[PATCH 03/22] crypto: arm64/aes - add check for xts input length equal to zero
From: Andrei Botila <andrei.botila@oss.nxp.com>
Date: 2020-08-07 16:21:56
Also in:
linux-crypto, linux-s390, linuxppc-dev, lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
From: Andrei Botila <redacted> 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 <redacted> --- 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
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel