linux-kernel - Re: Regression in suspend to ram in 2.6.31-rc kernels

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: <200909120036.41725.rjw@sisk.pl>
Date:	Sat, 12 Sep 2009 00:36:41 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Chris Ball <cjb@...top.org>
Cc:	Zdenek Kabelac <zdenek.kabelac@...il.com>,
	Pavel Machek <pavel@....cz>,
	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	Christoph Hellwig <hch@....de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-mmc@...r.kernel.org, viro@...iv.linux.org.uk
Subject: Re: Regression in suspend to ram in 2.6.31-rc kernels

On Saturday 12 September 2009, Chris Ball wrote:
> Hi,
> 
>    > Well system could check basic card ids if they match after resume
> 
> No.  That (arguably) guarantees that it's the same card, but not that
> it wasn't modified in another machine during the suspend.

Generally speaking, we'd also need to check superblocks for this to work.
 
>    > if some users wants to crash his card by randomly swapping it
>    > during suspend/resume - I'd have no problem with that....
> 
> You should have a problem with it.  Taking a card from a suspended
> machine and working on it with a different machine is not a bizarre
> thing to want to do.

Agreed.

Thanks,
Rafael
--
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/