Re: Signed divides vs shifts (Re: [Security] /dev/urandom uses uninit bytes, leaks user data)

From: Ray Lee
Date: Mon Dec 17 2007 - 13:05:48 EST


On Dec 17, 2007 9:55 AM, Eric Dumazet <dada1@xxxxxxxxxxxxx> wrote:
> - mid = (last - first) / 2 + first;
> + while (low <= high) {
> + mid = (low + high) / 2;

I think you just introduced a bug. Think about what happens if
low=high=MAX_LONG/2 + 1.
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