syzbot has bisected this issue to:
commit ea40d7857d5250e5400f38c69ef9e17321e9c4a2
Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date: Fri Oct 9 23:21:56 2020 +0000
drm/vkms: fbdev emulation support
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1282dbffe80000
start commit: 6764c317b6bb Merge tag 'scsi-fixes' of git://git.kernel.or..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1182dbffe80000
console output: https://syzkaller.appspot.com/x/log.txt?x=1682dbffe80000
kernel config: https://syzkaller.appspot.com/x/.config?x=2c0ac5dfae6ecc58
dashboard link: https://syzkaller.appspot.com/bug?extid=93bd128a383695391534
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12067e60180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=102774b7e80000
Reported-by: syzbot+93bd128a383695391534@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: ea40d7857d52 ("drm/vkms: fbdev emulation support")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
