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authorAndrey Ryabinin <aryabinin@virtuozzo.com>2017-10-16 18:51:30 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-11-03 21:35:34 +0800
commit5dfeaac15f2b1abb5a53c9146041c7235eb9aa04 (patch)
tree340bac4bef4a1f3f132107acdac7fc61553b2bee /crypto
parent4635742d1cef5ee5f217f89310a8782ebb4e25dd (diff)
crypto: x86/sha256-mb - fix panic due to unaligned access
struct sha256_ctx_mgr allocated in sha256_mb_mod_init() via kzalloc() and later passed in sha256_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 sha256_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: a377c6b1876e ("crypto: sha256-mb - submit/flush routines for AVX2") Reported-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: <stable@vger.kernel.org> Acked-by: Tim Chen Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
0 files changed, 0 insertions, 0 deletions