oss-security - CVE request - Linux kernel: evm: NULL pointer de-reference flaw

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Message-ID: <alpine.LFD.2.03.1302202337560.6910@erqung.pbz>
Date: Thu, 21 Feb 2013 00:39:10 +0530 (IST)
From: P J P <ppandit@...hat.com>
To: oss-security@...ts.openwall.com
Subject: CVE request - Linux kernel: evm: NULL pointer de-reference flaw

   Hello,

Linux kernel built with Extended Verification Module(EVM) and configured 
properly, is vulnerable to a NULL pointer de-reference flaw, caused by 
accessing extended attribute routines of sockfs inode object.

An unprivileged user/program could use this to crash the kernel, resulting in 
DoS.

Upstream fix:
  -> https://git.kernel.org/linus/a67adb997419fb53540d4a4f79c6471c60bc69b6

Reference:
  -> https://bugzilla.redhat.com/show_bug.cgi?id=913266

Thank you.
--
Prasad J Pandit / Red Hat Security Response Team
DB7A 84C5 D3F9 7CD1 B5EB  C939 D048 7860 3655 602B

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