1 files changed, 8 insertions, 1 deletions

diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index a8221d1da0ff..67cd06613a25 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -477,8 +477,15 @@ static int ah6_init_state(struct xfrm_state *x)
 
         x->props.header_len = XFRM_ALIGN8(sizeof(struct ip_auth_hdr) +
                                           ahp->icv_trunc_len);
-        if (x->props.mode == XFRM_MODE_TUNNEL)
+        switch (x->props.mode) {
+        case XFRM_MODE_BEET:
+        case XFRM_MODE_TRANSPORT:
+                break;
+        case XFRM_MODE_TUNNEL:
                 x->props.header_len += sizeof(struct ipv6hdr);
+        default:
+                goto error;
+        }
         x->data = ahp;
 
         return 0;