Re: [syzbot] [fs?] KASAN: null-ptr-deref Write in do_pagemap_cmd

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+02e64be5307d72e9c309@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         90d35da6 Linux 6.8-rc7
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=1279a07a180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f7212ea23efeb053
dashboard link: https://syzkaller.appspot.com/bug?extid=02e64be5307d72e9c309
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1111146c180000

Note: testing is done by a robot and is best-effort only.