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Date: Thu, 01 Nov 2012 11:56:29 -0400 (EDT) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: brouer@...hat.com, netdev@...r.kernel.org, pmatouse@...hat.com, shemminger@...tta.com Subject: Re: [net PATCH V2] net: fix divide by zero in tcp algorithm illinois From: Eric Dumazet <eric.dumazet@...il.com> Date: Wed, 31 Oct 2012 18:14:38 +0100 > On Wed, 2012-10-31 at 13:45 +0100, Jesper Dangaard Brouer wrote: >> 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) >> > >> Cc: Petr Matousek <pmatouse@...hat.com> >> Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com> >> >> --- > > Acked-by: Eric Dumazet <edumazet@...gle.com> Applied, thanks everyone. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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