->dev to fetch the device name, but
unfortunately bdi->dev is now NULL, thanks to the bdi_unregister()
called by del_gendisk(). As a result, *boom*.
Fortunately, it looks like the rest of the writeback path is perfectly
happy with bdi->dev and bdi->owner being NULL, so the simplest fix is to
create a bdi_dev_name() function which can handle bdi->dev being NULL.
This also allows us to bulletproof the writeback tracepoints to prevent
them from dereferencing a NULL pointer and crashing the kernel if one is
tracing with memcg's enabled, and an iSCSI device dies or a USB storage
stick is pulled.
The most common way of triggering this will be hotremoval of a device
while writeback with memcg enabled is going on. It was triggering
several times a day in a heavily loaded production environment.
Google Bug Id: 145475544
Link: https://lore.kernel.org/r/20191227194829.150110-1-tytso@mit.edu
Link: http://lkml.kernel.org/r/20191228005211.163952-1-tytso@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: Chris Mason <clm@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d1a445d3b86c9341ce7a0954c23be0edb5c9bec5 ]
There are many of those warnings.
In file included from ./arch/powerpc/include/asm/paca.h:15,
from ./arch/powerpc/include/asm/current.h:13,
from ./include/linux/thread_info.h:21,
from ./include/asm-generic/preempt.h:5,
from ./arch/powerpc/include/generated/asm/preempt.h:1,
from ./include/linux/preempt.h:78,
from ./include/linux/spinlock.h:51,
from fs/fs-writeback.c:19:
In function 'strncpy',
inlined from 'perf_trace_writeback_page_template' at
./include/trace/events/writeback.h:56:1:
./include/linux/string.h:260:9: warning: '__builtin_strncpy' specified
bound 32 equals destination size [-Wstringop-truncation]
return __builtin_strncpy(p, q, size);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix it by using the new strscpy_pad() which was introduced in "lib/string:
Add strscpy_pad() function" and will always be NUL-terminated instead of
strncpy(). Also, change strlcpy() to use strscpy_pad() in this file for
consistency.
Link: http://lkml.kernel.org/r/1564075099-27750-1-git-send-email-cai@lca.pw
Fixes: 455b2864686d ("writeback: Initial tracing support")
Fixes: 028c2dd184c0 ("writeback: Add tracing to balance_dirty_pages")
Fixes: e84d0a4f8e39 ("writeback: trace event writeback_queue_io")
Fixes: b48c104d2211 ("writeback: trace event bdi_dirty_ratelimit")
Fixes: cc1676d917f3 ("writeback: Move requeueing when I_SYNC set to writeback_sb_inodes()")
Fixes: 9fb0a7da0c52 ("writeback: add more tracepoints")
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Tobin C. Harding <tobin@kernel.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Joe Perches <joe@perches.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Nitin Gote <nitin.r.gote@intel.com>
Cc: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Cc: Stephen Kitt <steve@sk2.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 458a3bf82df4fe1f951d0f52b1e0c1e9d5a88a3b ]
We have a function to copy strings safely and we have a function to copy
strings and zero the tail of the destination (if source string is
shorter than destination buffer) but we do not have a function to do
both at once. This means developers must write this themselves if they
desire this functionality. This is a chore, and also leaves us open to
off by one errors unnecessarily.
Add a function that calls strscpy() then memset()s the tail to zero if
the source string is shorter than the destination buffer.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ba6dfce47c4d002d96cd02a304132fca76981172 ]
Remove duplicated helper functions to parse opaque XDR objects
and place inside new file net/sunrpc/auth_gss/auth_gss_internal.h.
In the new file carry the license and copyright from the source file
net/sunrpc/auth_gss/auth_gss.c. Finally, update the comment inside
include/linux/sunrpc/xdr.h since lockd is not the only user of
struct xdr_netobj.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 7e0a9220467dbcfdc5bc62825724f3e52e50ab31 upstream.
On some archs, the idle task can call into cpu_suspend(). The cpu_suspend()
will disable or pause function graph tracing, as there's some paths in
bringing down the CPU that can have issues with its return address being
modified. The task_struct structure has a "tracing_graph_pause" atomic
counter, that when set to something other than zero, the function graph
tracer will not modify the return address.
The problem is that the tracing_graph_pause counter is initialized when the
function graph tracer is enabled. This can corrupt the counter for the idle
task if it is suspended in these architectures.
CPU 1 CPU 2
----- -----
do_idle()
cpu_suspend()
pause_graph_tracing()
task_struct->tracing_graph_pause++ (0 -> 1)
start_graph_tracing()
for_each_online_cpu(cpu) {
ftrace_graph_init_idle_task(cpu)
task-struct->tracing_graph_pause = 0 (1 -> 0)
unpause_graph_tracing()
task_struct->tracing_graph_pause-- (0 -> -1)
The above should have gone from 1 to zero, and enabled function graph
tracing again. But instead, it is set to -1, which keeps it disabled.
There's no reason that the field tracing_graph_pause on the task_struct can
not be initialized at boot up.
