linux-kernel - Re: "WARNING in max_vclocks_store" in Linux kernel version 6.13.0-rc2

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Message-ID: <20250103091906.GD1977892@ZenIV>
Date: Fri, 3 Jan 2025 09:19:06 +0000
From: Al Viro <viro@...iv.linux.org.uk>
To: cheung wall <zzqq0103.hey@...il.com>
Cc: Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: "WARNING in max_vclocks_store" in Linux kernel version 6.13.0-rc2

On Fri, Jan 03, 2025 at 04:19:35PM +0800, cheung wall wrote:
> Hello,
> 
> I am writing to report a potential vulnerability identified in the
> Linux Kernel version 6.13.0-rc2. This issue was discovered using our
> custom vulnerability discovery tool.
>
> HEAD commit: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 (tag: v6.13-rc2)
> 
> Detailed Call Stack:

Out of curiosity, what would you expect any of us to be able to do with that
information, given that we
	* have no information about that tool of yours
	* have no idea how to interpret those call chains
	* have no way to compare those for different commits
etc?

Seriously, step back and imagine somebody with zero information about your tool
staring at the email you've sent.

Al, completely bewildered...