linux-kernel - Re: [stable] [PATCH] x86, setup (2.6.30-stable) fix 80x34 and 80x60 console modes

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]

Date:	Mon, 29 Jun 2009 20:48:22 -0700
From:	Greg KH <greg@...ah.com>
To:	"H. Peter Anvin" <hpa@...nel.org>
Cc:	Marc Aurele La France <root@...berta.ca>,
	"H. Peter Anvin" <hpa@...ux.intel.com>, x86@...nel.org,
	stable@...nel.org, Research.Support@...berta.ca,
	linux-kernel@...r.kernel.org
Subject: Re: [stable] [PATCH] x86, setup (2.6.30-stable) fix 80x34 and
	80x60 console modes

On Mon, Jun 29, 2009 at 06:27:40PM -0700, H. Peter Anvin wrote:
> Marc Aurele La France wrote:
> > As coded, most INT10 calls in video-vga.c allow the compiler to assume EAX 
> > remains unchanged across them, which is not always the case.  This 
> > triggers an optimisation issue that causes vga_set_vertical_end() to be 
> > called with an incorrect number of scanlines.  Fix this by beefing up the 
> > asm constraints on these calls.
> > 
> > Reported-by: Marc Aurele La France <tsi@...ee86.org>
> > Signed-off-by: Marc Aurele La France <tsi@...ee86.org>
> > Acked-by: H. Peter Anvin <hpa@...or.com>
> 
> Note: this is not in upstream since upstream is not affected due to the
> new "BIOS glovebox" subsystem.

So it is a ".30 only" type patch?  Any older kernel versions affected?

thanks,

greg k-h
--
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/