CVE-2013-2015 Information

Description

The ext4_orphan_del function in fs/ext4/namei.c in the Linux kernel before 3.7.3 does not properly handle orphan-list entries for non-journal filesystems which allows physically proximate attackers to cause a denial of service (system hang) via a crafted filesystem on removable media as demonstrated by the e2fsprogs tests/f_orphan_extents_inode/image.gz test.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0e9a9a1ad619e7e987815d20262d36a2f95717ca http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.3 http://www.openwall.com/lists/oss-security/2013/04/26/16 https://bugzilla.redhat.com/show_bug.cgi?id=957123 https://github.com/torvalds/linux/commit/0e9a9a1ad619e7e987815d20262d36a2f95717ca