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Date: Sat, 20 Jan 2018 17:22:07 -0800
From: Kees Cook <>
To: David Windsor <>
Cc: Andrew Morton <>, 
	Linus Torvalds <>, Michal Hocko <>, 
	Ben Hutchings <>, Willy Tarreau <>, Hugh Dickins <>, 
	Oleg Nesterov <>, "Jason A. Donenfeld" <>, Rik van Riel <>, 
	Laura Abbott <>, Greg KH <>, Andy Lutomirski <>, 
	Linux-MM <>, linux-arch <>, 
	LKML <>,
Subject: Re: Re: [PATCH 0/3] exec: Pin stack limit during exec

On Fri, Jan 19, 2018 at 5:12 PM, David Windsor <> wrote:
> I have some spare cycles; is there any more relevant information outside of this thread?

Awesome, thanks! Context is in the other commits, but mainly I want to
double-check that nothing breaks with these changes, and that all the
races for changing stack rlimits during exec are fixed. And then, just
a sanity-check that the design approach to attaching the stack limit
to the bprm isn't crazy. :)


>>> [1] 04e35f4495dd ("exec: avoid RLIMIT_STACK races with prlimit()")
>>> [2] 779f4e1c6c7c ("Revert "exec: avoid RLIMIT_STACK races with prlimit()"")
>>> [3] to, "Subject: existing rlimit races?"

Kees Cook
Pixel Security

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