Re: [net PATCH V2] net: fix divide by zero in tcp algorithm illinois

From: Eric Dumazet <redacted>
Date: Wed, 31 Oct 2012 18:14:38 +0100

On Wed, 2012-10-31 at 13:45 +0100, Jesper Dangaard Brouer wrote:

quoted

Reading TCP stats when using TCP Illinois congestion control algorithm
can cause a divide by zero kernel oops.

The division by zero occur in tcp_illinois_info() at:
 do_div(t, ca->cnt_rtt);
where ca->cnt_rtt can become zero (when rtt_reset is called)

quoted

Cc: Petr Matousek <redacted>
Signed-off-by: Jesper Dangaard Brouer <redacted>

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Acked-by: Eric Dumazet <redacted>

Applied, thanks everyone.