tree 49d2a92d72b5461fd9388b058d912368d0e85c9c
parent ec69bbfb9902c32a5c1492f2b1b8ad032a66d724
author Herbert Xu <herbert@gondor.apana.org.au> 1454506766 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> 1454743435 +0800

crypto: algif_skcipher - Do not dereference ctx without socket lock

Any access to non-constant bits of the private context must be
done under the socket lock, in particular, this includes ctx->req.

This patch moves such accesses under the lock, and fetches the
tfm from the parent socket which is guaranteed to be constant,
rather than from ctx->req.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>