netfilter: CLUSTERIP: clusterip_seq_stop() fix

If clusterip_seq_start() memory allocation fails, we crash later in clusterip_seq_start(), trying to kfree(ERR_PTR(-ENOMEM)) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
git-mirror · Apr 1, 2010 · 902a3dd · 902a3dd
1 parent d26e6a0
commit 902a3dd
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -599,7 +599,8 @@ static void *clusterip_seq_next(struct seq_file *s, void *v, loff_t *pos)
 
 static void clusterip_seq_stop(struct seq_file *s, void *v)
 {
-	kfree(v);
+	if (!IS_ERR(v))
+		kfree(v);
 }
 
 static int clusterip_seq_show(struct seq_file *s, void *v)