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(parent: 579d705) | patch
crypto: api - Check spawn->alg under lock in crypto_drop_spawn
authorHerbert Xu <herbert@gondor.apana.org.au>
Fri, 6 Dec 2019 05:55:17 +0000 (13:55 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 11 Dec 2019 08:48:38 +0000 (16:48 +0800)
commit7db3b61b6bba4310f454588c2ca6faf2958ad79f
tree531463d296fa92e7a02896dd19aeadb4dc23bcd0tree | snapshot
parent579d705cd64e44f3fcda1a6cfd5f37468a5ddf63commit | diff
crypto: api - Check spawn->alg under lock in crypto_drop_spawn

We need to check whether spawn->alg is NULL under lock as otherwise
the algorithm could be removed from under us after we have checked
it and found it to be non-NULL.  This could cause us to remove the
spawn from a non-existent list.

Fixes: 7ede5a5ba55a ("crypto: api - Fix crypto_drop_spawn crash...")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/algapi.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git