CVE-2016-2545 (retired)

Priority
Description
The snd_timer_interrupt function in sound/core/timer.c in the Linux kernel
before 4.4.1 does not properly maintain a certain linked list, which allows
local users to cause a denial of service (race condition and system crash)
via a crafted ioctl call.
Ubuntu-Description
Dmitry Vyukov discovered a race condition in the timer handling
implementation of the Advanced Linux Sound Architecture (ALSA) framework,
resulting in a use-after-free. A local attacker could use this to cause a
denial of service (system crash).
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
Source: linux (LP Ubuntu Debian)
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):released (3.2.0-102.142)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-4.19)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2Fixed by ee8413b01045c74340aa13ad5bdf905de32be736
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was released [3.2.0-1665.90])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
This package is not directly supported by the Ubuntu Security Team
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Package
linux-krillin:ignored (was needed now end-of-life)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Patches:
This package is not directly supported by the Ubuntu Security Team
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [end-of-life])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
This package is not directly supported by the Ubuntu Security Team
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):released (3.13.0-83.127~precise1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):ignored (abandoned)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was ignored [abandoned])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.4)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1012.12)
Package
Upstream:released (4.5~rc1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was released [3.2.0-1480.106])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
linux-vegetahd:ignored (was needed now end-of-life)
More Information

Updated: 2019-08-23 09:10:00 UTC (commit 436fd4ed4cf0038ddd382cb8649607ace163dda7)