linux-kernel - Re: [syzbot] [net?] general protection fault in phy_start_cable_test

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: <00000000000092bfa90620b4d71d@google.com>
Date: Tue, 27 Aug 2024 19:09:03 -0700
From: syzbot <syzbot+5cf270e2069645b6bd2c@...kaller.appspotmail.com>
To: eadavis@...com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] general protection fault in phy_start_cable_test_tdr

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING: lock held when returning to user space in ethnl_act_cable_test_tdr

================================================
WARNING: lock held when returning to user space!
6.11.0-rc4-syzkaller-00681-ge5899b60f52a-dirty #0 Not tainted
------------------------------------------------
syz.0.15/6073 is leaving the kernel with locks still held!
1 lock held by syz.0.15/6073:
 #0: ffffffff8fc84c08 (rtnl_mutex){+.+.}-{3:3}, at: ethnl_act_cable_test_tdr+0x3d2/0x10c0 net/ethtool/cabletest.c:341

Tested on:

commit:         e5899b60 Merge branch '100GbE' of git://git.kernel.org..
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17c0c7a7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df2f0ed7e30a639d
dashboard link: https://syzkaller.appspot.com/bug?extid=5cf270e2069645b6bd2c
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16325a43980000