linux-kernel - Re: [syzbot] [ntfs3?] WARNING in wnd_add_free

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Date:   Thu, 10 Aug 2023 15:14:38 -0700
From:   syzbot <syzbot+5b2f934f08ab03d473ff@...kaller.appspotmail.com>
To:     almaz.alexandrovich@...agon-software.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        ntfs3@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ntfs3?] WARNING in wnd_add_free_ext (2)

syzbot has bisected this issue to:

commit 3880f2b816a7e4ca889b7e8a42e6c62c5706ed36
Author: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Date:   Mon Oct 25 15:31:28 2021 +0000

    fs/ntfs3: Fix fiemap + fix shrink file size (to remove preallocated space)

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=168fd89ba80000
start commit:   f6a691685962 Merge tag '6.5-rc4-smb3-client-fix' of git://..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=158fd89ba80000
console output: https://syzkaller.appspot.com/x/log.txt?x=118fd89ba80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1e3d5175079af5a4
dashboard link: https://syzkaller.appspot.com/bug?extid=5b2f934f08ab03d473ff
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13f56679a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=118b8eeda80000

Reported-by: syzbot+5b2f934f08ab03d473ff@...kaller.appspotmail.com
Fixes: 3880f2b816a7 ("fs/ntfs3: Fix fiemap + fix shrink file size (to remove preallocated space)")

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