commit d041b557792c85677f17e08eee535eafbd6b9aa2
author Andrey Ryabinin <aryabinin@virtuozzo.com> Mon Oct 16 18:51:31 2017 +0300
committer Herbert Xu <herbert@gondor.apana.org.au> Fri Nov 03 21:35:35 2017 +0800
tree 742eabbecc54216d4acb6f7ed0e06cb6cea622d9
parent 5dfeaac15f2b1abb5a53c9146041c7235eb9aa04

crypto: x86/sha1-mb - fix panic due to unaligned access

struct sha1_ctx_mgr allocated in sha1_mb_mod_init() via kzalloc()
and later passed in sha1_mb_flusher_mgr_flush_avx2() function where
instructions vmovdqa used to access the struct. vmovdqa requires
16-bytes aligned argument, but nothing guarantees that struct
sha1_ctx_mgr will have that alignment. Unaligned vmovdqa will
generate GP fault.

Fix this by replacing vmovdqa with vmovdqu which doesn't have alignment
requirements.

Fixes: 2249cbb53ead ("crypto: sha-mb - SHA1 multibuffer submit and flush routines for AVX2")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>