Cc: stable@vger.kernel.org
Fixes: 380c4b1411ccd ("tracing/function-graph-tracer: append the tracing_graph_flag")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=211339
Reported-by: pierre.gondois@arm.com
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.257
net_sched: reject silly cell_log in qdisc_get_rtab()
futex,rt_mutex: Provide futex specific rt_mutex API
futex: Remove rt_mutex_deadlock_account_*()
futex: Rework inconsistent rt_mutex/futex_q state
futex: Avoid violating the 10th rule of futex
futex: Replace pointless printk in fixup_owner()
futex: Provide and use pi_state_update_owner()
rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
futex: Use pi_state_update_owner() in put_pi_state()
futex: Simplify fixup_pi_state_owner()
futex: Handle faults correctly for PI futexes
usb: udc: core: Use lock when write to soft_connect
scsi: libfc: Avoid invoking response handler twice if ep is already completed
scsi: ibmvfc: Set default timeout to avoid crash during migration
stable: clamp SUBLEVEL in 4.4 and 4.9
USB: serial: cp210x: add pid/vid for WSDA-200-USB
USB: serial: cp210x: add new VID/PID for supporting Teraoka AD2000
USB: serial: option: Adding support for Cinterion MV31
Input: i8042 - unbreak Pegatron C15B
net: lapb: Copy the skb before sending a packet
ELF/MIPS build fix
elfcore: fix building with clang
USB: gadget: legacy: fix an error code in eth_bind()
USB: usblp: don't call usb_set_interface if there's a single alt
usb: dwc2: Fix endpoint direction check in ep_from_windex
mac80211: fix station rate table updates on assoc
kretprobe: Avoid re-registration of the same kretprobe earlier
cifs: report error instead of invalid when revalidating a dentry fails
mmc: core: Limit retries when analyse of SDIO tuples fails
ARM: footbridge: fix dc21285 PCI configuration accessors
mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page
mm: hugetlb: fix a race between isolating and freeing page
mm: hugetlb: remove VM_BUG_ON_PAGE from page_huge_active
x86/build: Disable CET instrumentation in the kernel
x86/apic: Add extra serialization for non-serializing MSRs
Input: xpad - sync supported devices with fork on GitHub
ACPI: thermal: Do not call acpi_thermal_check() directly
ALSA: hda/realtek - Fix typo of pincfg for Dell quirk
Linux 4.4.257
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3bd45d2e19a068d1d25e2d57f9d171a0b57061ad
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commit 585fc0d2871c9318c949fbf45b1f081edd489e96 upstream.
If a new hugetlb page is allocated during fallocate it will not be
marked as active (set_page_huge_active) which will result in a later
isolate_huge_page failure when the page migration code would like to
move that page. Such a failure would be unexpected and wrong.
Only export set_page_huge_active, just leave clear_page_huge_active as
static. Because there are no external users.
Link: https://lkml.kernel.org/r/20210115124942.46403-3-songmuchun@bytedance.com
Fixes: 70c3547e36f5 (hugetlbfs: add hugetlbfs_fallocate())
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6e7b64b9dd6d96537d816ea07ec26b7dedd397b9 upstream.
kernel/elfcore.c only contains weak symbols, which triggers a bug with
clang in combination with recordmcount:
Cannot find symbol for section 2: .text.
kernel/elfcore.o: failed
Move the empty stubs into linux/elfcore.h as inline functions. As only
two architectures use these, just use the architecture specific Kconfig
symbols to key off the declaration.
Link: https://lkml.kernel.org/r/20201204165742.3815221-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998
This brings LA.UM.9.2.r1-02000-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
0566f6529a7b8 Merge 4.4.255 into android-4.4-p
Conflicts:
drivers/scsi/ufs/ufshcd.c
drivers/usb/gadget/function/f_accessory.c
drivers/usb/gadget/function/f_uac2.c
net/core/skbuff.c
Change-Id: I327c7f3793e872609f33f2a8e70eba7b580d70f3
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Changes in 4.4.255
ACPI: sysfs: Prefer "compatible" modalias
wext: fix NULL-ptr-dereference with cfg80211's lack of commit()
net: usb: qmi_wwan: added support for Thales Cinterion PLSx3 modem family
KVM: x86/pmu: Fix HW_REF_CPU_CYCLES event pseudo-encoding in intel_arch_events[]
mt7601u: fix kernel crash unplugging the device
mt7601u: fix rx buffer refcounting
y2038: futex: Move compat implementation into futex.c
futex: Move futex exit handling into futex code
futex: Replace PF_EXITPIDONE with a state
exit/exec: Seperate mm_release()
futex: Split futex_mm_release() for exit/exec
futex: Set task::futex_state to DEAD right after handling futex exit
futex: Mark the begin of futex exit explicitly
futex: Sanitize exit state handling
futex: Provide state handling for exec() as well
futex: Add mutex around futex exit
futex: Provide distinct return value when owner is exiting
futex: Prevent exit livelock
ARM: imx: build suspend-imx6.S with arm instruction set
netfilter: nft_dynset: add timeout extension to template
xfrm: Fix oops in xfrm_replay_advance_bmp
RDMA/cxgb4: Fix the reported max_recv_sge value
mac80211: pause TX while changing interface type
can: dev: prevent potential information leak in can_fill_info()
iommu/vt-d: Gracefully handle DMAR units with no supported address widths
iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built
NFC: fix resource leak when target index is invalid
NFC: fix possible resource leak
Linux 4.4.255
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I33bac27670b3cd649e2c8c1ce42efff148f8f202
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commit 9def3b1a07c41e21c68a0eb353e3e569fdd1d2b1 upstream.
Since commit c40aaaac1018 ("iommu/vt-d: Gracefully handle DMAR units
with no supported address widths") dmar.c needs struct iommu_device to
be selected. We can drop this dependency by not dereferencing struct
iommu_device if IOMMU_API is not selected and by reusing the information
stored in iommu->drhd->ignored instead.
