Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge...

Vulnerability Description

Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service (system crash) or possibly gain privileges by interacting with a hugetlbfs filesystem, as demonstrated by a umount operation that triggers improper handling of quota data.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=90481622d75715bfcb68501280a917dbfe516029
• http://www.debian.org/security/2012/dsa-2469
• https://bugzilla.redhat.com/show_bug.cgi?id=817430
• http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
• http://www.openwall.com/lists/oss-security/2012/04/24/12
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.6
• http://www.securityfocus.com/bid/53233
• https://exchange.xforce.ibmcloud.com/vulnerabilities/75168
• https://github.com/torvalds/linux/commit/90481622d75715bfcb68501280a917dbfe516029