The kernel is vulnerable to denial of service (DoS). The attack is due to Numerous reference count leaks in the Linux kernel’s block layer I/O context handling implementation. This 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=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bfdc0b497faa82a0ba2f9dddcf109231dd519fcc
www.openwall.com/lists/oss-security/2011/10/26/10
access.redhat.com/errata/RHSA-2012:0481
access.redhat.com/security/updates/classification/#moderate
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.2_Technical_Notes/kernel.html#RHSA-2012-0481
github.com/torvalds/linux/commit/bfdc0b497faa82a0ba2f9dddcf109231dd519fcc