CVE-2011-2689

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.0-rc1

Description The issue allows local users to cause a denial of service, resulting in a system crash, by arranging for all resource groups to have too little free space. This is due to the gfs2 fallocate function in fs/gfs2/file.c not ensuring that the size of a chunk allocation is a multiple of the block size.

Recommendations For Linux kernel versions prior to 3.0-rc1, update to version 3.0-rc1 or later to resolve the issue. As a temporary workaround, consider restricting access to the gfs2 fallocate function to minimize the risk of exploitation.