1f305323ff
When connection tracking entry (nf_conn) is about to copy itself it can have some of its extension users (like nat) as being already freed and thus not required to be copied. Actually looking at this function I suspect it was copied from nf_nat_setup_info() and thus bug was introduced. Report and testing from David <david@unsolicited.net>. [ Patrick McHardy states: I now understand whats happening: - new connection is allocated without helper - connection is REDIRECTed to localhost - nf_nat_setup_info adds NAT extension, but doesn't initialize it yet - nf_conntrack_alter_reply performs a helper lookup based on the new tuple, finds the SIP helper and allocates a helper extension, causing reallocation because of too little space - nf_nat_move_storage is called with the uninitialized nat extension So your fix is entirely correct, thanks a lot :) ] Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| arp_tables.c | ||
| arpt_mangle.c | ||
| arptable_filter.c | ||
| ip_queue.c | ||
| ip_tables.c | ||
| ipt_addrtype.c | ||
| ipt_ah.c | ||
| ipt_CLUSTERIP.c | ||
| ipt_ecn.c | ||
| ipt_ECN.c | ||
| ipt_iprange.c | ||
| ipt_LOG.c | ||
| ipt_MASQUERADE.c | ||
| ipt_NETMAP.c | ||
| ipt_owner.c | ||
| ipt_recent.c | ||
| ipt_REDIRECT.c | ||
| ipt_REJECT.c | ||
| ipt_SAME.c | ||
| ipt_tos.c | ||
| ipt_TOS.c | ||
| ipt_ttl.c | ||
| ipt_TTL.c | ||
| ipt_ULOG.c | ||
| iptable_filter.c | ||
| iptable_mangle.c | ||
| iptable_raw.c | ||
| Kconfig | ||
| Makefile | ||
| nf_conntrack_l3proto_ipv4_compat.c | ||
| nf_conntrack_l3proto_ipv4.c | ||
| nf_conntrack_proto_icmp.c | ||
| nf_nat_amanda.c | ||
| nf_nat_core.c | ||
| nf_nat_ftp.c | ||
| nf_nat_h323.c | ||
| nf_nat_helper.c | ||
| nf_nat_irc.c | ||
| nf_nat_pptp.c | ||
| nf_nat_proto_gre.c | ||
| nf_nat_proto_icmp.c | ||
| nf_nat_proto_tcp.c | ||
| nf_nat_proto_udp.c | ||
| nf_nat_proto_unknown.c | ||
| nf_nat_rule.c | ||
| nf_nat_sip.c | ||
| nf_nat_snmp_basic.c | ||
| nf_nat_standalone.c | ||
| nf_nat_tftp.c | ||