Kernel sources for Moto G9 (Play) (Guamp)
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Takashi Iwai ac8196928f ALSA: hda: Fix potential race in unsol event handler
[ Upstream commit c637fa151259c0f74665fde7cba5b7eac1417ae5 ]

The unsol event handling code has a loop retrieving the read/write
indices and the arrays without locking while the append to the array
may happen concurrently.  This may lead to some inconsistency.
Although there hasn't been any proof of this bad results, it's still
safer to protect the racy accesses.

This patch adds the spinlock protection around the unsol handling loop
for addressing it.  Here we take bus->reg_lock as the writer side
snd_hdac_bus_queue_event() is also protected by that lock.

Link: https://lore.kernel.org/r/20200516062556.30951-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:14:44 +02:00
arch arm64: cpufeature: Relax checks for AArch32 support at EL[0-2] 2020-10-01 13:14:43 +02:00
block block: ensure bdi->io_pages is always initialized 2020-09-12 13:40:22 +02:00
certs
crypto crypto: af_alg - fix use-after-free in af_alg_accept() due to bh_lock_sock() 2020-07-09 09:37:10 +02:00
Documentation dt-bindings: sound: wm8994: Correct required supplies based on actual implementaion 2020-10-01 13:14:43 +02:00
drivers tty: serial: samsung: Correct clock selection logic 2020-10-01 13:14:44 +02:00
firmware
fs bdev: Reduce time holding bd_mutex in sync in blkdev_close() 2020-10-01 13:14:42 +02:00
include NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests() 2020-10-01 13:14:41 +02:00
init printk: queue wake_up_klogd irq_work only if per-CPU areas are ready 2020-07-22 09:32:13 +02:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:18:40 +02:00
kernel tracing: Use address-of operator on section symbols 2020-10-01 13:14:38 +02:00
lib lib/string.c: implement stpcpy 2020-10-01 13:14:25 +02:00
LICENSES
mm mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area 2020-10-01 13:14:42 +02:00
net tipc: fix memory leak in service subscripting 2020-10-01 13:14:44 +02:00
samples samples: bpf: Fix build error 2020-06-03 08:19:31 +02:00
scripts checkpatch: fix the usage of capture group ( ... ) 2020-09-09 19:04:32 +02:00
security selinux: sel_avc_get_stat_idx should increase position index 2020-10-01 13:14:33 +02:00
sound ALSA: hda: Fix potential race in unsol event handler 2020-10-01 13:14:44 +02:00
tools perf mem2node: Avoid double free related to realloc 2020-10-01 13:14:43 +02:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: arm64: vgic-its: Fix memory leak on the error path of vgic_add_lpi() 2020-10-01 13:14:42 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-09-26 18:01:31 +02:00
Makefile Linux 4.19.148 2020-09-26 18:01:33 +02:00
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