From: Daniel Micay <danielmicay@gmail.com>
To: Bhupesh Sharma <bhsharma@redhat.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
kernel-hardening@lists.openwall.com
Cc: bhupesh.linux@gmail.com, Anton Blanchard <anton@samba.org>,
Daniel Cashman <dcashman@android.com>,
Kees Cook <keescook@chromium.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [kernel-hardening] [PATCH] powerpc: Increase ELF_ET_DYN_BASE to 1TB for 64-bit applications
Date: Mon, 05 Jun 2017 08:22:46 -0400 [thread overview]
Message-ID: <1496665366.343.1.camel@gmail.com> (raw)
In-Reply-To: <1496642591-1373-1-git-send-email-bhsharma@redhat.com>
Rather than doing this, the base should just be split for an ELF
interpreter like PaX. It makes sense for a standalone executable to be
as low in the address space as possible. Doing that ASAP fixes issues
like this and opens up the possibility of fixing stack mapping ASLR
entropy on various architectures. It should be a pretty small change.
next prev parent reply other threads:[~2017-06-05 12:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-05 6:03 [PATCH] powerpc: Increase ELF_ET_DYN_BASE to 1TB for 64-bit applications Bhupesh Sharma
2017-06-05 12:22 ` Daniel Micay [this message]
2017-06-07 9:29 ` [kernel-hardening] " Michael Ellerman
2017-06-07 10:34 ` Bhupesh SHARMA
2017-06-07 18:29 ` Kees Cook
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