PublicDateAtUSN: 2011-10-28
Candidate: CVE-2011-3638
PublicDate: 2013-03-01 12:37:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3638
 https://ubuntu.com/security/notices/USN-1294-1
 https://ubuntu.com/security/notices/USN-1299-1
 https://ubuntu.com/security/notices/USN-1311-1
Description:
 fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified
 extent as dirty in certain cases of extent splitting, which allows local
 users to cause a denial of service (system crash) via vectors involving
 ext4 umount and mount operations.
Ubuntu-Description:
 Zheng Liu discovered a flaw in how the ext4 filesystem splits extents. A
 local unprivileged attacker could exploit this to crash the system, leading
 to a denial of service.
Notes:
 tyhicks> Introduced by 56055d3ae4cc7fa6d2b10885f20269de8a989ed7
Bugs:
 https://bugzilla.redhat.com/747942
 https://launchpad.net/bugs/887291
Priority: medium
Discovered-by: Zheng Liu
Assigned-to:
CVSS: 

Patches_linux:
 break-fix: 56055d3ae4cc7fa6d2b10885f20269de8a989ed7 667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
upstream_linux: released (3.0~rc1)
hardy_linux: ignored (was deferred [massive patch that requires significant backport effort] now end-of-life)
lucid_linux: released (2.6.32-37.81)
maverick_linux: ignored (reached end-of-life)
natty_linux: ignored (was deferred [massive patch that requires significant backport effort] now end-of-life)
oneiric_linux: not-affected (3.0-0.1)
precise_linux: not-affected (3.1.0-1.1)
quantal_linux: not-affected (3.4.0-1.1)
raring_linux: not-affected (3.7.0-0.5)
saucy_linux: not-affected (3.9.0-0.2)
trusty_linux: not-affected (3.11.0-12.19)
trusty/esm_linux: not-affected (3.11.0-12.19)
devel_linux: not-affected (3.13.0-24.46)

Patches_linux-ec2:
upstream_linux-ec2: released (3.0~rc1)
hardy_linux-ec2: DNE
lucid_linux-ec2: released (2.6.32-341.42)
maverick_linux-ec2: ignored (binary supplied by "linux" now)
natty_linux-ec2: DNE
oneiric_linux-ec2: DNE
precise_linux-ec2: DNE
quantal_linux-ec2: DNE
raring_linux-ec2: DNE
saucy_linux-ec2: DNE
trusty_linux-ec2: DNE
trusty/esm_linux-ec2: DNE
devel_linux-ec2: DNE

Patches_linux-mvl-dove:
upstream_linux-mvl-dove: released (3.0~rc1)
hardy_linux-mvl-dove: DNE
lucid_linux-mvl-dove: ignored (reached end-of-life)
maverick_linux-mvl-dove: ignored (reached end-of-life)
natty_linux-mvl-dove: DNE
oneiric_linux-mvl-dove: DNE
precise_linux-mvl-dove: DNE
quantal_linux-mvl-dove: DNE
raring_linux-mvl-dove: DNE
saucy_linux-mvl-dove: DNE
trusty_linux-mvl-dove: DNE
trusty/esm_linux-mvl-dove: DNE
devel_linux-mvl-dove: DNE

Patches_linux-ti-omap4:
upstream_linux-ti-omap4: released (3.0~rc1)
hardy_linux-ti-omap4: DNE
lucid_linux-ti-omap4: DNE
maverick_linux-ti-omap4: ignored (reached end-of-life)
natty_linux-ti-omap4: ignored (was deferred [massive patch that requires significant backport effort] now end-of-life)
oneiric_linux-ti-omap4: not-affected (3.0.0-1200.1)
precise_linux-ti-omap4: not-affected (3.0.0-1401.2)
quantal_linux-ti-omap4: not-affected
raring_linux-ti-omap4: not-affected
saucy_linux-ti-omap4: not-affected (3.5.0-223.34)
trusty_linux-ti-omap4: DNE
trusty/esm_linux-ti-omap4: DNE
devel_linux-ti-omap4: DNE

