diff options
| -rw-r--r-- | crypto/authenc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/crypto/authenc.c b/crypto/authenc.c index 05eb32e0d949..b9884ee0adb6 100644 --- a/crypto/authenc.c +++ b/crypto/authenc.c @@ -181,6 +181,7 @@ static void authenc_verify_ahash_update_done(struct crypto_async_request *areq, struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc); struct authenc_request_ctx *areq_ctx = aead_request_ctx(req); struct ahash_request *ahreq = (void *)(areq_ctx->tail + ctx->reqoff); + unsigned int cryptlen = req->cryptlen; if (err) goto out; @@ -196,6 +197,7 @@ static void authenc_verify_ahash_update_done(struct crypto_async_request *areq, goto out; authsize = crypto_aead_authsize(authenc); + cryptlen -= authsize; ihash = ahreq->result + authsize; scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen, authsize, 0); @@ -209,7 +211,7 @@ static void authenc_verify_ahash_update_done(struct crypto_async_request *areq, ablkcipher_request_set_callback(abreq, aead_request_flags(req), req->base.complete, req->base.data); ablkcipher_request_set_crypt(abreq, req->src, req->dst, - req->cryptlen, req->iv); + cryptlen, req->iv); err = crypto_ablkcipher_decrypt(abreq); @@ -228,11 +230,13 @@ static void authenc_verify_ahash_done(struct crypto_async_request *areq, struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc); struct authenc_request_ctx *areq_ctx = aead_request_ctx(req); struct ahash_request *ahreq = (void *)(areq_ctx->tail + ctx->reqoff); + unsigned int cryptlen = req->cryptlen; if (err) goto out; authsize = crypto_aead_authsize(authenc); + cryptlen -= authsize; ihash = ahreq->result + authsize; scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen, authsize, 0); @@ -246,7 +250,7 @@ static void authenc_verify_ahash_done(struct crypto_async_request *areq, ablkcipher_request_set_callback(abreq, aead_request_flags(req), req->base.complete, req->base.data); ablkcipher_request_set_crypt(abreq, req->src, req->dst, - req->cryptlen, req->iv); + cryptlen, req->iv); err = crypto_ablkcipher_decrypt(abreq); |