Takashi Iwai 99e295d290 ALSA: seq: Make ioctls race-free ... commit b3defb791b26ea0683a93a4f49c77ec45ec96f10 upstream. The ALSA sequencer ioctls have no protection against racy calls while the concurrent operations may lead to interfere with each other. As reported recently, for example, the concurrent calls of setting client pool with a combination of write calls may lead to either the unkillable dead-lock or UAF. As a slightly big hammer solution, this patch introduces the mutex to make each ioctl exclusive. Although this may reduce performance via parallel ioctl calls, usually it's not demanded for sequencer usages, hence it should be negligible. Reported-by: Luo Quan <a4651386@163.com> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> [bwh: Backported to 4.4: ioctl dispatch is done from snd_seq_do_ioctl(); take the mutex and add ret variable there.] Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-07-27 21:45:59 +02:00
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aoa
arm	ASoC: fix broken pxa SoC support	2015-10-22 14:37:50 -07:00
atmel
core	ALSA: seq: Make ioctls race-free	2019-07-27 21:45:59 +02:00
drivers	ALSA: dummy: Fix a use-after-free at closing	2019-07-27 21:41:56 +02:00
firewire
i2c
isa
mips
oss
parisc
pci	This is the 3.10.102 stable release	2017-04-18 17:22:08 +02:00
pcmcia
ppc
sh
soc	sound: soc: msm8952_rt5659: Handle defer while probing	2019-07-27 21:45:58 +02:00
sparc
spi
synth	ALSA: synth: Fix conflicting OSS device registration on AWE32	2015-10-22 14:37:50 -07:00
usb	ALSA: usb-audio: Fix bogus error return in snd_usb_create_stream()	2019-07-27 21:42:55 +02:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c
sound_firmware.c