linux-kernel - Re: INFO: rcu detected stall in security_file

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Date:   Thu, 29 Oct 2020 16:49:05 -0700
From:   syzbot <syzbot+d2b6e8cc299748fecf25@...kaller.appspotmail.com>
To:     a@...table.cc, b.a.t.m.a.n@...ts.open-mesh.org,
        davem@...emloft.net, dhowells@...hat.com, fweisbec@...il.com,
        ktkhai@...tuozzo.com, linux-afs@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        mareklindner@...mailbox.ch, miklos@...redi.hu, mingo@...nel.org,
        mszeredi@...hat.com, netdev@...r.kernel.org, sw@...onwunderlich.de,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de
Subject: Re: INFO: rcu detected stall in security_file_open (3)

syzbot suspects this issue was fixed by commit:

commit 1d0e850a49a5b56f8f3cb51e74a11e2fedb96be6
Author: David Howells <dhowells@...hat.com>
Date:   Fri Oct 16 12:21:14 2020 +0000

    afs: Fix cell removal

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14bc220a500000
start commit:   fb0155a0 Merge tag 'nfs-for-5.9-3' of git://git.linux-nfs...
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=41b736b7ce1b3ea4
dashboard link: https://syzkaller.appspot.com/bug?extid=d2b6e8cc299748fecf25
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1249c717900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1048d9e3900000

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

#syz fix: afs: Fix cell removal

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