|Description||The ext4_fill_super function in fs/ext4/super.c in the Linux kernel 2.6.27 before 184.108.40.206 and 2.6.28 before 220.127.116.11 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.|
|Source||CVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)|
|NVD severity||medium (attack range: local)|
|Debian/stable||not known to be vulnerable.|
|Debian/testing||not known to be vulnerable.|
|Debian/unstable||not known to be vulnerable.|
Vulnerable and fixed packages
The table below lists information on source packages.
|linux-2.6 (PTS)||squeeze (security), squeeze||2.6.32-48squeeze6||fixed|
The information below is based on the following data on fixed versions.
[etch] - linux-2.6 <not-affected> (ext4 not yet present)
Since the feature is experimental until 2.6.27, I don't think we need to fix this