linux-kernel - Re: [syzbot] [ntfs3?] KASAN: use-after-free Read in ntfs_read

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Date: Tue, 27 Feb 2024 03:50:04 -0800
From: syzbot <syzbot+d3cd38158cd7c8d1432c@...kaller.appspotmail.com>
To: almaz.alexandrovich@...agon-software.com, anton@...era.com, 
	axboe@...nel.dk, brauner@...nel.org, jack@...e.cz, linkinjeon@...nel.org, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-ntfs-dev@...ts.sourceforge.net, ntfs3@...ts.linux.dev, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ntfs3?] KASAN: use-after-free Read in ntfs_read_folio

syzbot suspects this issue was fixed by commit:

commit 6f861765464f43a71462d52026fbddfc858239a5
Author: Jan Kara <jack@...e.cz>
Date:   Wed Nov 1 17:43:10 2023 +0000

    fs: Block writes to mounted block devices

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15a70f4a180000
start commit:   ac865f00af29 Merge tag 'pci-v6.7-fixes-2' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=655f8abe9fe69b3b
dashboard link: https://syzkaller.appspot.com/bug?extid=d3cd38158cd7c8d1432c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12769ba5e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10c2b97ee80000

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

#syz fix: fs: Block writes to mounted block devices

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