This fixes the following build error when IOMMU_API is not selected:
drivers/iommu/dmar.c: In function ‘free_iommu’:
drivers/iommu/dmar.c:1139:41: error: ‘struct iommu_device’ has no member named ‘ops’
1139 | if (intel_iommu_enabled && iommu->iommu.ops) {
^
Fixes: c40aaaac1018 ("iommu/vt-d: Gracefully handle DMAR units with no supported address widths")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lore.kernel.org/r/20201013073055.11262-1-brgl@bgdev.pl
Signed-off-by: Joerg Roedel <jroedel@suse.de>
[ - context change due to moving drivers/iommu/dmar.c to
drivers/iommu/intel/dmar.c
- set the drhr in the iommu like in upstream commit b1012ca8dc4f
("iommu/vt-d: Skip TE disabling on quirky gfx dedicated iommu") ]
Signed-off-by: Filippo Sironi <sironi@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3f186d974826847a07bc7964d79ec4eded475ad9 upstream.
The mutex will be used in subsequent changes to replace the busy looping of
a waiter when the futex owner is currently executing the exit cleanup to
prevent a potential live lock.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.845798895@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 18f694385c4fd77a09851fd301236746ca83f3cb upstream.
Instead of relying on PF_EXITING use an explicit state for the futex exit
and set it in the futex exit function. This moves the smp barrier and the
lock/unlock serialization into the futex code.
As with the DEAD state this is restricted to the exit path as exec
continues to use the same task struct.
This allows to simplify that logic in a next step.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.539409004@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 150d71584b12809144b8145b817e83b81158ae5f upstream.
To allow separate handling of the futex exit state in the futex exit code
for exit and exec, split futex_mm_release() into two functions and invoke
them from the corresponding exit/exec_mm_release() callsites.
Preparatory only, no functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.332094221@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4610ba7ad877fafc0a25a30c6c82015304120426 upstream.
mm_release() contains the futex exit handling. mm_release() is called from
do_exit()->exit_mm() and from exec()->exec_mm().
In the exit_mm() case PF_EXITING and the futex state is updated. In the
exec_mm() case these states are not touched.
As the futex exit code needs further protections against exit races, this
needs to be split into two functions.
Preparatory only, no functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.240518241@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3d4775df0a89240f671861c6ab6e8d59af8e9e41 upstream.
The futex exit handling relies on PF_ flags. That's suboptimal as it
requires a smp_mb() and an ugly lock/unlock of the exiting tasks pi_lock in
the middle of do_exit() to enforce the observability of PF_EXITING in the
futex code.
Add a futex_state member to task_struct and convert the PF_EXITPIDONE logic
over to the new state. The PF_EXITING dependency will be cleaned up in a
later step.
This prepares for handling various futex exit issues later.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.149449274@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ba31c1a48538992316cc71ce94fa9cd3e7b427c0 upstream.
The futex exit handling is #ifdeffed into mm_release() which is not pretty
to begin with. But upcoming changes to address futex exit races need to add
more functionality to this exit code.
Split it out into a function, move it into futex code and make the various
futex exit functions static.
Preparatory only and no functional change.
Folded build fix from Borislav.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.049705556@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 04e7712f4460585e5eed5b853fd8b82a9943958f upstream.
We are going to share the compat_sys_futex() handler between 64-bit
architectures and 32-bit architectures that need to deal with both 32-bit
and 64-bit time_t, and this is easier if both entry points are in the
same file.
In fact, most other system call handlers do the same thing these days, so
let's follow the trend here and merge all of futex_compat.c into futex.c.
In the process, a few minor changes have to be done to make sure everything
still makes sense: handle_futex_death() and futex_cmpxchg_enabled() become
local symbol, and the compat version of the fetch_robust_entry() function
gets renamed to compat_fetch_robust_entry() to avoid a symbol clash.
This is intended as a purely cosmetic patch, no behavior should
change.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[Lee: Back-ported to satisfy a build dependency]
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.254
ALSA: seq: oss: Fix missing error check in snd_seq_oss_synth_make_info()
ALSA: hda/via: Add minimum mute flag
ACPI: scan: Make acpi_bus_get_device() clear return pointer on error
dm: avoid filesystem lookup in dm_get_dev_t()
ASoC: Intel: haswell: Add missing pm_ops
scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback
drm/nouveau/bios: fix issue shadowing expansion ROMs
drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields
can: dev: can_restart: fix use after free bug
iio: ad5504: Fix setting power-down state
ehci: fix EHCI host controller initialization sequence
usb: bdc: Make bdc pci driver depend on BROKEN
xhci: make sure TRB is fully written before giving it to the controller
compiler.h: Raise minimum version of GCC to 5.1 for arm64
netfilter: rpfilter: mask ecn bits before fib lookup
sh: dma: fix kconfig dependency for G2_DMA
sh_eth: Fix power down vs. is_opened flag ordering
skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too
ipv6: create multicast route with RTPROT_KERNEL
net_sched: avoid shift-out-of-bounds in tcindex_set_parms()
Revert "mm/slub: fix a memory leak in sysfs_slab_add()"
tracing: Fix race in trace_open and buffer resize call
xen-blkback: set ring->xenblkd to NULL after kthread_stop()
x86/boot/compressed: Disable relocation relaxation
Linux 4.4.254
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5c2c0aa786edf056b06865a620cc59c367b1a90f
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commit dca5244d2f5b94f1809f0c02a549edf41ccd5493 upstream.
