netdev - Re: [PATCH 2/2] [IPV6]: Ensure to truncate result and return full length for sticky options.

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>] [day] [month] [year] [list]

Message-Id: <20070310.101328.32265651.yoshfuji@linux-ipv6.org>
Date:	Sat, 10 Mar 2007 10:13:28 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	davem@...emloft.net
Cc:	chrisw@...s-sol.org, netdev@...r.kernel.org,
	yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH 2/2] [IPV6]: Ensure to truncate result and return full
 length for sticky options.

In article <20070309.161506.70220159.davem@...emloft.net> (at Fri, 09 Mar 2007 16:15:06 -0800 (PST)), David Miller <davem@...emloft.net> says:

> > on arch's that don't protect < 0 copy_to_user like i386 does).  Here's
> > a simple fix ontop of yoshifuji's two changes.  Hope that's it ;-)
> 
> copy_to_user() will check it, actually, it will make sure that
> optval + len doesn't wrap or overlap into kernel space.
> 
> Actually, like sparc64 it BUG's on negative length so we have
> to fix this :-)

Oh I did not know this BUG.
Anyway, thanks for taking care of this.

--yoshfuji
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html