commit 77dbd7a95e4a4f15264c333a9e9ab97ee27dc2aa
author Herbert Xu <herbert@gondor.apana.org.au> Sun Sep 08 14:33:50 2013 +1000
committer Herbert Xu <herbert@gondor.apana.org.au> Sun Sep 08 14:33:50 2013 +1000
tree 04a1f5c8dbe70783c35d1b378fcb73e8ddf609ea
parent 6be48f2940af9ea8d93c23a0dd8e322672c92efd

crypto: api - Fix race condition in larval lookup

crypto_larval_lookup should only return a larval if it created one.
Any larval created by another entity must be processed through
crypto_larval_wait before being returned.

Otherwise this will lead to a larval being killed twice, which
will most likely lead to a crash.

Cc: stable@vger.kernel.org
Reported-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>