GCC versions >= 4.9 and < 5.1 have been shown to emit memory references
beyond the stack pointer, resulting in memory corruption if an interrupt
is taken after the stack pointer has been adjusted but before the
reference has been executed. This leads to subtle, infrequent data
corruption such as the EXT4 problems reported by Russell King at the
link below.
Life is too short for buggy compilers, so raise the minimum GCC version
required by arm64 to 5.1.
Reported-by: Russell King <linux@armlinux.org.uk>
Suggested-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20210105154726.GD1551@shell.armlinux.org.uk
Link: https://lore.kernel.org/r/20210112224832.10980-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
[will: backport to 4.4.y/4.9.y/4.14.y; add __clang__ check]
Link: https://lore.kernel.org/r/CA+G9fYuzE9WMSB7uGjV4gTzK510SHEdJb_UXQCzsQ5MqA=h9SA@mail.gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.253
ASoC: dapm: remove widget from dirty list on free
mm/hugetlb: fix potential missing huge page size info
ext4: fix bug for rename with RENAME_WHITEOUT
ARC: build: add boot_targets to PHONY
ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pram
arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC
misdn: dsp: select CONFIG_BITREVERSE
net: ethernet: fs_enet: Add missing MODULE_LICENSE
ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI
ARM: picoxcell: fix missing interrupt-parent properties
Input: uinput - avoid FF flush when destroying device
dump_common_audit_data(): fix racy accesses to ->d_name
NFS: nfs_igrab_and_active must first reference the superblock
ext4: fix superblock checksum failure when setting password salt
RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
mm, slub: consider rest of partial list if acquire_slab() fails
net: sunrpc: interpret the return value of kstrtou32 correctly
usb: ohci: Make distrust_firmware param default to false
iio: buffer: Fix demux update
nfsd4: readdirplus shouldn't return parent of export
net: cdc_ncm: correct overhead in delayed_ndp_size
netxen_nic: fix MSI/MSI-x interrupts
rndis_host: set proper input size for OID_GEN_PHYSICAL_MEDIUM request
net: dcb: Validate netlink message in DCB handler
net: dcb: Accept RTM_GETDCB messages carrying set-like DCB commands
net: sit: unregister_netdevice on newlink's error path
rxrpc: Fix handling of an unsupported token type in rxrpc_read()
net: avoid 32 x truesize under-estimation for tiny skbs
spi: cadence: cache reference clock rate during probe
Linux 4.4.253
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I654eb9f2b62aea6745aeae37341e162ab2a6a596
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commit e8b95728f724797f958912fd9b765a695595d3a6 upstream.
Normally, when input device supporting force feedback effects is being
destroyed, we try to "flush" currently playing effects, so that the
physical device does not continue vibrating (or executing other effects).
Unfortunately this does not work well for uinput as flushing of the effects
deadlocks with the destroy action:
- if device is being destroyed because the file descriptor is being closed,
then there is noone to even service FF requests;
- if device is being destroyed because userspace sent UI_DEV_DESTROY,
while theoretically it could be possible to service FF requests,
userspace is unlikely to do so (they'd need to make sure FF handling
happens on a separate thread) even if kernel solves the issue with FF
ioctls deadlocking with UI_DEV_DESTROY ioctl on udev->mutex.
To avoid lockups like the one below, let's install a custom input device
flush handler, and avoid trying to flush force feedback effects when we
destroying the device, and instead rely on uinput to shut off the device
properly.
NMI watchdog: Watchdog detected hard LOCKUP on cpu 3
...
<<EOE>> [<ffffffff817a0307>] _raw_spin_lock_irqsave+0x37/0x40
[<ffffffff810e633d>] complete+0x1d/0x50
[<ffffffffa00ba08c>] uinput_request_done+0x3c/0x40 [uinput]
[<ffffffffa00ba587>] uinput_request_submit.part.7+0x47/0xb0 [uinput]
[<ffffffffa00bb62b>] uinput_dev_erase_effect+0x5b/0x76 [uinput]
[<ffffffff815d91ad>] erase_effect+0xad/0xf0
[<ffffffff815d929d>] flush_effects+0x4d/0x90
[<ffffffff815d4cc0>] input_flush_device+0x40/0x60
[<ffffffff815daf1c>] evdev_cleanup+0xac/0xc0
[<ffffffff815daf5b>] evdev_disconnect+0x2b/0x60
[<ffffffff815d74ac>] __input_unregister_device+0xac/0x150
[<ffffffff815d75f7>] input_unregister_device+0x47/0x70
[<ffffffffa00bac45>] uinput_destroy_device+0xb5/0xc0 [uinput]
[<ffffffffa00bb2de>] uinput_ioctl_handler.isra.9+0x65e/0x740 [uinput]
[<ffffffff811231ab>] ? do_futex+0x12b/0xad0
[<ffffffffa00bb3f8>] uinput_ioctl+0x18/0x20 [uinput]
[<ffffffff81241248>] do_vfs_ioctl+0x298/0x480
[<ffffffff81337553>] ? security_file_ioctl+0x43/0x60
[<ffffffff812414a9>] SyS_ioctl+0x79/0x90
[<ffffffff817a04ee>] entry_SYSCALL_64_fastpath+0x12/0x71
Reported-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Reported-by: Clément VUCHENER <clement.vuchener@gmail.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=193741
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ee61cfd955a64a58ed35cbcfc54068fcbd486945 ]
It adds a stub acpi_create_platform_device() for !CONFIG_ACPI build, so
that caller doesn't have to deal with !CONFIG_ACPI build issue.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Changes in 4.4.252
target: add XCOPY target/segment desc sense codes
target: bounds check XCOPY segment descriptor list
target: simplify XCOPY wwn->se_dev lookup helper
target: use XCOPY segment descriptor CSCD IDs
xcopy: loop over devices using idr helper
scsi: target: Fix XCOPY NAA identifier lookup
powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at
net: ip: always refragment ip defragmented packets
net: fix pmtu check in nopmtudisc mode
vmlinux.lds.h: Add PGO and AutoFDO input sections
ubifs: wbuf: Don't leak kernel memory to flash
spi: pxa2xx: Fix use-after-free on unbind
cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get()
wil6210: select CONFIG_CRC32
block: rsxx: select CONFIG_CRC32
iommu/intel: Fix memleak in intel_irq_remapping_alloc
block: fix use-after-free in disk_part_iter_next
net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet
Linux 4.4.252
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I52de3890001cf1dd465a82774f65934443485761
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commit eff8728fe69880d3f7983bec3fb6cea4c306261f upstream.
