On Wed, Jan 13, 2016 at 11:25 AM, Dmitry Vyukov [off-list ref] wrote:

On Wed, Jan 13, 2016 at 7:57 AM, Herbert Xu [off-list ref]
wrote:

quoted

On Tue, Jan 12, 2016 at 07:31:03PM +0100, Dmitry Vyukov wrote:

quoted

The following program triggers use-after-free in
hash_sock_destruct_common. This is on master of
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git
(cd7e98414462b9db70067ac29896c58210b13b69). I've also seen a similar
crash in skcipher_sock_destruct_common.

OK the new compatibility nokey path introduced some new problems.
Please try the following patches.

Yes, these 4 patches fix the crash for me. Thanks for quick fix!

Tested-by: Dmitry Vyukov <dvyukov@google.com>

Oops, resending as plain text.