The encode_share_access function in fs/nfs/nfs4xdr.c in the Linux kernel before 2.6.29 allows local users to cause a denial of service (BUG and system crash) by using the mknod system call with a pathname on an NFSv4 filesystem.
ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=dc0b027dfadfcb8a5504f7d8052754bf8d501ab9
www.openwall.com/lists/oss-security/2012/02/06/3
bugzilla.redhat.com/show_bug.cgi?id=755440
github.com/torvalds/linux/commit/dc0b027dfadfcb8a5504f7d8052754bf8d501ab9