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| author | Mikulas Patocka <mpatocka@redhat.com> | 2014-07-25 19:40:20 -0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-07-28 22:01:02 +0800 |
| commit | f960d2093f29f0bc4e1df1fcefb993455620c0b5 (patch) | |
| tree | 3f30e4258e76c6fe1a0feabdb54372e9602b9a1b /crypto/af_alg.c | |
| parent | e052dbf554610e2104c5a7518c4d8374bed701bb (diff) | |
| download | linux-f960d2093f29f0bc4e1df1fcefb993455620c0b5.tar.gz linux-f960d2093f29f0bc4e1df1fcefb993455620c0b5.tar.bz2 linux-f960d2093f29f0bc4e1df1fcefb993455620c0b5.zip | |
crypto: arm64-aes - fix encryption of unaligned data
cryptsetup fails on arm64 when using kernel encryption via AF_ALG socket.
See https://bugzilla.redhat.com/show_bug.cgi?id=1122937
The bug is caused by incorrect handling of unaligned data in
arch/arm64/crypto/aes-glue.c. Cryptsetup creates a buffer that is aligned
on 8 bytes, but not on 16 bytes. It opens AF_ALG socket and uses the
socket to encrypt data in the buffer. The arm64 crypto accelerator causes
data corruption or crashes in the scatterwalk_pagedone.
This patch fixes the bug by passing the residue bytes that were not
processed as the last parameter to blkcipher_walk_done.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/af_alg.c')
0 files changed, 0 insertions, 0 deletions