linux-kernel - Re: [syzbot] [fs?] KASAN: use-after-free Read in sysv_new

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Date: Wed, 07 Feb 2024 17:37:04 -0800
From: syzbot <syzbot+eda782c229b243c648e9@...kaller.appspotmail.com>
To: axboe@...nel.dk, brauner@...nel.org, hch@...radead.org, jack@...e.cz, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [fs?] KASAN: use-after-free Read in sysv_new_block

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=17ddd29fe80000
start commit:   01f856ae6d0c Merge tag 'net-6.1-rc8-2' of git://git.kernel..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
dashboard link: https://syzkaller.appspot.com/bug?extid=eda782c229b243c648e9
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=179d6e75880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=124b96a7880000

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