Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 03/22] crypto: arm64/aes - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:19:51 +0300 |
| |
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: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrei Botila <andrei.botila@nxp.com> --- arch/arm64/crypto/aes-glue.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c index 395bbf64b2ab..44c9644c74b1 100644 --- a/arch/arm64/crypto/aes-glue.c +++ b/arch/arm64/crypto/aes-glue.c @@ -515,6 +515,9 @@ static int __maybe_unused xts_encrypt(struct skcipher_request *req) struct scatterlist *src, *dst; struct skcipher_walk walk; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; @@ -587,6 +590,9 @@ static int __maybe_unused xts_decrypt(struct skcipher_request *req) struct scatterlist *src, *dst; struct skcipher_walk walk; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; -- 2.17.1
| |