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Date: Mon, 17 Jul 2017 16:54:43 +0200 From: Jiri Slaby <jslaby@...e.cz> To: Pablo Neira Ayuso <pablo@...filter.org>, fgao@...ai8.com Cc: kadlec@...ckhole.kfki.hu, Florian Westphal <fw@...len.de>, netfilter-devel@...r.kernel.org, coreteam@...filter.org, Linux kernel mailing list <linux-kernel@...r.kernel.org> Subject: Re: 4.12 nf_conntrack_expect crash On 07/17/2017, 04:49 PM, Jiri Slaby wrote: > Hi, > > on my system, I see a crash in del_timer invoked in nf_conntrack_expect. > See the attached picture. > > I somehow suspect this commit: > > commit ec0e3f01114ad327112432a4da8840eb22fed577 > Author: Gao Feng <fgao@...ai8.com> > Date: Mon Mar 27 10:31:26 2017 +0800 > > netfilter: nf_ct_expect: Add nf_ct_remove_expect() > > > I am going to play with it (debug, try to revert, etc.) if you have no > better idea... This? --- a/net/netfilter/nf_conntrack_expect.c +++ b/net/netfilter/nf_conntrack_expect.c @@ -422,7 +422,7 @@ static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect) h = nf_ct_expect_dst_hash(net, &expect->tuple); hlist_for_each_entry_safe(i, next, &nf_ct_expect_hash[h], hnode) { if (expect_matches(i, expect)) { - if (nf_ct_remove_expect(expect)) + if (nf_ct_remove_expect(i)) break; } else if (expect_clash(i, expect)) { ret = -EBUSY; > > thanks, > -- js suse labs
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