Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 06/22] crypto: s390/aes - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:19:54 +0300 |
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From: Andrei Botila <andrei.botila@nxp.com>
Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero.
Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Andrei Botila <andrei.botila@nxp.com> --- arch/s390/crypto/aes_s390.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 73044634d342..bc8855f4b7d1 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -437,6 +437,9 @@ static int xts_aes_crypt(struct skcipher_request *req, unsigned long modifier) u8 init[16]; } xts_param; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; -- 2.17.1
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