Hi Dan,

Agreed. But maybe there is no usage scenario in which the boundary is actually 
crossed. Have to wait for ath9k developers to answer that.

Gr. AvS
________________________________________
From: Dan Carpenter [erro...@gmail.com]
Sent: Monday, December 20, 2010 1:42 PM
To: Arend Van Spriel
Cc: Vasanthakumar Thiagarajan; linux-wirel...@vger.kernel.org; 
ath9k-devel@lists.ath9k.org
Subject: Re: smatch stuff: potential read past the end of the buffer

On Mon, Dec 20, 2010 at 02:16:56AM -0800, Arend Van Spriel wrote:
> Hi Dan,
>
> Why not use min() function?
>     index = min(COMP_HDR_LEN + osize, 2046);
>     mchecksum = word[index] |
>                     (word[index + 1] << 8);
>
> Or would smatch miss this in its analysis?

That would silence the warning, but is it the right fix?  I thought
maybe we should make word a larger buffer?

regards,
dan carpenter




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