CVE-2014-7283

Published: 13 October 2014

The xfs_da3_fixhashpath function in fs/xfs/xfs_da_btree.c in the xfs implementation in the Linux kernel before 3.14.2 does not properly compare btree hash values, which allows local users to cause a denial of service (filesystem corruption, and OOPS or panic) via operations on directories that have hash collisions, as demonstrated by rmdir operations.

From the Ubuntu security team

Hannes Frederic Sowa reported a hash collision ordering problem in the xfs filesystem in the Linux kernel. A local user could exploit this flaw to cause filesystem corruption and a denial of service (oops or panic).

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (3.13.0-27.50)
Patches:
Introduced by f5ea110044fa858925a880b4fa9f551bfa2dfc38
Fixed by c88547a8119e3b581318ab65e9b72f27f23e641d
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was ignored)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.15~rc1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.04 preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support
per Debian, introduced in 3.10
reproducer: http://oss.sgi.com/cgi-bin/gitweb.cgi?p=xfs/cmds/xfstests.git;a=commitdiff;h=947ee8bd4b59770534297572b14c695e9c6e001e
per apw, this was fixed in passing in 3.13.0-39.66~precise1, part of
https://ubuntu.com/security/notices/USN-2394-1, but not documented in the changelog or
the USN.

References

Bugs