linux-kernel - Re: [syzbot] [ntfs3?] BUG: unable to handle kernel paging request in attr_data_read

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Date:   Wed, 19 Jul 2023 04:39:30 -0700
From:   syzbot <syzbot+33a67f9990381cc8951c@...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?] BUG: unable to handle kernel paging request in attr_data_read_resident

syzbot has bisected this issue to:

commit ad26a9c84510af7252e582e811de970433a9758f
Author: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Date:   Fri Oct 7 17:08:06 2022 +0000

    fs/ntfs3: Fixing wrong logic in attr_set_size and ntfs_fallocate

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=143dfc66a80000
start commit:   74f1456c4a5f Merge tag 'linux-kselftest-fixes-6.5-rc3' of ..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=163dfc66a80000
console output: https://syzkaller.appspot.com/x/log.txt?x=123dfc66a80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=77b9a3cf8f44c6da
dashboard link: https://syzkaller.appspot.com/bug?extid=33a67f9990381cc8951c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15619a3aa80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12288c1aa80000

Reported-by: syzbot+33a67f9990381cc8951c@...kaller.appspotmail.com
Fixes: ad26a9c84510 ("fs/ntfs3: Fixing wrong logic in attr_set_size and ntfs_fallocate")

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