linux-kernel - Re: [syzbot] [reiserfs?] KASAN: use-after-free Read in reiserfs_release

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Date: Mon, 12 Feb 2024 03:07:03 -0800
From: syzbot <syzbot+909a2191a4352fd77d25@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, jack@...e.cz, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	reiserfs-devel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [reiserfs?] KASAN: use-after-free Read in reiserfs_release_objectid

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=14df7cec180000
start commit:   ca57f02295f1 afs: Fix fileserver probe RTT handling
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
dashboard link: https://syzkaller.appspot.com/bug?extid=909a2191a4352fd77d25
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1563673d880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=134d9425880000

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