Date: Mon, 4 May 2020 11:15:05 -0400 From: Ed Maste <emaste@freebsd.org> To: Dewayne Geraghty <dewayne@heuristicsystems.com.au> Cc: freebsd-security@freebsd.org Subject: Re: ASLR/PIE status in FreeBSD HEAD Message-ID: <CAPyFy2BY7%2BREuYimQ076r8rHxg63BGz7S1FcxLbA4TMUs=BZxg@mail.gmail.com> In-Reply-To: <d63d9bd6-ff27-4bff-71ae-36e0894fae04@heuristicsystems.com.au> References: <CAPv3WKfYyVnfNDTPOEN6TF_GjJr=ThdNeB1yMtTEoQoxEdHMDg@mail.gmail.com> <b57fd929-9776-5ff8-f7f6-91a1c8089da3@heuristicsystems.com.au> <CAPyFy2DErURgvKASUk_wghdPD=KA2KqT5Osczf7ZO4NFobFnsQ@mail.gmail.com> <d63d9bd6-ff27-4bff-71ae-36e0894fae04@heuristicsystems.com.au>
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On Wed, 22 Apr 2020 at 02:10, Dewayne Geraghty <dewayne@heuristicsystems.com.au> wrote: > > Thank-you for the pointer to elfctl. Unfortunately it looks like I need > to create the section in the image file, due to my: (for example) > > # elfctl -l /usr/bin/ztest > Known features are: > aslr Disable ASLR > protmax Disable implicit PROT_MAX > stackgap Disable stack gap > elfctl: NT_FREEBSD_FEATURE_CTL note not found > > on > FreeBSD 12.1-STABLE #0 r359973M: Thu Apr 16 amd64 1201513 1201513 Ah, yes - r340701 needs to be MFC'd to stable/12 to make this work there.help
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