gfs2 in the Linux kernel 2.6.18, and possibly other versions, does not properly handle when the gfs2_quota struct occupies two separate pages, which allows local users to cause a denial of service (kernel panic) via certain manipulations that cause an out-of-bounds write, as demonstrated by writing from an ext3 file system to a gfs2 file system.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10652
https://exchange.xforce.ibmcloud.com/vulnerabilities/58839
http://www.vmware.com/security/advisories/VMSA-2011-0003.html
http://www.securityfocus.com/archive/1/516397/100/0/threaded
http://www.openwall.com/lists/oss-security/2010/04/28/1