linux-kernel - Re: [syzbot] [udf?] KASAN: use-after-free Read in udf_sync

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Message-ID: <000000000000d33080061046ed47@google.com>
Date: Wed, 31 Jan 2024 16:18:04 -0800
From: syzbot <syzbot+82df44ede2faca24c729@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, groeck@...gle.com, hdanton@...a.com, 
	jack@...e.com, jack@...e.cz, kernel@...labora.com, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	shreeya.patel@...labora.com, steve.magnani@...idescorp.com, 
	steve@...idescorp.com, syzkaller-bugs@...glegroups.com, zsm@...gle.com
Subject: Re: [syzbot] [udf?] KASAN: use-after-free Read in udf_sync_fs

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=11282540180000
start commit:   55cb5f43689d Merge tag 'trace-v6.7-rc6' of git://git.kerne..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=e5751b3a2226135d
dashboard link: https://syzkaller.appspot.com/bug?extid=82df44ede2faca24c729
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12dbd63ee80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1534bed1e80000

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