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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).

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.

Priority

Medium

Status

Package Release Status
linux-flo
Launchpad, Ubuntu, Debian
vivid Not vulnerable

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.15~rc1)
utopic Not vulnerable

wily Not vulnerable

lucid Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
vivid Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc1)
wily Not vulnerable
(4.2.0-1008.12)
linux-armadaxp
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Not vulnerable

trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-fsl-imx51
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.15~rc1)
utopic Not vulnerable

vivid Not vulnerable

wily Not vulnerable

linux-grouper
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.15~rc1)
utopic Ignored
(end of life)
vivid Does not exist

wily Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Not vulnerable

trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life, was needs-triage)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.11.0-23.40~precise1)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.13.0-27.50~precise1)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-mako
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.15~rc1)
utopic Not vulnerable

vivid Not vulnerable

wily Not vulnerable

linux-manta
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.15~rc1)
utopic Not vulnerable

vivid Not vulnerable

wily Not vulnerable

linux-qcm-msm
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
precise Not vulnerable

trusty Does not exist

utopic Does not exist

vivid Does not exist

wily Does not exist

lucid Does not exist

upstream
Released (3.15~rc1)
linux
Launchpad, Ubuntu, Debian
lucid Not vulnerable

precise Not vulnerable

trusty
Released (3.13.0-27.50)
upstream
Released (3.15~rc1)
utopic Not vulnerable
(3.15.0-1.5)
vivid Not vulnerable
(3.16.0-23.31)
wily Not vulnerable
(3.19.0-15.15)
Patches:
Introduced by

f5ea110044fa858925a880b4fa9f551bfa2dfc38

Fixed by c88547a8119e3b581318ab65e9b72f27f23e641d
linux-ec2
Launchpad, Ubuntu, Debian
lucid Not vulnerable

precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-mvl-dove
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc1)
utopic Does not exist

vivid Does not exist

wily Does not exist