Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 15/22] crypto: ccp - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:20:03 +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: Tom Lendacky <thomas.lendacky@amd.com> Cc: John Allen <john.allen@amd.com> Signed-off-by: Andrei Botila <andrei.botila@nxp.com> --- drivers/crypto/ccp/ccp-crypto-aes-xts.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c index 6849261ca47d..6a93b54d388a 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-xts.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c @@ -113,6 +113,9 @@ static int ccp_aes_xts_crypt(struct skcipher_request *req, u32 unit_size; int ret; + if (!req->cryptlen) + return 0; + if (!ctx->u.aes.key_len) return -EINVAL; -- 2.17.1
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