netdev - Re: [RFC] net,socket: introduce build_sockaddr_check helper to catch overflow at build time

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: <20091024.061209.39469983.davem@davemloft.net>
Date:	Sat, 24 Oct 2009 06:12:09 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	gorcunov@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [RFC] net,socket: introduce build_sockaddr_check helper to
 catch overflow at build time

From: Cyrill Gorcunov <gorcunov@...il.com>
Date: Sat, 24 Oct 2009 01:43:06 +0400

> Or say it could be something like that
> 
> #define __sockaddr(type, src)	\
> 	({ build_sockaddr_check(sizeof(type)); (type *) src; })
> 
> and say in function af_inet.c:inet_getname instead of
> 
> 	struct sockaddr_in *sin	= (struct sockaddr_in *)uaddr;
> 
> we may write like
> 
> 	struct sockaddr_in *sin	= __sockaddr(struct sockaddr_in, uaddr);
> 
> which would check the size.

Or even a "DECLARE_SOCKADDR(type, src, dest)" which encapsulates the
entire declaration statement.
--
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