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=11c31d55300000
start commit: 614cb2751d31 Merge tag 'trace-v5.14-rc6' of git://git.kern..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=13c31d55300000
console output: https://syzkaller.appspot.com/x/log.txt?x=15c31d55300000
kernel config: https://syzkaller.appspot.com/x/.config?x=96f0602203250753
dashboard link: https://syzkaller.appspot.com/bug?extid=91525b2bd4b5dff71619
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=122bce0e300000
Reported-by: syzbot+91525b2bd4b5dff71619@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: ea40d7857d52 ("drm/vkms: fbdev emulation support")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
