]> git.baikalelectronics.ru Git - kernel.git/commit
crypto: algif_skcipher - Do not dereference ctx without socket lock
authorHerbert Xu <herbert@gondor.apana.org.au>
Wed, 3 Feb 2016 13:39:26 +0000 (21:39 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Sat, 6 Feb 2016 07:23:55 +0000 (15:23 +0800)
commitc2371fa872c2373bbb5232c391355e477371c47b
tree49d2a92d72b5461fd9388b058d912368d0e85c9c
parentf831b780cd8739050f60b1ab11765a819e044a82
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>
crypto/algif_skcipher.c