syzbot <syzbot+793a590957d9c1b96620@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: d887ae3247e0 octeontx2-pf: Remove unnecessary synchronize_.. > git tree: net-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=17f2b659f00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=b1aab282dc5dd920 > dashboard link: https://syzkaller.appspot.com/bug?extid=793a590957d9c1b96620 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1313dce6f00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=169eb59ef00000 > > The issue was bisected to: > > commit 1397af5bfd7d32b0cf2adb70a78c9a9e8f11d912 > Author: Florian Westphal <fw@xxxxxxxxx> > Date: Mon Apr 11 11:01:18 2022 +0000 > > netfilter: conntrack: remove the percpu dying list AFAICS this bug exists since Fixes: 71d8c47fc653 ("netfilter: conntrack: introduce clash resolution on insertion race") nf_confirm needs to re-fetch 'ct' from skb->_nfct. Will send a patch.
