CVE-2011-1090

Published: 09 May 2011

The __nfs4_proc_set_acl function in fs/nfs/nfs4proc.c in the Linux kernel before 2.6.38 stores NFSv4 ACL data in memory that is allocated by kmalloc but not properly freed, which allows local users to cause a denial of service (panic) via a crafted attempt to set an ACL.

From the Ubuntu security team

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount 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 (2.6.38~rc8)
Patches:
Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e9e3d724e2145f5039b423c290ce2b2c3d8f94bc
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)
linux-lts-backport-maverick
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)
linux-lts-backport-natty
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (2.6.38~rc8)