[PATCH AUTOSEL 5.4 50/74] net: sched: fix error return code in tcf_del_walker()
From: Sasha Levin <sashal@kernel.org>
Date: 2021-07-06 11:48:07
Also in:
lkml, netdev
Subsystem:
networking [general], tc subsystem, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jamal Hadi Salim, Jiri Pirko, Linus Torvalds
From: Yang Yingliang <redacted> [ Upstream commit 55d96f72e8ddc0a294e0b9c94016edbb699537e1 ] When nla_put_u32() fails, 'ret' could be 0, it should return error code in tcf_del_walker(). Reported-by: Hulk Robot <redacted> Signed-off-by: Yang Yingliang <redacted> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/sched/act_api.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 716cad677318..17e5cd9ebd89 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c@@ -316,7 +316,8 @@ static int tcf_del_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb, } mutex_unlock(&idrinfo->lock); - if (nla_put_u32(skb, TCA_FCNT, n_i)) + ret = nla_put_u32(skb, TCA_FCNT, n_i); + if (ret) goto nla_put_failure; nla_nest_end(skb, nest);
--
2.30.2