Commit 21641c2e authored Sep 18, 2016 by WANG Cong Committed by David S. Miller Sep 23, 2016

net_sched: check NULL on error path in route4_change()



On error path in route4_change(), 'f' could be NULL,
so we should check NULL before calling tcf_exts_destroy().

Fixes: b9a24bb7 ("net_sched: properly handle failure case of tcf_exts_init()")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d6989d4b

net/sched/cls_route.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -559,6 +559,7 @@ static int route4_change(struct net net, struct sk_buff in_skb,
		return 0;

		errout:
		if (f)
		tcf_exts_destroy(&f->exts);
		kfree(f);
		return err;