diff options
Diffstat (limited to 'arch/s390/crypto/aes_s390.c')
| -rw-r--r-- | arch/s390/crypto/aes_s390.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index d00f84add5f4..6d2dbb5089d5 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -586,6 +586,9 @@ static int xts_aes_encrypt(struct blkcipher_desc *desc, struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm); struct blkcipher_walk walk; + if (!nbytes) + return -EINVAL; + if (unlikely(!xts_ctx->fc)) return xts_fallback_encrypt(desc, dst, src, nbytes); @@ -600,6 +603,9 @@ static int xts_aes_decrypt(struct blkcipher_desc *desc, struct s390_xts_ctx *xts_ctx = crypto_blkcipher_ctx(desc->tfm); struct blkcipher_walk walk; + if (!nbytes) + return -EINVAL; + if (unlikely(!xts_ctx->fc)) return xts_fallback_decrypt(desc, dst, src, nbytes); |