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CVE-2007-3732

Published: 7 November 2019

In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that "current" references work. Without this, "current" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash.

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support
Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
precise Not vulnerable
(3.1.0-1.1)
trusty Not vulnerable
(3.11.0-12.19)
upstream
Released (2.6.23~rc1)
wily Not vulnerable
(3.19.0-15.15)
xenial Not vulnerable
(4.2.0-16.19)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by a10d9a71bafd3a283da240d2868e71346d2aef6f
linux-armadaxp
Launchpad, Ubuntu, Debian
precise Not vulnerable
(3.2.0-1600.1)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-flo
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected [3.4.0-3.10])
upstream
Released (2.6.23~rc1)
wily Not vulnerable
(3.4.0-3.10)
xenial Not vulnerable
(3.4.0-5.22)
linux-goldfish
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected [3.4.0-3.14])
upstream
Released (2.6.23~rc1)
wily Not vulnerable
(3.4.0-3.14)
xenial Not vulnerable
(3.4.0-4.27)
linux-grouper
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
precise Ignored
(abandoned)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
precise Ignored
(abandoned)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
precise Ignored
(abandoned)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
precise Ignored
(end-of-life)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

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

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
precise Ignored
(end-of-life)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
precise Not vulnerable
(3.13.0-24.46~precise1)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

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

trusty Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

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

trusty Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected [4.2.0-18.22~14.04.1])
upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

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

trusty Does not exist
(trusty was ignored)
upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

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

trusty Does not exist
(trusty was not-affected [3.4.0-3.14])
upstream
Released (2.6.23~rc1)
wily Not vulnerable
(3.4.0-5.28)
xenial Not vulnerable
(3.4.0-7.40)
linux-manta
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist
(trusty was not-affected [3.4.0-6.25])
upstream
Released (2.6.23~rc1)
wily Not vulnerable
(3.4.0-6.25)
xenial Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
precise Ignored
(abandoned)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist

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

trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Not vulnerable
(4.2.0-1008.12)
xenial Not vulnerable
(4.2.0-1013.19)
linux-ti-omap4
Launchpad, Ubuntu, Debian
precise Not vulnerable
(3.0.0-1401.2)
trusty Does not exist

upstream
Released (2.6.23~rc1)
wily Does not exist

xenial Does not exist