1 files changed, 2 insertions, 7 deletions

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 53f46ab6af7..69a2030407b 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -429,10 +429,6 @@ static int ah6_init_state(struct xfrm_state *x)
         if (!x->aalg)
                 goto error;
 
-        /* null auth can use a zero length key */
-        if (x->aalg->alg_key_len > 512)
-                goto error;
-
         if (x->encap)
                 goto error;
 
@@ -440,14 +436,13 @@ static int ah6_init_state(struct xfrm_state *x)
         if (ahp == NULL)
                 return -ENOMEM;
 
-        ahp->key = x->aalg->alg_key;
-        ahp->key_len = (x->aalg->alg_key_len+7)/8;
         tfm = crypto_alloc_hash(x->aalg->alg_name, 0, CRYPTO_ALG_ASYNC);
         if (IS_ERR(tfm))
                 goto error;
 
         ahp->tfm = tfm;
-        if (crypto_hash_setkey(tfm, ahp->key, ahp->key_len))
+        if (crypto_hash_setkey(tfm, x->aalg->alg_key,
+                               (x->aalg->alg_key_len + 7) / 8))
                 goto error;
 
         /*