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: <5359A243.9010606@zytor.com>
Date:	Thu, 24 Apr 2014 16:46:11 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Kees Cook <keescook@...omium.org>, Dave Young <dyoung@...hat.com>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: kaslr should avoid setup_data region

On 04/24/2014 03:50 PM, Kees Cook wrote:
> Ah, it sounds like boot_params.hdr.setup_data contains a series of
> e820-like entries chained together as a linked list? Which loaders
> currently populate that? Looks like EFI? Seems like
> arch/x86/boot/compressed/eboot.c works on setup_data at least.
> 
> I won't be in a position to test EFI booting for a while. If someone
> else took this, that would make it get fixed much faster.
> 
> Do you have examples where this is actually causing failures?
> 
> -Kees

Syslinux can populate it with arbitrary data; in particular Syslinux
uses it to pass FDT information if requested.

	-hpa


--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