diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 7e3817011199..7922b10f360e 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -339,16 +339,18 @@ static struct inet_frag_queue *inet_frag_create(struct fqdir *fqdir,
 		*prev = ERR_PTR(-ENOMEM);
 		return NULL;
 	}
-	mod_timer(&q->timer, jiffies + fqdir->timeout);
 
+	spin_lock_bh(&q->lock);
 	*prev = rhashtable_lookup_get_insert_key(&fqdir->rhashtable, &q->key,
 						 &q->node, f->rhash_params);
 	if (*prev) {
 		q->flags |= INET_FRAG_COMPLETE;
-		inet_frag_kill(q);
+		spin_unlock_bh(&q->lock);
 		inet_frag_destroy(q);
 		return NULL;
 	}
+	mod_timer(&q->timer, jiffies + fqdir->timeout);
+	spin_unlock_bh(&q->lock);
 	return q;
 }