linux-kernel - Re: [syzbot] [reiserfs?] possible deadlock in mnt_want_write

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Message-ID: <000000000000d682ec06133ad9d2@google.com>
Date: Sat, 09 Mar 2024 06:09:03 -0800
From: syzbot <syzbot+1047e42179f502f2b0a2@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, hdanton@...a.com, 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?] possible deadlock in mnt_want_write_file

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=164f208e180000
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=1047e42179f502f2b0a2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=116d8055e80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15687d81e80000

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