linux-kernel - Re: [PATCH] fs/elf: Fix kernel pointer leak

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Message-ID: <YVkn2GseBWtOowHB@zeniv-ca.linux.org.uk>
Date:   Sun, 3 Oct 2021 03:47:36 +0000
From:   Al Viro <viro@...iv.linux.org.uk>
To:     Guo Zhi <qtxuning1999@...u.edu.cn>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fs/elf: Fix kernel pointer leak

On Wed, Sep 29, 2021 at 09:17:02PM +0800, Guo Zhi wrote:
> Pointers should be printed with %p rather than %px
> which printed kernel pointer directly.
> Change %px to %p to print the secured pointer.

Huh?  What makes it a kernel pointer?  It's a userland address...