Re: possible deadlock in proc_pid_personality

[syzbot]

syzbot suspects this bug was fixed by commit:

commit 2db9dbf71bf98d02a0bf33e798e5bfd2a9944696
Author: Bernd Edlinger <bernd.edlinger@xxxxxxxxxx>
Date:   Fri Mar 20 20:27:24 2020 +0000

    proc: Use new infrastructure to fix deadlocks in execve

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=136aea00100000
start commit:   63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=5d2e033af114153f
dashboard link: https://syzkaller.appspot.com/bug?extid=d9ae59d4662c941e39c6
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1374670de00000

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

#syz fix: proc: Use new infrastructure to fix deadlocks in execve

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