linux-kernel - Re: [ 26/48] net:socket: set msg_namelen to 0 if msg_name is passed as NULL in msghdr struct from userland.

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Message-ID: <20150516053142.GA7712@1wt.eu>
Date:	Sat, 16 May 2015 07:31:43 +0200
From:	Willy Tarreau <w@....eu>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Ani Sinha <ani@...sta.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [ 26/48] net:socket: set msg_namelen to 0 if msg_name is passed as NULL in msghdr struct from userland.

Hi Ben,

On Fri, May 15, 2015 at 10:08:22PM +0100, Ben Hutchings wrote:
> I think you'll also want this related fix:
> 
> commit 91edd096e224941131f896b86838b1e59553696a
> Author: Catalin Marinas <catalin.marinas@....com>
> Date:   Fri Mar 20 16:48:13 2015 +0000
> 
>     net: compat: Update get_compat_msghdr() to match copy_msghdr_from_user() behaviour

Ah good catch, I missed it. Now merged and tested.
BTW, I've added your s-o-b on the two other patches.

Thanks!
Willy

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