From: Maxime Chevallier <maxime.chevallier@bootlin.com>
To: syzbot <syzbot+ec369e6d58e210135f71@syzkaller.appspotmail.com>
Cc: andrew@lunn.ch, christophe.leroy@csgroup.eu,
danieller@nvidia.com, davem@davemloft.net, edumazet@google.com,
kory.maincent@bootlin.com, kuba@kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
pabeni@redhat.com, petrm@nvidia.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] WARNING in ethnl_req_get_phydev
Date: Mon, 26 Aug 2024 13:57:23 +0200 [thread overview]
Message-ID: <20240826135723.32c5aa58@fedora-3.home> (raw)
In-Reply-To: <0000000000004168390620923787@google.com>
Hello,
On Mon, 26 Aug 2024 01:50:24 -0700
syzbot <syzbot+ec369e6d58e210135f71@syzkaller.appspotmail.com> wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: f9db28bb09f4 Merge branch 'net-redundant-judgments'
> git tree: net-next
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=1051fa7b980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=df2f0ed7e30a639d
> dashboard link: https://syzkaller.appspot.com/bug?extid=ec369e6d58e210135f71
> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=113da825980000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d5f229980000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/585e02f7fe7b/disk-f9db28bb.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/b9faf5d24900/vmlinux-f9db28bb.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/f9df5868ea4f/bzImage-f9db28bb.xz
>
> The issue was bisected to:
>
> commit 31748765bed3fb7cebf4a32b43a6fdf91b9c23de
> Author: Maxime Chevallier <maxime.chevallier@bootlin.com>
> Date: Wed Aug 21 15:10:04 2024 +0000
>
> net: ethtool: pse-pd: Target the command to the requested PHY
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13d09047980000
> final oops: https://syzkaller.appspot.com/x/report.txt?x=10309047980000
> console output: https://syzkaller.appspot.com/x/log.txt?x=17d09047980000
Looks also like this is triggered because the validate callback doesn't
run under rtnl() as I wrongly assumed. I'll look into it.
Thanks,
Maxime
prev parent reply other threads:[~2024-08-26 11:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-26 8:50 [syzbot] [net?] WARNING in ethnl_req_get_phydev syzbot
2024-08-26 11:57 ` Maxime Chevallier [this message]
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