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);