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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090626173026.GB7337@hmsreliant.think-freely.org>
Date:	Fri, 26 Jun 2009 13:30:26 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
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, Jun 26, 2009 at 09:20:01AM -0700, Andrew Morton wrote:
> 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
> 
Thanks, I'll keep that in mind, and look into squaring it away when I have a few
extra cycles.
Neil

> 
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/