netdev - Re: [PATCH] net: af_packet: Validate parameter size for PACKET

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Date:	Wed, 27 Feb 2013 15:19:28 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	linux@...ck-us.net
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] net: af_packet: Validate parameter size for
 PACKET_HDRLEN control message

The first thing this function does is test whether len < 0, therefore
your change is unnecessary.

If the user gives us something between 0 and sizeof(int), that's
their problem, and they'll get a partial int copied back into
userspace as a result instead of the complete integer.

Please don't blindly silence warnings like this, thanks.
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