diff options
| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2017-10-16 18:51:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-15 10:04:13 +0100 |
| commit | cb870a365af45b69b4bcb3323066a681e37ed4aa (patch) | |
| tree | 912de31e7057d125d26b9ce6e3561499c40d5ac4 /lib | |
| parent | c64cc4117fecbcd048f84aaa0af47a2542dc04a5 (diff) | |
| download | linux-stable-cb870a365af45b69b4bcb3323066a681e37ed4aa.tar.gz linux-stable-cb870a365af45b69b4bcb3323066a681e37ed4aa.tar.bz2 linux-stable-cb870a365af45b69b4bcb3323066a681e37ed4aa.zip | |
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