Patches_linux-lts-backport-maverick:
upstream_linux-lts-backport-maverick: released (3.0~rc1)
hardy_linux-lts-backport-maverick: DNE
lucid_linux-lts-backport-maverick: ignored (reached end-of-life)
maverick_linux-lts-backport-maverick: DNE
natty_linux-lts-backport-maverick: DNE
oneiric_linux-lts-backport-maverick: DNE
precise_linux-lts-backport-maverick: DNE
quantal_linux-lts-backport-maverick: DNE
raring_linux-lts-backport-maverick: DNE
saucy_linux-lts-backport-maverick: DNE
trusty_linux-lts-backport-maverick: DNE
trusty/esm_linux-lts-backport-maverick: DNE
devel_linux-lts-backport-maverick: DNE

Patches_linux-fsl-imx51:
upstream_linux-fsl-imx51: released (3.0~rc1)
hardy_linux-fsl-imx51: DNE
lucid_linux-fsl-imx51: ignored (reached end-of-life)
maverick_linux-fsl-imx51: DNE
natty_linux-fsl-imx51: DNE
oneiric_linux-fsl-imx51: DNE
precise_linux-fsl-imx51: DNE
quantal_linux-fsl-imx51: DNE
raring_linux-fsl-imx51: DNE
saucy_linux-fsl-imx51: DNE
trusty_linux-fsl-imx51: DNE
trusty/esm_linux-fsl-imx51: DNE
devel_linux-fsl-imx51: DNE

Patches_linux-lts-backport-natty:
upstream_linux-lts-backport-natty: released (3.0~rc1)
hardy_linux-lts-backport-natty: DNE
lucid_linux-lts-backport-natty: ignored (reached end-of-life)
maverick_linux-lts-backport-natty: DNE
natty_linux-lts-backport-natty: DNE
oneiric_linux-lts-backport-natty: DNE
precise_linux-lts-backport-natty: DNE
quantal_linux-lts-backport-natty: DNE
raring_linux-lts-backport-natty: DNE
saucy_linux-lts-backport-natty: DNE
trusty_linux-lts-backport-natty: DNE
trusty/esm_linux-lts-backport-natty: DNE
devel_linux-lts-backport-natty: DNE

Patches_linux-lts-backport-oneiric:
upstream_linux-lts-backport-oneiric: released (3.0~rc1)
hardy_linux-lts-backport-oneiric: DNE
lucid_linux-lts-backport-oneiric: released (3.0.0-5.6~lucid1)
maverick_linux-lts-backport-oneiric: DNE
natty_linux-lts-backport-oneiric: DNE
oneiric_linux-lts-backport-oneiric: DNE
precise_linux-lts-backport-oneiric: DNE
quantal_linux-lts-backport-oneiric: DNE
raring_linux-lts-backport-oneiric: DNE
saucy_linux-lts-backport-oneiric: DNE
trusty_linux-lts-backport-oneiric: DNE
trusty/esm_linux-lts-backport-oneiric: DNE
devel_linux-lts-backport-oneiric: DNE

Patches_linux-armadaxp:
upstream_linux-armadaxp: released (3.0~rc1)
hardy_linux-armadaxp: DNE
lucid_linux-armadaxp: DNE
natty_linux-armadaxp: DNE
oneiric_linux-armadaxp: DNE
precise_linux-armadaxp: not-affected (3.2.0-1600.1)
quantal_linux-armadaxp: not-affected (3.2.0-1602.5)
raring_linux-armadaxp: DNE
saucy_linux-armadaxp: DNE
trusty_linux-armadaxp: DNE
trusty/esm_linux-armadaxp: DNE
devel_linux-armadaxp: DNE

Patches_linux-lts-quantal:
upstream_linux-lts-quantal: released (3.0~rc1)
hardy_linux-lts-quantal: DNE
lucid_linux-lts-quantal: DNE
oneiric_linux-lts-quantal: DNE
precise_linux-lts-quantal: not-affected (3.5.0-18.29~precise1)
quantal_linux-lts-quantal: DNE
raring_linux-lts-quantal: DNE
saucy_linux-lts-quantal: DNE
trusty_linux-lts-quantal: DNE
trusty/esm_linux-lts-quantal: DNE
devel_linux-lts-quantal: DNE

