Description

drivers/gpu/drm/i915/i915_gem.c in the Graphics Execution Manager (GEM) in the Intel i915 driver in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.36 does not properly validate pointers to blocks of memory, which allows local users to write to arbitrary kernel memory locations, and consequently gain privileges, via crafted use of the ioctl interface, related to (1) pwrite and (2) pread operations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ce9d419dbecc292cc3e06e8b1d6d123d3fa813a4

http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.html

http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html

http://secunia.com/advisories/42745

http://secunia.com/advisories/42758

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36

http://www.redhat.com/support/errata/RHSA-2010-0842.html

http://www.redhat.com/support/errata/RHSA-2010-0958.html

http://www.securityfocus.com/bid/44067

http://www.ubuntu.com/usn/USN-1041-1

http://www.vupen.com/english/advisories/2010/3321

http://www.vupen.com/english/advisories/2011/0070

http://www.vupen.com/english/advisories/2011/0298

https://bugzilla.redhat.com/show_bug.cgi?id=637688

Details

Risk Information

CVSS v2