syzbot has bisected this bug to:
commit 0fff724a33917ac581b5825375d0b57affedee76
Author: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
Date: Fri Jan 18 14:51:13 2019 +0000
drm/sun4i: backend: Use explicit fourcc helpers for packed YUV422 check
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1467550f200000
start commit: 0e40da3e Merge tag 'kbuild-fixes-v5.1' of git://git.kernel..
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=1667550f200000
console output: https://syzkaller.appspot.com/x/log.txt?x=1267550f200000
kernel config: https://syzkaller.appspot.com/x/.config?x=8dcdce25ea72bedf
dashboard link: https://syzkaller.appspot.com/bug?extid=2ff1e7cb738fd3c41113
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16973653200000
Reported-by: syzbot+2ff1e7cb738fd3c41113@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 0fff724a3391 ("drm/sun4i: backend: Use explicit fourcc helpers for
packed YUV422 check")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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