AuxXxilium/linux_dsm_epyc7002
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9d4d207d13
linux_dsm_epyc7002/sound
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Takashi Iwai 9d4d207d13 ALSA: timer: Assure timer resolution access always locked 
There are still many places calling the timer's hw.c_resolution
callback without lock, and this may lead to some races, as we faced in
the commit a820ccbe21 ("ALSA: pcm: Fix UAF at PCM release via PCM
timer access").

This patch changes snd_timer_resolution() to take the timer->lock for
avoiding the races.  A place calling this function already inside the
lock (from the notifier) is replaced with the
snd_timer_hw_resolution() accordingly, as well as wrapping with the
lock around another place calling snd_timer_hw_resolution(), too.

Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-05-18 08:49:13 +02:00
..
ac97 ALSA: ac97: kconfig: Remove select of undefined symbol AC97 2018-02-12 08:16:39 +01:00
aoa
arm Merge remote-tracking branches 'asoc/topic/ac97', 'asoc/topic/ac97-mfd', 'asoc/topic/amd' and 'asoc/topic/arizona-mfd' into asoc-next 2017-11-10 21:31:02 +00:00
atmel
core ALSA: timer: Assure timer resolution access always locked 2018-05-18 08:49:13 +02:00
drivers ALSA: aloop: Add missing cable lock to ctl API callbacks 2018-04-30 10:06:48 +02:00
firewire ALSA: dice: fix kernel NULL pointer dereference due to invalid calculation for array index 2018-04-29 09:06:39 +02:00
hda ALSA: hda: Copying sync power state helper to core 2018-02-12 13:59:39 +01:00
i2c ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
isa ALSA: gus: Delete an error message for a failed memory allocation in snd_gf1_dma_transfer_block() 2017-11-29 09:29:36 +01:00
mips ALSA: sgio2audio: Improve a size determination in snd_sgio2audio_create() 2017-11-29 09:29:31 +01:00
oss vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
parisc
pci ALSA: hda/realtek - Clevo P950ER ALC1220 Fixup 2018-05-13 18:55:46 +02:00
pcmcia
ppc
sh
soc ASoC: Fixes for v4.17 2018-04-25 12:22:20 +02:00
sparc
spi
synth ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
usb ALSA: usb-audio: Use Class Specific EP for UAC3 devices. 2018-05-15 07:29:10 +02:00
x86 ALSA: x86: Fix potential crash at error path 2018-02-28 08:46:00 +01:00
ac97_bus.c
Kconfig ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
last.c
Makefile ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
sound_core.c sound: Remove leftover msnd init declarations 2018-01-11 17:10:34 +01:00