kernel is vulnerable to denial of service. Inconsistency in the methods for allocating and freeing NFSv4 ACL data and the way mapping expansions were handled could allow a local, unprivileged user to cause a denial of service.
ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d0de4dc584ec6aa3b26fffea320a8457827768fc
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d0de4dc584ec6aa3b26fffea320a8457827768fc
www.openwall.com/lists/oss-security/2011/04/11/1
access.redhat.com/errata/RHSA-2011:1253
access.redhat.com/security/updates/classification/#important
bugzilla.redhat.com/show_bug.cgi?id=691793
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_MRG/2.0/html/Technical_Notes/index.html
github.com/torvalds/linux/commit/d0de4dc584ec6aa3b26fffea320a8457827768fc