Patches_linux-lts-raring:
upstream_linux-lts-raring: released (3.0~rc1)
hardy_linux-lts-raring: DNE
lucid_linux-lts-raring: DNE
oneiric_linux-lts-raring: DNE
precise_linux-lts-raring: not-affected (3.8.0-19.30~precise1)
quantal_linux-lts-raring: DNE
raring_linux-lts-raring: DNE
saucy_linux-lts-raring: DNE
trusty_linux-lts-raring: DNE
trusty/esm_linux-lts-raring: DNE
devel_linux-lts-raring: DNE

Patches_linux-lts-saucy:
upstream_linux-lts-saucy: released (3.0~rc1)
lucid_linux-lts-saucy: DNE
precise_linux-lts-saucy: not-affected (3.11.0-13.20~precise2)
quantal_linux-lts-saucy: DNE
raring_linux-lts-saucy: DNE
saucy_linux-lts-saucy: DNE
trusty_linux-lts-saucy: DNE
trusty/esm_linux-lts-saucy: DNE
devel_linux-lts-saucy: DNE

Patches_linux-goldfish:
upstream_linux-goldfish: released (3.0~rc1)
lucid_linux-goldfish: DNE
precise_linux-goldfish: DNE
quantal_linux-goldfish: DNE
saucy_linux-goldfish: ignored
trusty_linux-goldfish: not-affected (3.4.0-1.9)
trusty/esm_linux-goldfish: DNE (trusty was not-affected [3.4.0-1.9])
devel_linux-goldfish: not-affected (3.4.0-3.14)

Patches_linux-grouper:
upstream_linux-grouper: released (3.0~rc1)
lucid_linux-grouper: DNE
precise_linux-grouper: DNE
quantal_linux-grouper: DNE
saucy_linux-grouper: ignored
trusty_linux-grouper: not-affected (3.1.10-8.28)
trusty/esm_linux-grouper: DNE (trusty was not-affected [3.1.10-8.28])
devel_linux-grouper: not-affected (3.1.10-8.28)

Patches_linux-maguro:
upstream_linux-maguro: released (3.0~rc1)
lucid_linux-maguro: DNE
precise_linux-maguro: DNE
quantal_linux-maguro: DNE
saucy_linux-maguro: ignored
trusty_linux-maguro: not-affected (3.0.0-3.18)
trusty/esm_linux-maguro: DNE (trusty was not-affected [3.0.0-3.18])
devel_linux-maguro: DNE

Patches_linux-mako:
upstream_linux-mako: released (3.0~rc1)
lucid_linux-mako: DNE
precise_linux-mako: DNE
quantal_linux-mako: DNE
saucy_linux-mako: ignored
trusty_linux-mako: not-affected (3.4.0-3.21)
trusty/esm_linux-mako: DNE (trusty was not-affected [3.4.0-3.21])
devel_linux-mako: not-affected (3.4.0-5.28)

Patches_linux-manta:
upstream_linux-manta: released (3.0~rc1)
lucid_linux-manta: DNE
precise_linux-manta: DNE
quantal_linux-manta: DNE
saucy_linux-manta: ignored
trusty_linux-manta: not-affected (3.4.0-4.19)
trusty/esm_linux-manta: DNE (trusty was not-affected [3.4.0-4.19])
devel_linux-manta: not-affected (3.4.0-6.25)

Patches_linux-flo:
upstream_linux-flo: released (3.0~rc1)
lucid_linux-flo: DNE
precise_linux-flo: DNE
quantal_linux-flo: DNE
saucy_linux-flo: DNE
trusty_linux-flo: not-affected (3.4.0-1.3)
trusty/esm_linux-flo: DNE (trusty was not-affected [3.4.0-1.3])
devel_linux-flo: not-affected (3.4.0-3.10)

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (3.0~rc1)
lucid_linux-lts-trusty: DNE
precise_linux-lts-trusty: not-affected (3.13.0-24.46~precise1)
saucy_linux-lts-trusty: DNE
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE