original_kernel/sound/drivers
Takashi Iwai 8e6b1a72a7 ALSA: aloop: Fix access to not-yet-ready substream via cable
In loopback_open() and loopback_close(), we assign and release the
substream object to the corresponding cable in a racy way.  It's
neither locked nor done in the right position.  The open callback
assigns the substream before its preparation finishes, hence the other
side of the cable may pick it up, which may lead to the invalid memory
access.

This patch addresses these: move the assignment to the end of the open
callback, and wrap with cable->lock for avoiding concurrent accesses.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-22 10:40:27 +01:00
..
mpu401
opl3
opl4
pcsp
vx
Kconfig
Makefile
aloop.c ALSA: aloop: Fix access to not-yet-ready substream via cable 2018-03-22 10:40:27 +01:00
dummy.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-01-29 16:50:58 -08:00
ml403-ac97cr.c
mtpav.c
mts64.c
pcm-indirect2.c
pcm-indirect2.h
portman2x4.c
serial-u16550.c
virmidi.c