net: Add missing extra2 parameter for ip_default_ttl sysctl
Commit76e6ebfb40
("netns: add namespace parameter to rt_cache_flush") acceses the extra2 parameter of the ip_default_ttl ctl_table, but it is never set to a meaningful value. Whene84f84f276
("netns: place rt_genid into struct net") is applied, we'll oops in rt_cache_invalidate(). Set extra2 to init_net, to avoid that. Reported-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Sven Wegener <sven.wegener@stealer.net> Tested-by: Marcin Slusarz <marcin.slusarz@gmail.com> Acked-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -232,6 +232,7 @@ static struct ctl_table ipv4_table[] = {
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.mode = 0644,
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.proc_handler = &ipv4_doint_and_flush,
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.strategy = &ipv4_doint_and_flush_strategy,
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.extra2 = &init_net,
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},
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{
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.ctl_name = NET_IPV4_NO_PMTU_DISC,
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