Basically, consider .text.{hot|unlikely|unknown}.* part of .text, too.
When compiling with profiling information (collected via PGO
instrumentations or AutoFDO sampling), Clang will separate code into
.text.hot, .text.unlikely, or .text.unknown sections based on profiling
information. After D79600 (clang-11), these sections will have a
trailing `.` suffix, ie. .text.hot., .text.unlikely., .text.unknown..
When using -ffunction-sections together with profiling infomation,
either explicitly (FGKASLR) or implicitly (LTO), code may be placed in
sections following the convention:
.text.hot.<foo>, .text.unlikely.<bar>, .text.unknown.<baz>
where <foo>, <bar>, and <baz> are functions. (This produces one section
per function; we generally try to merge these all back via linker script
so that we don't have 50k sections).
For the above cases, we need to teach our linker scripts that such
sections might exist and that we'd explicitly like them grouped
together, otherwise we can wind up with code outside of the
_stext/_etext boundaries that might not be mapped properly for some
architectures, resulting in boot failures.
If the linker script is not told about possible input sections, then
where the section is placed as output is a heuristic-laiden mess that's
non-portable between linkers (ie. BFD and LLD), and has resulted in many
hard to debug bugs. Kees Cook is working on cleaning this up by adding
--orphan-handling=warn linker flag used in ARCH=powerpc to additional
architectures. In the case of linker scripts, borrowing from the Zen of
Python: explicit is better than implicit.
Also, ld.bfd's internal linker script considers .text.hot AND
.text.hot.* to be part of .text, as well as .text.unlikely and
.text.unlikely.*. I didn't see support for .text.unknown.*, and didn't
see Clang producing such code in our kernel builds, but I see code in
LLVM that can produce such section names if profiling information is
missing. That may point to a larger issue with generating or collecting
profiles, but I would much rather be safe and explicit than have to
debug yet another issue related to orphan section placement.
Reported-by: Jian Cai <jiancai@google.com>
Suggested-by: Fāng-ruì Sòng <maskray@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Luis Lozano <llozano@google.com>
Tested-by: Manoj Gupta <manojgupta@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=add44f8d5c5c05e08b11e033127a744d61c26aee
Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1de778ed23ce7492c523d5850c6c6dbb34152655
Link: https://reviews.llvm.org/D79600
Link: https://bugs.chromium.org/p/chromium/issues/detail?id=1084760
Link: https://lore.kernel.org/r/20200821194310.3089815-7-keescook@chromium.org
Debugged-by: Luis Lozano <llozano@google.com>
[nc: Fix conflicts around lack of TEXT_MAIN, NOINSTR_TEXT, and
.text..refcount]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit e864212078ded276bdb272b2e0ee6a979357ca8a ]
As defined in http://www.t10.org/lists/asc-num.htm. To be used during
validation of XCOPY target and segment descriptor lists.
Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Changes in 4.4.251
kbuild: don't hardcode depmod path
workqueue: Kick a worker based on the actual activation of delayed works
lib/genalloc: fix the overflow when size is too big
depmod: handle the case of /sbin/depmod without /sbin in PATH
atm: idt77252: call pci_disable_device() on error path
ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst()
net: hns: fix return value check in __lb_other_process()
net: hdlc_ppp: Fix issues when mod_timer is called while timer is running
CDC-NCM: remove "connected" log message
vhost_net: fix ubuf refcount incorrectly when sendmsg fails
net: sched: prevent invalid Scell_log shift count
virtio_net: Fix recursive call to cpus_read_lock()
ethernet: ucc_geth: fix use-after-free in ucc_geth_remove()
video: hyperv_fb: Fix the mmap() regression for v5.4.y and older
usb: gadget: enable super speed plus
USB: cdc-acm: blacklist another IR Droid device
usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data()
USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set
usb: uas: Add PNY USB Portable SSD to unusual_uas
USB: serial: iuu_phoenix: fix DMA from stack
USB: serial: option: add LongSung M5710 module support
USB: yurex: fix control-URB timeout handling
USB: usblp: fix DMA to stack
ALSA: usb-audio: Fix UBSAN warnings for MIDI jacks
usb: gadget: select CONFIG_CRC32
usb: gadget: f_uac2: reset wMaxPacketSize
usb: gadget: function: printer: Fix a memory leak for interface descriptor
USB: gadget: legacy: fix return error code in acm_ms_bind()
usb: gadget: Fix spinlock lockup on usb_function_deactivate
usb: gadget: configfs: Preserve function ordering after bind failure
USB: serial: keyspan_pda: remove unused variable
x86/mm: Fix leak of pmd ptlock
ALSA: hda/conexant: add a new hda codec CX11970
Revert "device property: Keep secondary firmware node secondary by type"
netfilter: ipset: fix shift-out-of-bounds in htable_bits()
netfilter: xt_RATEEST: reject non-null terminated string from userspace
x86/mtrr: Correct the range check before performing MTRR type lookups
Linux 4.4.251
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic1f58f780b773ada8027b13b863c26e9d3e97e17
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[ Upstream commit bd1248f1ddbc48b0c30565fce897a3b6423313b8 ]
Check Scell_log shift size in red_check_params() and modify all callers
of red_check_params() to pass Scell_log.
