From: Andrei Botila <andrei.botila@xxxxxxx> 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@xxxxxxx> Cc: Will Deacon <will@xxxxxxxxxx> Signed-off-by: Andrei Botila <andrei.botila@xxxxxxx> --- 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
