--- crypto/authenc.c

+++ crypto/authenc.c

@@ -336,7 +336,7 @@ static int crypto_authenc_genicv(struct

cryptlen += ivsize;

}

- if (sg_is_last(assoc)) {

+ if (req->assoclen && sg_is_last(assoc)) {

authenc_ahash_fn = crypto_authenc_ahash;

sg_init_table(asg, 2);

sg_set_page(asg, sg_page(assoc), assoc->length, assoc->offset);

@@ -490,7 +490,7 @@ static int crypto_authenc_iverify(struct

cryptlen += ivsize;

}

- if (sg_is_last(assoc)) {

+ if (req->assoclen && sg_is_last(assoc)) {

authenc_ahash_fn = crypto_authenc_ahash;

sg_init_table(asg, 2);

sg_set_page(asg, sg_page(assoc), assoc->length, assoc->offset);