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Takashi Iwai e5312ef761 ALSA: rawmidi: Access runtime->avail always in spinlock 
commit 88a06d6fd6b369d88cec46c62db3e2604a2f50d5 upstream.

The runtime->avail field may be accessed concurrently while some
places refer to it without taking the runtime->lock spinlock, as
detected by KCSAN.  Usually this isn't a big problem, but for
consistency and safety, we should take the spinlock at each place
referencing this field.

Reported-by: syzbot+a23a6f1215c84756577c@syzkaller.appspotmail.com
Reported-by: syzbot+3d367d1df1d2b67f5c19@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20201206083527.21163-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-03-16 16:43:53 +08:00
Documentation x86/CPU/AMD: Save AMD NodeId as cpu_die_id 2021-03-16 16:43:47 +08:00
LICENSES Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
arch powerpc/bitops: Fix possible undefined behaviour with fls() and fls64() 2021-03-16 16:43:50 +08:00
block scsi: block: Fix a race in the runtime power management code 2021-03-16 16:43:51 +08:00
certs Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
crypto crypto: ecdh - avoid unaligned accesses in ecdh_set_secret() 2021-03-16 16:43:29 +08:00
drivers media: gp8psk: initialize stats at power control logic 2021-03-16 16:43:53 +08:00
fs f2fs: fix shift-out-of-bounds in sanity_check_raw_super() 2021-03-16 16:43:53 +08:00
include of: fix linker-section match-table corruption 2021-03-16 16:43:52 +08:00
init initramfs: fix clang build failure 2021-03-16 16:43:21 +08:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2021-03-16 16:27:51 +08:00
kernel cgroup: Fix memory leak when parsing multiple source parameters 2021-03-16 16:43:52 +08:00
lib lib/syscall: fix syscall registers retrieval on 32-bit platforms 2021-03-16 16:42:06 +08:00
mm mm: don't wake kswapd prematurely when watermark boosting is disabled 2021-03-16 16:43:15 +08:00
net net/sched: sch_taprio: reset child qdiscs before freeing them 2021-03-16 16:43:47 +08:00
package config/arm64: OPEN CONFIG_PSI and phytium configs 2021-03-16 11:02:59 +08:00
samples samples: bpf: Fix lwt_len_hist reusing previous BPF map 2021-03-16 16:42:53 +08:00
scripts kconfig: fix return value of do_error_if() 2021-03-16 16:43:19 +08:00
security ima: Don't modify file descriptor mode on the fly 2021-03-16 16:43:35 +08:00
sound ALSA: rawmidi: Access runtime->avail always in spinlock 2021-03-16 16:43:53 +08:00
tools tools headers UAPI: Sync linux/const.h with the kernel headers 2021-03-16 16:43:51 +08:00
usr Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
virt KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace 2021-03-16 16:41:35 +08:00
.clang-format Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.cocciconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.get_maintainer.ignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitattributes Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
COPYING Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
CREDITS Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kbuild Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2021-03-16 16:34:24 +08:00
Makefile Kbuild: do not emit debug info for assembly with LLVM_IAS=1 2021-03-16 16:42:09 +08:00
README Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
README.md Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
backport_remove_lists.txt Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
tools_key.pub Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00

README.md

Tencent Linux Kernel 4.0