diff options
| author | Horia Geant? <horia.geanta@freescale.com> | 2015-05-11 20:04:49 +0300 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-07-03 23:02:16 -0400 |
| commit | bc8298a3efa4cec6e109206ecb5fdeff08b58c1d (patch) | |
| tree | 806e4bd7f3741523d38345cdd5caee44f5c55a7a /drivers/crypto/talitos.c | |
| parent | a6642fe7e80e12fa71136e28d6fcf757ce859bc8 (diff) | |
Revert "crypto: talitos - convert to use be16_add_cpu()"
[ Upstream commit 69d9cd8c592f1abce820dbce7181bbbf6812cfbd ]
This reverts commit 7291a932c6e27d9768e374e9d648086636daf61c.
The conversion to be16_add_cpu() is incorrect in case cryptlen is
negative due to premature (i.e. before addition / subtraction)
implicit conversion of cryptlen (int -> u16) leading to sign loss.
Cc: <stable@vger.kernel.org> # 3.10+
Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers/crypto/talitos.c')
| -rw-r--r-- | drivers/crypto/talitos.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index eb12caa8e94a..307931528eb2 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -927,7 +927,8 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count, sg_count--; link_tbl_ptr--; } - be16_add_cpu(&link_tbl_ptr->len, cryptlen); + link_tbl_ptr->len = cpu_to_be16(be16_to_cpu(link_tbl_ptr->len) + + cryptlen); /* tag end of link table */ link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN; |