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| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2017-10-16 18:51:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-15 17:13:12 +0100 |
| commit | 48276703a0371b3af436e3e378a1b9c1bba92528 (patch) | |
| tree | f43baee8c7e6bf9fa53763459b1f67e1ae81d5e6 /lib | |
| parent | 44540ead8a8a159a4d2a9cb2e3e0b7388cfaa3b1 (diff) | |
crypto: x86/sha1-mb - fix panic due to unaligned access
commit d041b557792c85677f17e08eee535eafbd6b9aa2 upstream.
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>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions