CVE-2016-9794

Priority
Low
Description
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.
Ubuntu-Description
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).
References
Notes
 jdstrand> android kernels (flo, goldfish, grouper, maguro, mako and manta) are
  not supported on the Ubuntu Touch 14.10 and earlier preview kernels
 jdstrand> linux-lts-saucy no longer receives official support
 jdstrand> linux-lts-quantal no longer receives official support
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.13.0-107.154~precise1)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
linux-vegetahd:needed
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (end-of-life)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Patches:
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.2.0-120.163)
Ubuntu 14.04 LTS (Trusty Tahr):released (3.13.0-107.154)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:pending (3.19.0-79.87)
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-59.80)
Ubuntu 16.10 (Yakkety Yak):not-affected (4.8.0-11.12)
Ubuntu 17.04 (Zesty Zapus):needs-triage
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by 3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.2.0-1498.125)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (end-of-life)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):released (3.2.0-1681.108)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):released (4.4.0-59.80~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (end-of-life)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):pending (3.19.0-79.87~14.04.1)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:needed
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1040.47)
Ubuntu 16.10 (Yakkety Yak):not-affected (4.8.0-1012.14)
Ubuntu 17.04 (Zesty Zapus):needs-triage
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (4.4.0-1044.48)
Ubuntu 16.10 (Yakkety Yak):needed
Ubuntu 17.04 (Zesty Zapus):needs-triage
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 16.10 (Yakkety Yak):needs-triage
Ubuntu 17.04 (Zesty Zapus):needs-triage
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):ignored (abandoned)
Ubuntu 14.04 LTS (Trusty Tahr):DNE
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored (end-of-life)
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Ubuntu 16.10 (Yakkety Yak):DNE
Ubuntu 17.04 (Zesty Zapus):DNE
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 16.10 (Yakkety Yak):needs-triage
Ubuntu 17.04 (Zesty Zapus):needs-triage
Package
linux-krillin:needed
Package
Upstream:released (4.7~rc1)
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Ubuntu 14.04 LTS (Trusty Tahr):ignored
Ubuntu Touch 15.04:DNE
Ubuntu Core 15.04:DNE
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 16.10 (Yakkety Yak):needs-triage
Ubuntu 17.04 (Zesty Zapus):needs-triage
More Information

Updated: 2017-01-12 20:14:16 UTC (commit 11953)