Messages in this thread Patch in this message | | | From | Andrei Botila <> | Subject | [PATCH 21/22] crypto: qce - add check for xts input length equal to zero | Date | Fri, 7 Aug 2020 19:20:09 +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.
Signed-off-by: Andrei Botila <andrei.botila@nxp.com> --- drivers/crypto/qce/skcipher.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c index 5630c5addd28..887fd4dc9b43 100644 --- a/drivers/crypto/qce/skcipher.c +++ b/drivers/crypto/qce/skcipher.c @@ -223,6 +223,9 @@ static int qce_skcipher_crypt(struct skcipher_request *req, int encrypt) int keylen; int ret; + if (!req->cryptlen && IS_XTS(rctx->flags)) + return 0; + rctx->flags = tmpl->alg_flags; rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT; keylen = IS_XTS(rctx->flags) ? ctx->enc_keylen >> 1 : ctx->enc_keylen; -- 2.17.1
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