This prevents a shift out-of-bounds as detected by UBSAN:
UBSAN: shift-out-of-bounds in ./include/net/red.h:252:22
shift exponent 72 is too large for 32-bit type 'int'
Fixes: 8afa10cbe281 ("net_sched: red: Avoid illegal values")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: syzbot+97c5bd9cc81eca63d36e@syzkaller.appspotmail.com
Cc: Nogah Frankel <nogahf@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Changes in 4.4.250
ALSA: hda/ca0132 - Fix work handling in delayed HP detection
ALSA: usb-audio: simplify set_sync_ep_implicit_fb_quirk
ALSA: usb-audio: fix sync-ep altsetting sanity check
ALSA: hda/realtek - Support Dell headset mode for ALC3271
ALSA: hda - Fix a wrong FIXUP for alc289 on Dell machines
ALSA: hda/realtek - Dell headphone has noise on unmute for ALC236
s390/dasd: fix hanging device offline processing
USB: serial: digi_acceleport: fix write-wakeup deadlocks
uapi: move constants from <linux/kernel.h> to <linux/const.h>
of: fix linker-section match-table corruption
reiserfs: add check for an invalid ih_entry_count
misc: vmw_vmci: fix kernel info-leak by initializing dbells in vmci_ctx_get_chkpt_doorbells()
media: gp8psk: initialize stats at power control logic
ALSA: seq: Use bool for snd_seq_queue internal flags
module: set MODULE_STATE_GOING state when a module fails to load
quota: Don't overflow quota file offsets
powerpc: sysdev: add missing iounmap() on error in mpic_msgr_probe()
module: delay kobject uevent until after module init call
iio:magnetometer:mag3110: Fix alignment and data leak issues.
mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start
Linux 4.4.250
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I084f3c7f25922b12c18e7b7a51ad3ca2a14e0a49
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commit 5812b32e01c6d86ba7a84110702b46d8a8531fe9 upstream.
Specify type alignment when declaring linker-section match-table entries
to prevent gcc from increasing alignment and corrupting the various
tables with padding (e.g. timers, irqchips, clocks, reserved memory).
This is specifically needed on x86 where gcc (typically) aligns larger
objects like struct of_device_id with static extent on 32-byte
boundaries which at best prevents matching on anything but the first
entry. Specifying alignment when declaring variables suppresses this
optimisation.
Here's a 64-bit example where all entries are corrupt as 16 bytes of
padding has been inserted before the first entry:
ffffffff8266b4b0 D __clk_of_table
ffffffff8266b4c0 d __of_table_fixed_factor_clk
ffffffff8266b5a0 d __of_table_fixed_clk
ffffffff8266b680 d __clk_of_table_sentinel
And here's a 32-bit example where the 8-byte-aligned table happens to be
placed on a 32-byte boundary so that all but the first entry are corrupt
due to the 28 bytes of padding inserted between entries:
812b3ec0 D __irqchip_of_table
812b3ec0 d __of_table_irqchip1
812b3fa0 d __of_table_irqchip2
812b4080 d __of_table_irqchip3
812b4160 d irqchip_of_match_end
Verified on x86 using gcc-9.3 and gcc-4.9 (which uses 64-byte
alignment), and on arm using gcc-7.2.
Note that there are no in-tree users of these tables on x86 currently
(even if they are included in the image).
Fixes: 54196ccbe0ba ("of: consolidate linker section OF match table declarations")
Fixes: f6e916b82022 ("irqchip: add basic infrastructure")
Cc: stable <stable@vger.kernel.org> # 3.9
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20201123102319.8090-2-johan@kernel.org
[ johan: adjust context to 5.4 ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a85cbe6159ffc973e5702f70a3bd5185f8f3c38d upstream.
and include <linux/const.h> in UAPI headers instead of <linux/kernel.h>.
The reason is to avoid indirect <linux/sysinfo.h> include when using
some network headers: <linux/netlink.h> or others -> <linux/kernel.h>
-> <linux/sysinfo.h>.
This indirect include causes on MUSL redefinition of struct sysinfo when
included both <sys/sysinfo.h> and some of UAPI headers:
In file included from x86_64-buildroot-linux-musl/sysroot/usr/include/linux/kernel.h:5,
from x86_64-buildroot-linux-musl/sysroot/usr/include/linux/netlink.h:5,
from ../include/tst_netlink.h:14,
from tst_crypto.c:13:
x86_64-buildroot-linux-musl/sysroot/usr/include/linux/sysinfo.h:8:8: error: redefinition of `struct sysinfo'
struct sysinfo {
^~~~~~~
In file included from ../include/tst_safe_macros.h:15,
from ../include/tst_test.h:93,
from tst_crypto.c:11:
x86_64-buildroot-linux-musl/sysroot/usr/include/sys/sysinfo.h:10:8: note: originally defined here
Link: https://lkml.kernel.org/r/20201015190013.8901-1-petr.vorel@gmail.com
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
Suggested-by: Rich Felker <dalias@aerifal.cx>
Acked-by: Rich Felker <dalias@libc.org>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since we need to change the implementation, stop exposing internals.
