From: "H. Peter Anvin" <hpa@zytor.com>
To: Andreas Robinson <andr345@gmail.com>
Cc: John Stoffel <john@stoffel.org>, Alain Knaff <alain@knaff.lu>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] lib: add fast lzo decompressor
Date: Fri, 03 Apr 2009 11:35:44 -0700 [thread overview]
Message-ID: <49D65700.5060202@zytor.com> (raw)
In-Reply-To: <1238752196.8118.185.camel@andreas-desktop>
Andreas Robinson wrote:
>
> The kernel and initramfs images are implicitly trusted, but that is not
> unique to this implementation. None of the decompressors check the data
> e.g by comparing checksums, AFAICT.
>
That's not true. At least the gzip decompressor definitely checks the
resulting CRC32. Being a CRC32, it's a test against corruption, not
malicious injection, but if you have malicious injection problems this
can't help you anyway.
However, corruption problems can and do happen during boot, and it's
really important that we get some kind of useful notification.
-hpa
next prev parent reply other threads:[~2009-04-03 18:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-01 13:40 [PATCH 0/2] lib, initramfs: Add initramfs LZO compression Andreas Robinson
2009-04-01 13:40 ` [PATCH 1/2] lib: add fast lzo decompressor Andreas Robinson
2009-04-01 16:12 ` H. Peter Anvin
2009-04-01 19:22 ` Andreas Robinson
2009-04-01 20:55 ` H. Peter Anvin
2009-04-01 22:27 ` Andreas Robinson
2009-04-01 22:42 ` H. Peter Anvin
2009-04-01 23:11 ` Arjan van de Ven
2009-04-01 23:40 ` Nigel Cunningham
2009-04-02 12:30 ` Andreas Robinson
2009-04-02 20:59 ` Nigel Cunningham
2009-04-03 10:54 ` Andreas Robinson
2009-04-03 11:48 ` Nigel Cunningham
2009-04-03 12:53 ` Andreas Robinson
2009-04-03 23:28 ` Nigel Cunningham
2009-04-02 0:02 ` H. Peter Anvin
2009-04-02 12:13 ` Andreas Robinson
2009-04-02 14:30 ` John Stoffel
2009-04-03 9:49 ` Andreas Robinson
2009-04-03 18:35 ` H. Peter Anvin [this message]
2009-04-04 14:34 ` Andreas Robinson
2009-04-01 13:40 ` [PATCH 2/2] lib, initramfs: add support for LZO-compressed initramfs Andreas Robinson
2009-04-01 19:29 ` [PATCH 3/3] lib: enable lzo-compressed kernels Andreas Robinson
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=49D65700.5060202@zytor.com \
--to=hpa@zytor.com \
--cc=alain@knaff.lu \
--cc=andr345@gmail.com \
--cc=john@stoffel.org \
--cc=linux-kernel@vger.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