linux-kernel - Re: [syzbot] [btrfs?] possible deadlock in btrfs_read_chunk

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: <685cea8e.050a0220.2303ee.014f.GAE@google.com>
Date: Wed, 25 Jun 2025 23:37:02 -0700
From: syzbot <syzbot+fa90fcaa28f5cd4b1fc1@...kaller.appspotmail.com>
To: clm@...com, dsterba@...e.com, josef@...icpanda.com, 
	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org, 
	quwenruo.btrfs@....com, syzkaller-bugs@...glegroups.com, wqu@...e.com
Subject: Re: [syzbot] [btrfs?] possible deadlock in btrfs_read_chunk_tree

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

fs/btrfs/ioctl.c:5417:1: error: function definition is not allowed here
fs/btrfs/ioctl.c:5430:7: error: expected '}'

Tested on:

commit:         86186e83 btrfs: implement remove_bdev super operation ..
git tree:       https://github.com/adam900710/linux.git shutdown
kernel config:  https://syzkaller.appspot.com/x/.config?x=58afc4b78b52b7e3
dashboard link: https://syzkaller.appspot.com/bug?extid=fa90fcaa28f5cd4b1fc1
compiler:       Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6

Note: no patches were applied.