linux_dsm_epyc7002/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 ALSA: drivers: Convert timers to use timer_setup() 2017-10-24 21:01:16 +02:00
opl3 ASoC: Updates for v4.15 2017-11-13 15:45:57 +01:00
opl4 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcsp License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vx ALSA: vx: Put missing KERN_CONT prefix 2017-08-31 11:01:17 +02:00
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
Kconfig ALSA: seq: Allow the modular sequencer registration 2017-06-12 08:43:33 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ml403-ac97cr.c ALSA: drivers: constify snd_pcm_ops structures 2017-08-19 11:02:15 +02:00
mtpav.c ALSA: drivers: Convert timers to use timer_setup() 2017-10-24 21:01:16 +02:00
mts64.c ALSA: drivers: Constify snd_rawmidi_ops 2017-01-12 12:50:06 +01:00
pcm-indirect2.c
pcm-indirect2.h
portman2x4.c ALSA: drivers: Constify snd_rawmidi_ops 2017-01-12 12:50:06 +01:00
serial-u16550.c ALSA: drivers: Convert timers to use timer_setup() 2017-10-24 21:01:16 +02:00
virmidi.c