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Bug 1083270 - (CVE-2013-7348) CVE-2013-7348 kernel: aio: double free in ioctx_alloc
CVE-2013-7348 kernel: aio: double free in ioctx_alloc
Status: CLOSED NOTABUG
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=20131119,repor...
: Security
Depends On: 1083271
Blocks: 1083273
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Reported: 2014-04-01 15:21 EDT by Petr Matousek
Modified: 2015-07-31 03:17 EDT (History)
31 users (show)

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Doc Type: Bug Fix
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Last Closed: 2014-04-01 15:22:25 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Petr Matousek 2014-04-01 15:21:19 EDT 
ioctx_alloc() calls aio_setup_ring() to allocate a ring. If aio_setup_ring() fails to do so it would call aio_free_ring() before returning, but ioctx_alloc() would call aio_free_ring() again causing a double free of the ring. 

Upstream fix:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d558023207e008a4476a3b7bb8706b2a2bf5d84f

References:
http://seclists.org/oss-sec/2014/q1/711
Comment 1 Petr Matousek 2014-04-01 15:22:25 EDT 
Statement:

Not vulnerable.

This issued does not affect Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.
Comment 2 Petr Matousek 2014-04-01 15:22:59 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1083271]
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