From: Avi Kivity <avi@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>,
qemu-devel@nongnu.org, Blue Swirl <blauwirbel@gmail.com>
Cc: Paul Moore <pmoore@redhat.com>, Peter Maydell <peter.maydell@linaro.org>
Subject: Re: [Qemu-devel] [PATCH v8 1.0] configure: build position independent executables on x86-Linux hosts
Date: Sun, 20 Nov 2011 11:11:28 +0200 [thread overview]
Message-ID: <4EC8C440.8040801@redhat.com> (raw)
In-Reply-To: <1321380737-23007-1-git-send-email-avi@redhat.com>
On 11/15/2011 08:12 PM, Avi Kivity wrote:
> Change the default on x86 Linux hosts to building PIE (position
> independent executables); instead of restricting the option to
> user-only targets, apply it to all targets.
>
> In addition, set the relocation sections to read-only (relro) when
> available; this reduces the attack surface by disallowing changes to
> relocation tables at runtime.
>
> While PIE reduces performance and relro increases load time, it
> greatly improves security, with the potential to reduce a code
> execution vulnerability to a self denial of service.
>
> Non-x86 are not changed, as they require TCG changes; neither are
> non-Linux, due to lack of test coverage.
>
>
Ping.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-11-20 9:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-15 18:12 [Qemu-devel] [PATCH v8 1.0] configure: build position independent executables on x86-Linux hosts Avi Kivity
2011-11-20 9:11 ` Avi Kivity [this message]
2011-11-20 17:34 ` Blue Swirl
2011-11-21 8:39 ` Avi Kivity
2011-11-29 8:32 ` Brad Smith
2011-11-22 0:22 ` Anthony Liguori
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