syzbot has bisected this issue to:
commit b1c32fcfadf5593ab7a63261cc8a5747c36e627e
Author: Jiri Slaby <jslaby@xxxxxxx>
Date: Tue Aug 18 08:57:05 2020 +0000
vc_screen: extract vcs_read_buf_header
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13259dee900000
start commit: 494d311a Add linux-next specific files for 20200821
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=10a59dee900000
console output: https://syzkaller.appspot.com/x/log.txt?x=17259dee900000
kernel config: https://syzkaller.appspot.com/x/.config?x=a61d44f28687f508
dashboard link: https://syzkaller.appspot.com/bug?extid=ad1f53726c3bd11180cb
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16704b7e900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1588a046900000
Reported-by: syzbot+ad1f53726c3bd11180cb@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: b1c32fcfadf5 ("vc_screen: extract vcs_read_buf_header")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
