linux-kernel - Re: [PATCH] ref_tracker: use %p instead of %px in debugfs dentry name

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Message-ID: <741ba76709df27536a278412d00ddb1d52a25cdb.camel@kernel.org>
Date: Tue, 05 Aug 2025 16:39:50 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Eric Dumazet
	 <edumazet@...gle.com>, Kees Cook <kees@...nel.org>, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ref_tracker: use %p instead of %px in debugfs dentry
 name

On Thu, 2025-07-31 at 07:13 -0700, Jakub Kicinski wrote:
> On Thu, 31 Jul 2025 07:57:05 -0400 Jeff Layton wrote:
> > As Kees points out, this is a kernel address leak, and debugging is
> > not a sufficiently good reason to expose the real kernel address.
> > 
> > Fixes: 65b584f53611 ("ref_tracker: automatically register a file in debugfs for a ref_tracker_dir")
> > Reported-by: Kees Cook <kees@...nel.org>
> > Closes: https://lore.kernel.org/netdev/202507301603.62E553F93@keescook/
> > Signed-off-by: Jeff Layton <jlayton@...nel.org>
> > ---
> > I trust that Kees is right here, so let's go ahead and fix this. I gave
> > this a quick build and boot this morning and it did the right thing.
> 
> Assuming Andrew will take this one since you haven't cced netdev@ ..

Ahh yeah, it wasn't net/ specific so I didn't think to add netdev.
Andrew, would you mind picking this one up?

Thanks,
-- 
Jeff Layton <jlayton@...nel.org>