Integer overflow in the btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the Linux kernel before 2.6.35 might allow local users to obtain sensitive information via a BTRFS_IOC_CLONE_RANGE ioctl call.
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2ebc3464781ad24474abcbd2274e6254689853b5
lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
secunia.com/advisories/42758
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
www.openwall.com/lists/oss-security/2010/07/21/10
www.openwall.com/lists/oss-security/2010/07/21/4
www.securityfocus.com/bid/41854
www.ubuntu.com/usn/USN-1041-1
www.vupen.com/english/advisories/2011/0070
bugzilla.redhat.com/show_bug.cgi?id=616998