CVE-2011-2689

Published: 28 July 2011

The gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel before 3.0-rc1 does not ensure that the size of a chunk allocation is a multiple of the block size, which allows local users to cause a denial of service (BUG and system crash) by arranging for all resource groups to have too little free space.

From the Ubuntu security team

It was discovered that GFS2 did not correctly check block sizes. A local attacker could exploit this to crash the system, leading to a denial of service.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(3.11.0-12.19)
Patches:
Introduced by 3921120e757f9167f3fcd3a1781239824471b14d
Fixed by 6905d9e4dda6112f007e9090bca80507da158e63
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-1.3])
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-1.7])
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.1.10-8.28])
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-backport-oneiric
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.0.0-3.18])
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-3.21])
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.4.0-4.19])
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.0~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist