linux-kernel - Re: net: socket: NULL ptr deref in sendmsg

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: <20140728.171900.1527499085392907198.davem@davemloft.net>
Date:	Mon, 28 Jul 2014 17:19:00 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	ryabinin.a.a@...il.com, a.ryabinin@...sung.com,
	sasha.levin@...cle.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, davej@...hat.com, edumazet@...gle.com
Subject: Re: net: socket: NULL ptr deref in sendmsg

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Sat, 26 Jul 2014 17:54:40 +0200

> On Sa, 2014-07-26 at 19:48 +0400, Andrey Ryabinin wrote:
>> 2014-07-26 2:15 GMT+04:00 Hannes Frederic Sowa <hannes@...essinduktion.org>:
>> > Otherwise I would just set msg_namelen = 0, too, and just not handle
>> > passed in NULL pointers to sockaddrs.
>> >
>> 
>> I like that, how about such chage:
 ...
> LGTM! Can you send a patch?

I definitely agree that we should treat NULL as no address specified.
--
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/