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CVE-2016-9794

Published: 28 December 2016

Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command.

From the Ubuntu security team

Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash).

Priority

Low

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
precise
Released (3.2.0-120.163)
trusty
Released (3.13.0-107.154)
upstream
Released (4.7~rc1)
xenial
Released (4.4.0-59.80)
yakkety Not vulnerable
(4.8.0-11.12)
zesty Not vulnerable
(4.8.0-22.24)
linux-armadaxp
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was released [3.2.0-1681.108])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (4.7~rc1)
xenial
Released (4.4.0-1003.12)
yakkety Does not exist

zesty Does not exist

linux-flo
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.7~rc1)
xenial Ignored
(abandoned)
yakkety Ignored
(abandoned)
zesty Does not exist

linux-gke
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.7~rc1)
xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

zesty Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.7~rc1)
xenial Ignored
(abandoned)
yakkety Ignored
(abandoned)
zesty Ignored
(abandoned)
linux-grouper
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.7~rc1)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.7~rc1)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [end-of-life])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [end-of-life])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [end-of-life])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
precise
Released (3.13.0-107.154~precise1)
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was released [3.19.0-79.87~14.04.1])
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored [out of standard support])
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (4.4.0-59.80~14.04.1)
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-mako
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.7~rc1)
xenial Ignored
(abandoned)
yakkety Ignored
(abandoned)
zesty Does not exist

linux-manta
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was ignored [abandoned])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.7~rc1)
xenial
Released (4.4.0-1040.47)
yakkety Not vulnerable
(4.8.0-1012.14)
zesty Not vulnerable
(4.8.0-1013.15)
linux-snapdragon
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (4.7~rc1)
xenial
Released (4.4.0-1044.48)
yakkety
Released (4.4.0-1046.50)
zesty Not vulnerable
(4.4.0-1046.50)
linux-ti-omap4
Launchpad, Ubuntu, Debian
precise Does not exist
(precise was released [3.2.0-1498.125])
trusty Does not exist

upstream
Released (4.7~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist