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

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Message-ID: <20240314090449.rsuwfxtszjbadypc@quack3>
Date: Thu, 14 Mar 2024 10:04:49 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+3625b78845a725e80f61@...kaller.appspotmail.com>
Cc: almaz.alexandrovich@...agon-software.com, anton@...era.com,
	axboe@...nel.dk, brauner@...nel.org, jack@...e.cz,
	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_lookup_inode_by_name

On Mon 26-02-24 17:09:02, syzbot wrote:
> 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=16ae7a30180000
> start commit:   cc3c44c9fda2 Merge tag 'drm-fixes-2023-05-12' of git://ano..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=38526bf24c8d961b
> dashboard link: https://syzkaller.appspot.com/bug?extid=3625b78845a725e80f61
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16eae776280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11d273ea280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

No reproducer anymore.

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

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR