From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 15 Jan 2016 14:02:20 +0000 (+0800)
Subject: crypto: algif_skcipher - Fix race condition in skcipher_check_key
X-Git-Tag: v3.2.77~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9bc37ed5b25642391d5c39e9723c8cda1f5ccf39;p=pandora-kernel.git

crypto: algif_skcipher - Fix race condition in skcipher_check_key

commit 1822793a523e5d5730b19cc21160ff1717421bc8 upstream.

We need to lock the child socket in skcipher_check_key as otherwise
two simultaneous calls can cause the parent socket to be freed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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