From: Maxime Chevallier <maxime.chevallier@bootlin.com>
To: syzbot <syzbot+c641161e97237326ea74@syzkaller.appspotmail.com>
Cc: andrew@lunn.ch, christophe.leroy@csgroup.eu, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org,
linux-kernel@vger.kernel.org, linux@treblig.org,
netdev@vger.kernel.org, pabeni@redhat.com,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [net?] WARNING: lock held when returning to user space in ethnl_act_cable_test
Date: Mon, 26 Aug 2024 13:54:33 +0200 [thread overview]
Message-ID: <20240826135433.47c87f62@fedora-3.home> (raw)
In-Reply-To: <00000000000045769206209237db@google.com>
Hello,
On Mon, 26 Aug 2024 01:50:24 -0700
syzbot <syzbot+c641161e97237326ea74@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=115eb015980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=df2f0ed7e30a639d
> dashboard link: https://syzkaller.appspot.com/bug?extid=c641161e97237326ea74
> 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=17d2d609980000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1741fbf5980000
>
> 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 3688ff3077d3f334cee1d4b61d8bfb6a9508c2d2
> Author: Maxime Chevallier <maxime.chevallier@bootlin.com>
> Date: Wed Aug 21 15:10:05 2024 +0000
>
> net: ethtool: cable-test: Target the command to the requested PHY
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=146fcd8d980000
> final oops: https://syzkaller.appspot.com/x/report.txt?x=166fcd8d980000
> console output: https://syzkaller.appspot.com/x/log.txt?x=126fcd8d980000
Looks like there's indeed a mistake in the error path for that command,
I'll send a fix for that.
Thanks,
Maxime
prev parent reply other threads:[~2024-08-26 11:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-26 8:50 [syzbot] [net?] WARNING: lock held when returning to user space in ethnl_act_cable_test syzbot
2024-08-26 11:54 ` Maxime Chevallier [this message]
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