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32f5376003
This patch modifies __nf_ct_try_assign_helper in a way that invalidates support for the following scenario: 1) attach the helper A for first time when the conntrack is created 2) attach new (different) helper B due to changes the reply tuple caused by NAT eg. port redirection from TCP/21 to TCP/5060 with both FTP and SIP helpers loaded, which seems to be a quite unorthodox scenario. I can provide a more elaborated patch to support this scenario but explicit helper attachment provides a better solution for this since now the use can attach the helpers consistently, without relying on the automatic helper lookup magic. This patch fixes a possible out of bound zeroing of the conntrack helper extension if the helper B uses more memory for its private data than helper A. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> |
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| .. | ||
| ipset | ||
| ipvs | ||
| core.c | ||
| Kconfig | ||
| Makefile | ||
| nf_conntrack_acct.c | ||
| nf_conntrack_amanda.c | ||
| nf_conntrack_broadcast.c | ||
| nf_conntrack_core.c | ||
| nf_conntrack_ecache.c | ||
| nf_conntrack_expect.c | ||
| nf_conntrack_extend.c | ||
| nf_conntrack_ftp.c | ||
| nf_conntrack_h323_asn1.c | ||
| nf_conntrack_h323_main.c | ||
| nf_conntrack_h323_types.c | ||
| nf_conntrack_helper.c | ||
| nf_conntrack_irc.c | ||
| nf_conntrack_l3proto_generic.c | ||
| nf_conntrack_netbios_ns.c | ||
| nf_conntrack_netlink.c | ||
| nf_conntrack_pptp.c | ||
| nf_conntrack_proto.c | ||
| nf_conntrack_proto_dccp.c | ||
| nf_conntrack_proto_generic.c | ||
| nf_conntrack_proto_gre.c | ||
| nf_conntrack_proto_sctp.c | ||
| nf_conntrack_proto_tcp.c | ||
| nf_conntrack_proto_udp.c | ||
| nf_conntrack_proto_udplite.c | ||
| nf_conntrack_sane.c | ||
| nf_conntrack_sip.c | ||
| nf_conntrack_snmp.c | ||
| nf_conntrack_standalone.c | ||
| nf_conntrack_tftp.c | ||
| nf_conntrack_timeout.c | ||
| nf_conntrack_timestamp.c | ||
| nf_internals.h | ||
| nf_log.c | ||
| nf_queue.c | ||
| nf_sockopt.c | ||
| nf_tproxy_core.c | ||
| nfnetlink.c | ||
| nfnetlink_acct.c | ||
| nfnetlink_cthelper.c | ||
| nfnetlink_cttimeout.c | ||
| nfnetlink_log.c | ||
| nfnetlink_queue.c | ||
| x_tables.c | ||
| xt_addrtype.c | ||
| xt_AUDIT.c | ||
| xt_CHECKSUM.c | ||
| xt_CLASSIFY.c | ||
| xt_cluster.c | ||
| xt_comment.c | ||
| xt_connbytes.c | ||
| xt_connlimit.c | ||
| xt_connmark.c | ||
| xt_CONNSECMARK.c | ||
| xt_conntrack.c | ||
| xt_cpu.c | ||
| xt_CT.c | ||
| xt_dccp.c | ||
| xt_devgroup.c | ||
| xt_dscp.c | ||
| xt_DSCP.c | ||
| xt_ecn.c | ||
| xt_esp.c | ||
| xt_hashlimit.c | ||
| xt_helper.c | ||
| xt_hl.c | ||
| xt_HL.c | ||
| xt_HMARK.c | ||
| xt_IDLETIMER.c | ||
| xt_iprange.c | ||
| xt_ipvs.c | ||
| xt_LED.c | ||
| xt_length.c | ||
| xt_limit.c | ||
| xt_LOG.c | ||
| xt_mac.c | ||
| xt_mark.c | ||
| xt_multiport.c | ||
| xt_nfacct.c | ||
| xt_NFLOG.c | ||
| xt_NFQUEUE.c | ||
| xt_NOTRACK.c | ||
| xt_osf.c | ||
| xt_owner.c | ||
| xt_physdev.c | ||
| xt_pkttype.c | ||
| xt_policy.c | ||
| xt_quota.c | ||
| xt_RATEEST.c | ||
| xt_rateest.c | ||
| xt_realm.c | ||
| xt_recent.c | ||
| xt_repldata.h | ||
| xt_sctp.c | ||
| xt_SECMARK.c | ||
| xt_set.c | ||
| xt_socket.c | ||
| xt_state.c | ||
| xt_statistic.c | ||
| xt_string.c | ||
| xt_TCPMSS.c | ||
| xt_tcpmss.c | ||
| xt_TCPOPTSTRIP.c | ||
| xt_tcpudp.c | ||
| xt_TEE.c | ||
| xt_time.c | ||
| xt_TPROXY.c | ||
| xt_TRACE.c | ||
| xt_u32.c | ||