From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 25 Dec 2015 07:40:05 +0000 (+0800)
Subject: crypto: algif_skcipher - Require setkey before accept(2)
X-Git-Tag: v3.2.77~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e249f66acd1096c07a64cf59b6add21b0edbc7f3;p=pandora-kernel.git

crypto: algif_skcipher - Require setkey before accept(2)

commit dd504589577d8e8e70f51f997ad487a4cb6c026f upstream.

Some cipher implementations will crash if you try to use them
without calling setkey first.  This patch adds a check so that
the accept(2) call will fail with -ENOKEY if setkey hasn't been
done on the socket yet.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
[bwh: Backported to 3.2: s/crypto_(alloc_|free_)?skcipher/crypto_\1ablkcipher/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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