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CVE-2009-0748

Description

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate the superblock configuration, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) by attempting to mount a crafted ext4 filesystem.

POC

Reference

- http://bugzilla.kernel.org/show_bug.cgi?id=12371

- http://www.ubuntu.com/usn/usn-751-1

- http://www.vmware.com/security/advisories/VMSA-2009-0016.html

Github

No PoCs found on GitHub currently.