Messages in this thread Patch in this message |  | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 17/25] cls_matchall: fix tcf_unbind_filter missing | Date | Tue, 21 Aug 2018 08:21:31 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Hangbin Liu <liuhangbin@gmail.com>
[ Upstream commit a51c76b4dfb30496dc65396a957ef0f06af7fb22 ]
Fix tcf_unbind_filter missing in cls_matchall as this will trigger WARN_ON() in cbq_destroy_class().
Fixes: fd62d9f5c575f ("net/sched: matchall: Fix configuration race") Reported-by: Li Shuang <shuali@redhat.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/sched/cls_matchall.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/net/sched/cls_matchall.c +++ b/net/sched/cls_matchall.c @@ -94,6 +94,8 @@ static bool mall_destroy(struct tcf_prot if (!head) return true; + tcf_unbind_filter(tp, &head->res); + if (tc_should_offload(dev, tp, head->flags)) mall_destroy_hw_filter(tp, head, (unsigned long) head);
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