Sorry let me resend in plain text mode. On Thu, Mar 9, 2017 at 1:10 PM, Eric Dumazet <eric.dumazet@xxxxxxxxx> wrote: > On Thu, 2017-03-09 at 12:15 +1100, Jon Maxwell wrote: >> We have seen a few incidents lately where a dst_enty has been freed >> with a dangling TCP socket reference (sk->sk_dst_cache) pointing to that >> dst_entry. If the conditions/timings are right a crash then ensues when the >> freed dst_entry is referenced later on. A Common crashing back trace is: > > Very nice catch ! > Thanks Eric. > Don't we have a similar issue for IPv6 ? > > Good point. We checked and as far as we can tell IPv6 does not invalidate the route. So it should be safer. -- To unsubscribe from this list: send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
