linux-kernel - Re: [syzbot] INFO: rcu detected stall in newfstat (2)

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Message-ID: <000000000000503ebc05d4948304@google.com>
Date:   Sat, 01 Jan 2022 23:40:06 -0800
From:   syzbot <syzbot+40ef7b5e4067ef581a8c@...kaller.appspotmail.com>
To:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        mchehab+huawei@...nel.org, rafael@...nel.org,
        rajatasthana4@...il.com, sean@...s.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] INFO: rcu detected stall in newfstat (2)

syzbot suspects this issue was fixed by commit:

commit 476db72e521983ecb847e4013b263072bb1110fc
Author: Rajat Asthana <rajatasthana4@...il.com>
Date:   Wed Aug 18 20:31:10 2021 +0000

    media: mceusb: return without resubmitting URB in case of -EPROTO error.

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=155db371b00000
start commit:   519d81956ee2 Linux 5.15-rc6
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=1f7f46d98a0da80e
dashboard link: https://syzkaller.appspot.com/bug?extid=40ef7b5e4067ef581a8c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=165544e8b00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=159822fcb00000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: media: mceusb: return without resubmitting URB in case of -EPROTO error.

For information about bisection process see: https://goo.gl/tpsmEJ#bisection