linux-kernel - Re: [syzbot] [overlayfs?] WARNING in fast

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251130105214.9567-1-hdanton@sina.com>
Date: Sun, 30 Nov 2025 18:52:13 +0800
From: Hillf Danton <hdanton@...a.com>
To: syzbot <syzbot+b74150fd2ef40e716ca2@...kaller.appspotmail.com>
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [overlayfs?] WARNING in fast_dput

> Date: Sat, 29 Nov 2025 05:05:23 -0800	[thread overview]
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    7d31f578f323 Add linux-next specific files for 20251128
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=14db5f42580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=6336d8e94a7c517d
> dashboard link: https://syzkaller.appspot.com/bug?extid=b74150fd2ef40e716ca2
> compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1780a112580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10f6be92580000

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all