Bug 824178 - (CVE-2012-2384) CVE-2012-2384 kernel: drm/i915: integer overflow in i915_gem_do_execbuffer()
CVE-2012-2384 kernel: drm/i915: integer overflow in i915_gem_do_execbuffer()
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20120423,repor...
: Security
Depends On: 824561 824563 824564 824565
Blocks: 824180
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Reported: 2012-05-22 17:48 EDT by Petr Matousek
Modified: 2016-03-04 06:08 EST (History)
24 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-08-24 08:39:57 EDT
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Description Petr Matousek 2012-05-22 17:48:06 EDT
Description of the problem:
On 32-bit systems, a large args->num_cliprects from userspace via ioctl may overflow the allocation size, leading to out-of-bounds access.

References:
http://www.openwall.com/lists/oss-security/2012/05/21/1

Upstream fix:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=44afb3a04391a74309d16180d1e4f8386fdfa745
Comment 1 Josh Boyer 2012-05-23 12:03:39 EDT
FYI.  This was fixed in 3.3.5 (stable commit 4a265435c87b19175c3906ff49ffe5bf4a4cc228).  All Fedora branches are on that or newer already.
Comment 2 Josh Boyer 2012-05-23 12:04:15 EDT
Sorry, that should have been stable commit 9f4660213e58b3b78dc75bf3e3b4126dbe9a0b14
Comment 5 Petr Matousek 2012-07-04 01:33:30 EDT
Statement:

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2. This issue was addressed in Red Hat Enterprise Linux 6 via RHSA-2012:1304 https://rhn.redhat.com/errata/RHSA-2012-1304.html.
Comment 6 errata-xmlrpc 2012-09-25 14:59:53 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:1304 https://rhn.redhat.com/errata/RHSA-2012-1304.html

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