mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@kernel.org>
To: Juergen Gross <jgross@suse.com>
Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	x86@kernel.org, lenb@kernel.org, rafael.j.wysocki@intel.com,
	hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com
Subject: Re: [PATCH] x86/acpi: check rsdp address received via bootparams to be valid
Date: Tue, 16 Jan 2018 16:46:30 +0100	[thread overview]
Message-ID: <20180116154630.ke53suvokynj73qd@gmail.com> (raw)
In-Reply-To: <20180116135730.19216-1-jgross@suse.com>


* Juergen Gross <jgross@suse.com> wrote:

> There seem to exist several grub2 versions trashing
> boot_params.hdr.acpi_rsdp_addr.
> 
> So don't just believe this address to be valid, but verify it pointing
> to a valid RSDP table.

Exactly what kind of values do those Grub2 versions put into that field? Pointer 
to something, or random noise?

Also, what exactly does 'validation' mean, how robustly does it filter out of spec 
uses of the boot protocol?

Thanks,

	Ingo

  reply	other threads:[~2018-01-16 15:46 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-16 13:57 Juergen Gross
2018-01-16 15:46 ` Ingo Molnar [this message]
2018-01-16 15:56   ` Juergen Gross
2018-01-16 16:35     ` Ingo Molnar
2018-01-17 12:28       ` Juergen Gross
2018-01-17 15:34         ` Ingo Molnar
2018-01-17 18:12           ` Juergen Gross
2018-02-13 16:32             ` Ingo Molnar
2018-02-13 16:48               ` Juergen Gross
2018-01-17 11:49 ` Rafael J. Wysocki
2018-01-17 12:20   ` Juergen Gross

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20180116154630.ke53suvokynj73qd@gmail.com \
    --to=mingo@kernel.org \
    --cc=hpa@zytor.com \
    --cc=jgross@suse.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=rafael.j.wysocki@intel.com \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®