syzbot has bisected this bug to:
commit c470abd4fde40ea6a0846a2beab642a578c0b8cd
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Sun Feb 19 22:34:00 2017 +0000
Linux 4.10
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13dbe2cf200000
start commit: c470abd4 Linux 4.10
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=d55557b516c45456
dashboard link: https://syzkaller.appspot.com/bug?extid=660883c56e2fa65d4497
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1756666f400000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1397354b400000
Reported-by: syzbot+660883c56e2fa65d4497@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: c470abd4 ("Linux 4.10")
