Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 04/22] crypto: arm64/aes-neonbs - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:19:52 +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: 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-neonbs-glue.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm64/crypto/aes-neonbs-glue.c b/arch/arm64/crypto/aes-neonbs-glue.c index fb507d569922..197bf24e7dae 100644 --- a/arch/arm64/crypto/aes-neonbs-glue.c +++ b/arch/arm64/crypto/aes-neonbs-glue.c @@ -330,6 +330,9 @@ static int __xts_crypt(struct skcipher_request *req, bool encrypt, int first = 1; u8 *out, *in; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; -- 2.17.1
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