On 9/16/21 8:59 AM, Dmitry Vyukov wrote: > On Mon, 13 Sept 2021 at 11:22, syzbot > <syzbot+d6218cb2fae0b2411e9d@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: >> >> syzbot suspects this issue was fixed by commit: >> >> commit 43016d02cf6e46edfc4696452251d34bba0c0435 >> Author: Florian Westphal <fw@xxxxxxxxx> >> Date: Mon May 3 11:51:15 2021 +0000 >> >> netfilter: arptables: use pernet ops struct during unregister >> >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10acd273300000 >> start commit: c98ff1d013d2 Merge tag 'scsi-fixes' of git://git.kernel.or.. >> git tree: upstream >> kernel config: https://syzkaller.appspot.com/x/.config?x=1c70e618af4c2e92 >> dashboard link: https://syzkaller.appspot.com/bug?extid=d6218cb2fae0b2411e9d >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145cb2b6d00000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=157b72b1d00000 >> >> If the result looks correct, please mark the issue as fixed by replying with: >> >> #syz fix: netfilter: arptables: use pernet ops struct during unregister >> >> For information about bisection process see: https://goo.gl/tpsmEJ#bisection > > I guess this is a wrong commit and it was fixed by something in io_uring. > Searching for refcount fixes I see > a298232ee6b9a1d5d732aa497ff8be0d45b5bd82 "io_uring: fix link timeout > refs". > Pavel, does it look right to you? I don't remember to be honest, if the dates fit, it can pretty well be it. Let's test one thing to be sure it hasn't been shut just by coincidence. #syz test: https://github.com/isilence/linux.git syz_test_quiesce_files -- Pavel Begunkov
