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CVE-2011-2183

Published: 6 October 2011

Race condition in the scan_get_next_rmap_item function in mm/ksm.c in the Linux kernel before 2.6.39.3, when Kernel SamePage Merging (KSM) is enabled, allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a crafted application.

From the Ubuntu Security Team

Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service.

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
hardy Not vulnerable

lucid
Released (2.6.32-34.77)
maverick
Released (2.6.35-31.62)
natty
Released (2.6.38-13.52)
oneiric Not vulnerable
(3.0-2.3)
precise Not vulnerable
(3.1.0-1.1)
quantal Not vulnerable

saucy Not vulnerable

trusty Not vulnerable
(3.11.0-12.19)
upstream
Released (3.0~rc4)
Patches:
Introduced by

f8af4da3b4c14e7267c4ffb952079af3912c51c5

Fixed by 2b472611a32a72f4a118c069c2d62a1a3f087afd
linux-ec2
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-318.38)
maverick Ignored
(binary supplied by "linux" now)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.0~rc4)
linux-flo
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist
(trusty was not-affected [3.4.0-1.3])
upstream
Released (3.0~rc4)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.0~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.4.0-1.7])
upstream
Released (3.0~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.1.10-8.28])
upstream
Released (3.0~rc4)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.35-31.62~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.0~rc4)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.38-13.52~lucid1)
maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.0~rc4)
linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Not vulnerable

maverick Does not exist

natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.0~rc4)
linux-maguro
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.0.0-3.18])
upstream
Released (3.0~rc4)
linux-mako
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.4.0-3.21])
upstream
Released (3.0~rc4)
linux-manta
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was not-affected [3.4.0-4.19])
upstream
Released (3.0~rc4)
linux-mvl-dove
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid
Released (2.6.32-218.35)
maverick
Released (2.6.32-418.35)
natty Does not exist

oneiric Does not exist

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.0~rc4)
linux-ti-omap4
Launchpad, Ubuntu, Debian
hardy Does not exist

lucid Does not exist

maverick
Released (2.6.35-903.26)
natty
Released (2.6.38-1209.17)
oneiric Not vulnerable
(3.0.0-1200.1)
precise Not vulnerable
(3.0.0-1401.2)
quantal Not vulnerable

saucy Not vulnerable

trusty Does not exist

upstream
Released (3.0~rc4)