Re: [syzbot] unexpected kernel reboot (5)

[syzbot]

syzbot has bisected this issue to:

commit f2d6c2708bd84ca953fa6b6ca5717e79eb0140c7
Author: Christoph Hellwig <hch@xxxxxx>
Date:   Wed Jan 20 20:46:31 2021 +0000

    kernfs: wire up ->splice_read and ->splice_write

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=144ee113d00000
start commit:   7ac3a1c1 Merge tag 'mtd/fixes-for-5.13-rc4' of git://git.k..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=164ee113d00000
console output: https://syzkaller.appspot.com/x/log.txt?x=124ee113d00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=266cda122a0b56c
dashboard link: https://syzkaller.appspot.com/bug?extid=6fb8ff5211d3e821398f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=154e8703d00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=171382d3d00000

Reported-by: syzbot+6fb8ff5211d3e821398f@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: f2d6c2708bd8 ("kernfs: wire up ->splice_read and ->splice_write")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection