linux-kernel - Re: [PATCH] exec: Make do_coredump more robust and safer when using pipes in core

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Date:	Fri, 26 Jun 2009 09:20:01 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Neil Horman <nhorman@...driver.com>
Cc:	linux-kernel@...r.kernel.org, earl_chew@...lent.com,
	Oleg Nesterov <oleg@...hat.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH] exec: Make do_coredump more robust and safer when using
 pipes in core_pattern

On Fri, 26 Jun 2009 06:48:04 -0400 Neil Horman <nhorman@...driver.com> wrote:

> > > --- a/kernel/sysctl.c
> > > +++ b/kernel/sysctl.c
> > > @@ -75,6 +75,7 @@ extern int max_threads;
> > >  extern int core_uses_pid;
> > >  extern int suid_dumpable;
> > >  extern char core_pattern[];
> > > +extern unsigned int core_pipe_limit;
> > 
> > Bah.
> > 
> > We should fix this one day.
> > 
> Is there a particular way you'd like to see it fixed?

Not in the context of this patch.

One way would be to add a new sysctl-externs.h and then put all the
declarations in there.  That file gets included by sysctl.c and by each
file which shares a global with sysctl.c


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