The cleanup_journal_tail function in the Journaling Block Device (JBD) functionality...

Vulnerability Description

The cleanup_journal_tail function in the Journaling Block Device (JBD) functionality in the Linux kernel 2.6 allows local users to cause a denial of service (assertion error and kernel oops) via an ext3 or ext4 image with an "invalid log first block value."

References

• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=8762202dd0d6e46854f786bdb6fb3780a1625efe
• http://secunia.com/advisories/48898
• http://securitytracker.com/id?1026325
• http://www.securityfocus.com/bid/50663
• http://www.openwall.com/lists/oss-security/2011/11/11/6
• http://xorl.wordpress.com/2011/12/08/cve-2011-4132-linux-kernel-jbdjbd2-local-dos/
• https://bugzilla.redhat.com/show_bug.cgi?id=753341
• http://www.openwall.com/lists/oss-security/2011/11/13/4
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html