linux-kernel - Re: [syzbot] WARNING in __percpu_ref

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Message-ID: <000000000000526fb105cc1d3f5b@google.com>
Date:   Thu, 16 Sep 2021 07:01:12 -0700
From:   syzbot <syzbot+d6218cb2fae0b2411e9d@...kaller.appspotmail.com>
To:     asml.silence@...il.com, axboe@...nel.dk, coreteam@...filter.org,
        davem@...emloft.net, dsahern@...nel.org, dvyukov@...gle.com,
        fw@...len.de, hdanton@...a.com, io-uring@...r.kernel.org,
        kadlec@...filter.org, kuba@...nel.org,
        linux-kernel@...r.kernel.org, ming.lei@...hat.com,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        pablo@...filter.org, syzkaller-bugs@...glegroups.com,
        yoshfuji@...ux-ipv6.org
Subject: Re: [syzbot] WARNING in __percpu_ref_exit (2)

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+d6218cb2fae0b2411e9d@...kaller.appspotmail.com

Tested on:

commit:         5318e5b9 io_uring: quiesce files reg
git tree:       https://github.com/isilence/linux.git syz_test_quiesce_files
kernel config:  https://syzkaller.appspot.com/x/.config?x=f7d9f99709463d21
dashboard link: https://syzkaller.appspot.com/bug?extid=d6218cb2fae0b2411e9d
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: testing is done by a robot and is best-effort only.