Re: [PATCH 1/4] NET: AX.25: Check ioctl arguments to avoid overflows further down the road.

[David Miller <davem@xxxxxxxxxxxxx>]

From: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Date: Thu, 24 Nov 2011 16:12:59 +0000

> Very large, nonsenical arguments or use in very extreme conditions could
> result in integer overflows.  Check ioctls arguments to avoid such
> overflows and return -EINVAL for too large arguments.
> 
> To allow the use of AX.25 for even the most extreme setup (think packet
> radio to the Phase 5E mars probe) we make no further attempt to clamp the
> argument range.
> 
> Originally reported by Fan Long <longfancn@xxxxxxxxx> and a first patch
> was sent by Xi Wang <xi.wang@xxxxxxxxx>.
> 
> Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>

Applied.
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