syzbot has bisected this issue to:
commit 8b93d1d7dbd578fd296e70008b29c0f62d09d7cb
Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
Date: Thu Aug 12 13:14:10 2021 +0000
drm/shmem-helper: Switch to vmf_insert_pfn
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1277054f300000
start commit: 9004fd387338 Add linux-next specific files for 20210917
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=1177054f300000
console output: https://syzkaller.appspot.com/x/log.txt?x=1677054f300000
kernel config: https://syzkaller.appspot.com/x/.config?x=45d5ac72f31f29f3
dashboard link: https://syzkaller.appspot.com/bug?extid=2d4f8693f438d2bd4bdb
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13ad5527300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13beef77300000
Reported-by: syzbot+2d4f8693f438d2bd4bdb@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 8b93d1d7dbd5 ("drm/shmem-helper: Switch to vmf_insert_pfn")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
