diff options
| -rw-r--r-- | drivers/crypto/talitos.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 1186d8a12c4f..014745271bb4 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1641,6 +1641,14 @@ static int ablkcipher_encrypt(struct ablkcipher_request *areq) struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); struct talitos_edesc *edesc; + unsigned int blocksize = + crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(cipher)); + + if (!areq->nbytes) + return 0; + + if (areq->nbytes % blocksize) + return -EINVAL; /* allocate extended descriptor */ edesc = ablkcipher_edesc_alloc(areq, true); @@ -1658,6 +1666,14 @@ static int ablkcipher_decrypt(struct ablkcipher_request *areq) struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq); struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher); struct talitos_edesc *edesc; + unsigned int blocksize = + crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(cipher)); + + if (!areq->nbytes) + return 0; + + if (areq->nbytes % blocksize) + return -EINVAL; /* allocate extended descriptor */ edesc = ablkcipher_edesc_alloc(areq, false); |