Provide KREF_INIT() to allow static initialization of struct kref.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Bug: 173789633
Change-Id: I5fa30eb173b15bcb5d291ccbb61294f28ba27ea9
(cherry picked from commit 1e24edca0557dba6486d39d3c24c288475432bcf)
Signed-off-by: Giuliano Procida <gprocida@google.com>
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https://source.codeaurora.org/quic/la/kernel/msm-4.4 into lineage-18.1-caf-msm8998
* tag 'LA.UM.9.2.r1-02000-SDMxx0.0' of https://source.codeaurora.org/quic/la/kernel/msm-4.4:
net: ipv6: Use passed in table for nexthop lookups
ipv6: addrconf: use stable address generator for ARPHRD_NONE
msm: kgsl: Protect the memdesc->gpuaddr in SVM use cases
msm: kgsl: Stop using memdesc->usermem
msm: kgsl: Correct the refcount on current process PID
HID: sony: Update hid_have_special_driver
UPSTREAM: HID: input: map digitizer battery usage
HID: input: ignore the battery in OKLICK Laser BTmouse
defconfig: Enable CONFIG_HID_NINTENDO for msm8998
iio: qcom-rradc: Update logic to monitor health of RRADC peripheral
qcom: fg-memif: Correct timeout condition for memory grant
power: qpnp-fg-gen3: Add a property to reset FG BCL device
msm: ipa3: Add check to validate rule_cnt
power_supply: add FG_RESET_CLOCK property
defconfig: Enable CONFIG_HID_NINTENDO for SDM660
FROMLIST: HID: nintendo: add nintendo switch controller driver
defconfig: Enable UTS_NS for sdm660
Conflicts:
drivers/hid/hid-input.c
drivers/power/power_supply_sysfs.c
include/linux/power_supply.h
Change-Id: I577e4b1d9410887224dbdb192c6eea1f2de6aded
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Add a new address generator mode, using the stable address generator
with an automatically generated secret. This is intended as a default
address generator mode for device types with no EUI64 implementation.
The new generator is used for ARPHRD_NONE interfaces initially, adding
default IPv6 autoconf support to e.g. tun interfaces.
If the addrgenmode is set to 'random', either by default or manually,
and no stable secret is available, then a random secret is used as
input for the stable-privacy address generator. The secret can be
read and modified like manually configured secrets, using the proc
interface. Modifying the secret will change the addrgen mode to
'stable-privacy' to indicate that it operates on a known secret.
Existing behaviour of the 'stable-privacy' mode is kept unchanged. If
a known secret is available when the device is created, then the mode
will default to 'stable-privacy' as before. The mode can be manually
set to 'random' but it will behave exactly like 'stable-privacy' in
this case. The secret will not change.
Change-Id: I6ffbe2daacaf685c1b8941f7cfca48795eea85c8
Git-commit: cc9da6cc4f56e05cc9e591459fe0192727ff58b3
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: 吉藤英明 <hideaki.yoshifuji@miraclelinux.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sharath Chandra Vurukala <sharathv@codeaurora.org>
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We already mapped battery strength reports from the generic device
control page, but we did not update capacity from input reports, nor we
mapped the battery strength report from the digitizer page, so let's
implement this now.
Batteries driven by the input reports will now start in "unknown" state,
and will get updated once we receive first report containing battery
strength from the device.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Bug: 146590412
Signed-off-by: Siarhei Vishniakou <svv@google.com>
Change-Id: I15f2e1c1349e2cf044c45a6697015b95596ce760
Git-commit: 5e88a0aa262f12c609b99571811acdaf19149f65
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm-4.4
Signed-off-by: Swetha Chikkaboraiah <schikk@codeaurora.org>
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Add FG_RESET_CLOCK property which is used to reset
FG clocks.
Change-Id: I5c567842a3a59378937db5ddbae59767f2a4f640
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
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skb_list_walk_safe helper
This worked before, because we made all callers name their next pointer
"next". But in trying to be more "drop-in" ready, the silliness here is
revealed. This commit fixes the problem by making the macro argument and
the member use different names.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 5eee7bd7e245914e4e050c413dfe864e31805207)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4778eb05d0ed284543822bd3ba537379c3c19b85
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As part of the continual effort to remove direct usage of skb->next and
skb->prev, this patch adds a helper for iterating through the
singly-linked variant of skb lists, which are used for lists of GSO
packet. The name "skb_list_..." has been chosen to match the existing
function, "kfree_skb_list, which also operates on these singly-linked
lists, and the "..._walk_safe" part is the same idiom as elsewhere in
the kernel.
This patch removes the helper from wireguard and puts it into
linux/skbuff.h, while making it a bit more robust for general usage. In
particular, parenthesis are added around the macro argument usage, and it
now accounts for trying to iterate through an already-null skb pointer,
which will simply run the iteration zero times. This latter enhancement
means it can be used to replace both do { ... } while and while (...)
open-coded idioms.
