netdev - Re: [PATCH]IPv6:remove duplicate check of optlen when setsockopt with IPV6

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: <20090114.214521.132298096.davem@davemloft.net>
Date:	Wed, 14 Jan 2009 21:45:21 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	yanghy@...fujitsu.com, netdev@...r.kernel.org
Subject: Re: [PATCH]IPv6:remove duplicate check of optlen when setsockopt
 with IPV6_PKTINFO option

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Thu, 15 Jan 2009 16:37:02 +1100

> On Thu, Jan 15, 2009 at 01:34:03PM +0800, Yang Hongyang wrote:
> > 
> > Dave,there are some of the code elsewhere return EFAULT when
> > optval=NULL,I will post a patch to fix them:)
> 
> I disagree.  The concept of a user-space NULL pointer is different
> to that of a kernel-space NULL pointer, so the kernel should not
> be treating a user-space NULL pointer differently than any other
> pointer.

I agree with Herbert, but of course we have to adhere to cases
where APIs actually define a user NULL pointer to have a specific
meaning.
--
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