CVE-2009-2908

The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux
kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS)
and possibly execute arbitrary code via unspecified vectors that cause a
“negative dentry” and trigger a NULL pointer dereference, as demonstrated
via a Mutt temporary directory in an eCryptfs mount.

Bugs

• <https://bugs.launchpad.net/ecryptfs/+bug/387073&gt;
• <https://bugzilla.redhat.com/show_bug.cgi?id=527534&gt;