This should take care of these three possible usages, which match all
current methods of iterations.
skb_list_walk_safe(segs, skb, next) { ... }
skb_list_walk_safe(skb, skb, next) { ... }
skb_list_walk_safe(segs, skb, segs) { ... }
Gcc appears to generate efficient code for each of these.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit dcfea72e79b0aa7a057c8f6024169d86a1bbc84b)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia8fe1237424161e4de23df4515dbb2275e15e180
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This fixes two spelling errors in source code comments.
Signed-off-by: Josh Soref <jsoref@gmail.com>
[Jason: rewrote commit message]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit a2ec8b5706944d228181c8b91d815f41d6dd8e7b)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id8dbd0f7ffa71358b7ecdee6a890cdfb4341f3c1
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WireGuard is a layer 3 secure networking tunnel made specifically for
the kernel, that aims to be much simpler and easier to audit than IPsec.
Extensive documentation and description of the protocol and
considerations, along with formal proofs of the cryptography, are
available at:
* https://www.wireguard.com/
* https://www.wireguard.com/papers/wireguard.pdf
This commit implements WireGuard as a simple network device driver,
accessible in the usual RTNL way used by virtual network drivers. It
makes use of the udp_tunnel APIs, GRO, GSO, NAPI, and the usual set of
networking subsystem APIs. It has a somewhat novel multicore queueing
system designed for maximum throughput and minimal latency of encryption
operations, but it is implemented modestly using workqueues and NAPI.
Configuration is done via generic Netlink, and following a review from
the Netlink maintainer a year ago, several high profile userspace tools
have already implemented the API.
This commit also comes with several different tests, both in-kernel
tests and out-of-kernel tests based on network namespaces, taking profit
of the fact that sockets used by WireGuard intentionally stay in the
namespace the WireGuard interface was originally created, exactly like
the semantics of userspace tun devices. See wireguard.com/netns/ for
pictures and examples.
The source code is fairly short, but rather than combining everything
into a single file, WireGuard is developed as cleanly separable files,
making auditing and comprehension easier. Things are laid out as
follows:
* noise.[ch], cookie.[ch], messages.h: These implement the bulk of the
cryptographic aspects of the protocol, and are mostly data-only in
nature, taking in buffers of bytes and spitting out buffers of
bytes. They also handle reference counting for their various shared
pieces of data, like keys and key lists.
* ratelimiter.[ch]: Used as an integral part of cookie.[ch] for
ratelimiting certain types of cryptographic operations in accordance
with particular WireGuard semantics.
* allowedips.[ch], peerlookup.[ch]: The main lookup structures of
WireGuard, the former being trie-like with particular semantics, an
integral part of the design of the protocol, and the latter just
being nice helper functions around the various hashtables we use.
* device.[ch]: Implementation of functions for the netdevice and for
rtnl, responsible for maintaining the life of a given interface and
wiring it up to the rest of WireGuard.
* peer.[ch]: Each interface has a list of peers, with helper functions
available here for creation, destruction, and reference counting.
* socket.[ch]: Implementation of functions related to udp_socket and
the general set of kernel socket APIs, for sending and receiving
ciphertext UDP packets, and taking care of WireGuard-specific sticky
socket routing semantics for the automatic roaming.
* netlink.[ch]: Userspace API entry point for configuring WireGuard
peers and devices. The API has been implemented by several userspace
tools and network management utility, and the WireGuard project
distributes the basic wg(8) tool.
* queueing.[ch]: Shared function on the rx and tx path for handling
the various queues used in the multicore algorithms.
* send.c: Handles encrypting outgoing packets in parallel on
multiple cores, before sending them in order on a single core, via
workqueues and ring buffers. Also handles sending handshake and cookie
messages as part of the protocol, in parallel.
* receive.c: Handles decrypting incoming packets in parallel on
multiple cores, before passing them off in order to be ingested via
the rest of the networking subsystem with GRO via the typical NAPI
poll function. Also handles receiving handshake and cookie messages
as part of the protocol, in parallel.
* timers.[ch]: Uses the timer wheel to implement protocol particular
event timeouts, and gives a set of very simple event-driven entry
point functions for callers.
* main.c, version.h: Initialization and deinitialization of the module.
* selftest/*.h: Runtime unit tests for some of the most security
sensitive functions.
* tools/testing/selftests/wireguard/netns.sh: Aforementioned testing
script using network namespaces.
This commit aims to be as self-contained as possible, implementing
WireGuard as a standalone module not needing much special handling or
coordination from the network subsystem. I expect for future
optimizations to the network stack to positively improve WireGuard, and
vice-versa, but for the time being, this exists as intentionally
standalone.
We introduce a menu option for CONFIG_WIREGUARD, as well as providing a
verbose debug log and self-tests via CONFIG_WIREGUARD_DEBUG.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: David Miller <davem@davemloft.net>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
[Jason: ported to 4.19 by doing the following:
- wg_get_device_start uses genl_family_attrbuf
- skb_probe_transport_header has an extra argument
- NLA_EXACT/MIN_LEN is not there yet
- nla policy is per verb not family
- totalram_pages isn't a function]
- __kernel_timespec -> __uapi_kernel_timespec]
(cherry picked from commit e7096c131e5161fa3b8e52a650d7719d2857adfd)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I04cd661a4cfec9b9fa64c3ab0ea39e4e2352fa13
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https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998
This brings LA.UM.9.2.r1-01800-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
300d539b8e6e2 ANDROID: usb: f_accessory: Wrap '_acc_dev' in get()/put() accessors
Conflicts:
drivers/usb/gadget/function/f_accessory.c
include/linux/spi/spi.h
Change-Id: Ifef5bfcb9d92b6d560126f0216369c567476f55d
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