oss-security - CVE request: kernel: gfs2: rename cases kernel panic

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Message-ID: <4C563A5F.20503@redhat.com>
Date: Mon, 02 Aug 2010 11:24:15 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>
Subject: CVE request: kernel: gfs2: rename cases kernel panic

The problem was in the way the gfs2 directory code was trying to re-use
sentinel directory entries. A local, unprivileged user on a gfs2 mounted 
directory can trigger this issue, resulting in a NULL pointer dereference.

https://bugzilla.redhat.com/show_bug.cgi?id=620300

Introduced in upstream commit 71b86f56 (v2.6.19-rc1), and fixed in 
commit 728a756b.

http://git.kernel.org/linus/71b86f562b5eb6f94ea00bba060caa64d0137969
http://git.kernel.org/linus/728a756b8fcd22d80e2dbba8117a8a3aafd3f203

Thanks, Eugene
-- 
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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