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Date: Mon, 27 Nov 2017 16:03:56 -0800
From: Linus Torvalds <>
To: "Tobin C. Harding" <>
Cc: "Jason A. Donenfeld" <>, "Theodore Ts'o" <>, Kees Cook <>, 
	Paolo Bonzini <>, Tycho Andersen <>, 
	"Roberts, William C" <>, Tejun Heo <>, 
	Jordan Glover <>, Greg KH <>, 
	Petr Mladek <>, Joe Perches <>, Ian Campbell <>, 
	Sergey Senozhatsky <>, Catalin Marinas <>, 
	Will Deacon <>, Steven Rostedt <>, 
	Chris Fries <>, Dave Weinstein <>, 
	Daniel Micay <>, Djalal Harouni <>, 
	Radim Krčmář <>, 
	Linux Kernel Mailing List <>, KVM list <>, 
	"" <>
Subject: Re: [PATCH 0/5] add printk specifier %px, unique identifier

On Mon, Nov 27, 2017 at 3:40 PM, Tobin C. Harding <> wrote:
> Finally, with this patch set in place, we have the added benefit that
> newbies (me) can quietly go around the kernel 'sweeping up' after
> leaking addresses. This as apposed to using a hammer and hashing all
> %p. And if this is deemed too little and too slow we can always search
> and replace '%p' with '%px'.

So the big remaining ones for me are the /proc/<pid>/stack (stack
pointers) and the /proc/net/* ones.

I'm a bit disappointed that those haven't been fixed already and
aren't even in this series..

Since I was the proponent of the whole "leaking_addresses" script
model, I guess I can't complain when %p isn't then just made to hash
everything, but it does feel like this has been dragging out a bit..


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