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:	Fri, 05 Sep 2014 14:42:22 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:	Ani Sinha <ani@...sta.com>, David Miller <davem@...emloft.net>,
	"matthew.leach" <matthew.leach@....com>, netdev@...r.kernel.org,
	fenner <fenner@...sta.com>, fruggeri <fruggeri@...sta.com>,
	travisb <travisb@...sta.com>
Subject: Re: [PATCH] net: socket: do not validate msg_namelen unless
 msg_name is non-NULL

On Fri, 2014-09-05 at 23:26 +0200, Hannes Frederic Sowa wrote:

> Yes, I understood. Same issues with sin6_flowinfo where a specific
> setsockopt is needed so the kernel will look at it at all.
> 
> If you set msg_namelen = 0 if msg_name == NULL prior to the < 0 check it
> should not trigger the return -EINVAL and also we don't run into the
> unsafe implicit conversion case when comparing msg_namelen with the
> result of the sizeof(). Do you see any problems with that?

BTW, it looks some of the tests are done in different places, like
verify_iovec()

We certainly can cleanup the confusion.


--
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

Powered by blists - more mailing lists