Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 02/22] crypto: arm/aes-neonbs - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:19:50 +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: Russell King <linux@armlinux.org.uk> Signed-off-by: Andrei Botila <andrei.botila@nxp.com> --- arch/arm/crypto/aes-neonbs-glue.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/crypto/aes-neonbs-glue.c b/arch/arm/crypto/aes-neonbs-glue.c index e6fd32919c81..98ca6e6cca90 100644 --- a/arch/arm/crypto/aes-neonbs-glue.c +++ b/arch/arm/crypto/aes-neonbs-glue.c @@ -339,6 +339,9 @@ static int __xts_crypt(struct skcipher_request *req, bool encrypt, struct skcipher_walk walk; int err; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; -- 2.17.1
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