linux-kernel - Re: [syzbot] [overlayfs?] general protection fault in clone_private

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Message-ID: <67a706d1.050a0220.3d72c.0020.GAE@google.com>
Date: Fri, 07 Feb 2025 23:25:05 -0800
From: syzbot <syzbot+62dfea789a2cedac1298@...kaller.appspotmail.com>
To: amir73il@...il.com, brauner@...nel.org, jack@...e.cz, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-unionfs@...r.kernel.org, lizhi.xu@...driver.com, mike@...ynton.com, 
	miklos@...redi.hu, syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: [syzbot] [overlayfs?] general protection fault in clone_private_mount

syzbot has bisected this issue to:

commit ae63304102ecd597130ecea27395739a6a6371b7
Author: Christian Brauner <brauner@...nel.org>
Date:   Thu Jan 23 19:19:48 2025 +0000

    fs: allow detached mounts in clone_private_mount()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10cb5ca4580000
start commit:   808eb958781e Add linux-next specific files for 20250206
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=12cb5ca4580000
console output: https://syzkaller.appspot.com/x/log.txt?x=14cb5ca4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=88b25e5d30d576e4
dashboard link: https://syzkaller.appspot.com/bug?extid=62dfea789a2cedac1298
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16346df8580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=117e80e4580000

Reported-by: syzbot+62dfea789a2cedac1298@...kaller.appspotmail.com
Fixes: ae63304102ec ("fs: allow detached mounts in clone_private_mount()")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection