Re: [syzbot] kernel BUG in dnotify_free_mark

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+06cc05ddc896f12b7ec5@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         247f34f7 Linux 6.1-rc2
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=1228bb86880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1d3548a4365ba17d
dashboard link: https://syzkaller.appspot.com/bug?extid=06cc05ddc896f12b7ec5
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=137b6716880000

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