Eric Dumazet 8c5ca6492a net/sched: cls_u32: fix possible leak in u32_init_knode()
[ Upstream commit ec5b0f605b105457f257f2870acad4a5d463984b ]

While investigating a related syzbot report,
I found that whenever call to tcf_exts_init()
from u32_init_knode() is failing, we end up
with an elevated refcount on ht->refcnt

To avoid that, only increase the refcount after
all possible errors have been evaluated.

Fixes: b9a24bb76bf6 ("net_sched: properly handle failure case of tcf_exts_init()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-27 13:50:47 +02:00
..
2022-03-11 11:22:39 +01:00
2022-04-20 09:19:40 +02:00
2019-09-26 08:56:17 +02:00
2019-12-04 22:30:54 +01:00
2021-06-18 09:59:00 +02:00