syzbot suspects this bug was fixed by commit:
commit 76518d3798855242817e8a8ed76b2d72f4415624
Author: Bernd Edlinger <bernd.edlinger@xxxxxxxxxx>
Date: Fri Mar 20 20:27:41 2020 +0000
proc: io_accounting: Use new infrastructure to fix deadlocks in execve
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=124347cfe00000
start commit: 46cf053e Linux 5.5-rc3
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=ed9d672709340e35
dashboard link: https://syzkaller.appspot.com/bug?extid=87a1b40b8fcdc9d40bd0
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15693866e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12847615e00000
If the result looks correct, please mark the bug fixed by replying with:
#syz fix: proc: io_accounting: Use new infrastructure to fix deadlocks in execve
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
