CVE-2016-2544

Published: 24 February 2016

Race condition in the queue_delete function in sound/core/seq/seq_queue.c in the Linux kernel before 4.4.1 allows local users to cause a denial of service (use-after-free and system crash) by making an ioctl call at a certain time.

From the Ubuntu security team

Dmitry Vyukov discovered that a race condition existed in the Advanced Linux Sound Architecture (ALSA) framework between timer setup and closing of the client, resulting in a use-after-free. A local attacker could use this to cause a denial of service.

Priority

Medium

CVSS 3 base score: 5.1

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 3567eb6af614dac436c4b16a8d426f9faed639b3
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.5~rc1)