linux-kernel - Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer dereference in attr_make

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Message-ID: <0000000000006ab89d0620ac92fc@google.com>
Date: Tue, 27 Aug 2024 09:17:03 -0700
From: syzbot <syzbot+5b6ed16da1077f45bc8e@...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 NULL pointer
 dereference in attr_make_nonresident

syzbot suspects this issue was fixed by commit:

commit 0f9579d9e0331b6255132ac06bdf2c0a01cceb90
Author: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Date:   Mon Jun 3 06:58:13 2024 +0000

    fs/ntfs3: Add missing .dirty_folio in address_space_operations

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=116e278d980000
start commit:   34afb82a3c67 Merge tag '6.10-rc6-smb3-server-fixes' of git..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=42a432cfd0e579e0
dashboard link: https://syzkaller.appspot.com/bug?extid=5b6ed16da1077f45bc8e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=110a2c7e980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1312ea4e980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: fs/ntfs3: Add missing .dirty_folio in address_space_operations

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