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25e94a997b
linux/net/netfilter
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Pablo Neira Ayuso 25e94a997b netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails 
The underlying nlmsg_multicast() already sets sk->sk_err for us to
notify socket overruns, so we should not do anything with this return
value. So we just call nfnetlink_set_err() if:

1) We fail to allocate the netlink message.

or

2) We don't have enough space in the netlink message to place attributes,
   which means that we likely need to allocate a larger message.

Before this patch, the internal ESRCH netlink error code was propagated
to userspace, which is quite misleading. Netlink semantics mandate that
listeners just hit ENOBUFS if the socket buffer overruns.

Reported-by: Alexander Alemayhu <alexander@alemayhu.com>
Tested-by: Alexander Alemayhu <alexander@alemayhu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2017-03-03 13:48:34 +01:00
..
ipset netfilter: ipset: Null pointer exception in ipset list:set 2017-02-19 19:08:47 +01:00
ipvs Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-02-03 16:58:20 -05:00
core.c netfilter: merge ctinfo into nfct pointer storage area 2017-02-02 14:31:56 +01:00
Kconfig netfilter: nft_exthdr: add TCP option matching 2017-02-08 14:17:09 +01:00
Makefile netfilter: nf_tables: add bitmap set type 2017-02-08 14:16:21 +01:00
nf_conntrack_acct.c
nf_conntrack_amanda.c
nf_conntrack_broadcast.c
nf_conntrack_core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-02-03 16:58:20 -05:00
nf_conntrack_ecache.c
nf_conntrack_expect.c netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value. 2017-02-26 17:06:59 +01:00
nf_conntrack_extend.c
nf_conntrack_ftp.c
nf_conntrack_h323_asn1.c
nf_conntrack_h323_main.c netfilter: Remove explicit rcu_read_lock in nf_hook_slow 2016-09-24 21:29:53 +02:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c netfilter: nf_ct_helper: warn when not applying default helper assignment 2017-02-06 12:03:35 +01:00
nf_conntrack_irc.c
nf_conntrack_l3proto_generic.c
nf_conntrack_labels.c
nf_conntrack_netbios_ns.c
nf_conntrack_netlink.c netfilter: ctnetlink: Fix regression in CTA_HELP processing 2017-02-06 12:49:05 +01:00
nf_conntrack_pptp.c
nf_conntrack_proto_dccp.c netfilter: conntrack: no need to pass ctinfo to error handler 2017-02-02 14:31:51 +01:00
nf_conntrack_proto_generic.c
nf_conntrack_proto_gre.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nf_conntrack_proto_sctp.c netfilter: conntrack: no need to pass ctinfo to error handler 2017-02-02 14:31:51 +01:00
nf_conntrack_proto_tcp.c netfilter: conntrack: no need to pass ctinfo to error handler 2017-02-02 14:31:51 +01:00
nf_conntrack_proto_udp.c netfilter: conntrack: no need to pass ctinfo to error handler 2017-02-02 14:31:51 +01:00
nf_conntrack_proto.c netfilter: conntrack: add nf_conntrack_default_on sysctl 2016-12-04 21:17:25 +01:00
nf_conntrack_sane.c
nf_conntrack_seqadj.c netfilter: seqadj: Fix the wrong ack adjust for the RST packet without ack 2016-09-25 14:54:01 +02:00
nf_conntrack_sip.c netfilter: nf_conntrack_sip: fix wrong memory initialisation 2017-03-03 13:48:31 +01:00
nf_conntrack_snmp.c
nf_conntrack_standalone.c netfilter: merge ctinfo into nfct pointer storage area 2017-02-02 14:31:56 +01:00
nf_conntrack_tftp.c
nf_conntrack_timeout.c
nf_conntrack_timestamp.c
nf_dup_netdev.c netfilter: add and use nf_fwd_netdev_egress 2016-12-06 21:48:22 +01:00
nf_internals.h netfilter: merge nf_iterate() into nf_hook_slow() 2016-11-03 11:52:59 +01:00
nf_log_common.c netfilter: nf_log: do not assume ethernet header in netdev family 2016-12-04 20:45:33 +01:00
nf_log_netdev.c netfilter: nf_log: do not assume ethernet header in netdev family 2016-12-04 20:45:33 +01:00
nf_log.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-02-03 16:58:20 -05:00
nf_nat_amanda.c
nf_nat_core.c netfilter: built-in NAT support for UDPlite 2016-12-04 20:45:32 +01:00
nf_nat_ftp.c
nf_nat_helper.c skbuff: add and use skb_nfct helper 2017-02-02 14:31:53 +01:00
nf_nat_irc.c
nf_nat_proto_common.c
nf_nat_proto_dccp.c netfilter: built-in NAT support for DCCP 2016-12-04 20:45:30 +01:00
nf_nat_proto_sctp.c netfilter: nat: skip checksum on offload SCTP packets 2016-12-07 13:22:50 +01:00
nf_nat_proto_tcp.c
nf_nat_proto_udp.c netfilter: nat: merge udp and udplite helpers 2017-01-03 14:33:25 +01:00
nf_nat_proto_unknown.c
nf_nat_redirect.c
nf_nat_sip.c
nf_nat_tftp.c
nf_queue.c netfilter: introduce accessor functions for hook entries 2016-12-06 21:42:15 +01:00
nf_sockopt.c
nf_synproxy_core.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nf_tables_api.c netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails 2017-03-03 13:48:34 +01:00
nf_tables_core.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nf_tables_inet.c
nf_tables_netdev.c
nf_tables_trace.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nfnetlink_acct.c
nfnetlink_cthelper.c netfilter: Remove explicit rcu_read_lock in nf_hook_slow 2016-09-24 21:29:53 +02:00
nfnetlink_cttimeout.c
nfnetlink_log.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
nfnetlink_queue.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
nfnetlink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2017-02-23 10:59:15 -05:00
nft_bitwise.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_byteorder.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_cmp.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_compat.c
nft_counter.c netfilter: nft_counter: rework atomic dump and reset 2016-12-11 10:01:05 -05:00
nft_ct.c netfilter: nft_ct: fix random validation errors for zone set support 2017-02-23 21:50:28 +01:00
nft_dup_netdev.c
nft_dynset.c netfilter: nf_tables: validate the name size when possible 2017-01-23 23:36:50 +01:00
nft_exthdr.c netfilter: nft_exthdr: add TCP option matching 2017-02-08 14:17:09 +01:00
nft_fib_inet.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_fib.c netfilter: nft_fib: convert htonl to ntohl properly 2016-12-06 21:42:20 +01:00
nft_fwd_netdev.c netfilter: add and use nf_fwd_netdev_egress 2016-12-06 21:48:22 +01:00
nft_hash.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
nft_immediate.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_limit.c netfilter: nft_limit: fix divided by zero panic 2016-10-04 08:59:03 +02:00
nft_log.c netfilter: nft_log: restrict the log prefix length to 127 2017-01-24 21:46:29 +01:00
nft_lookup.c netfilter: nf_tables: validate the name size when possible 2017-01-23 23:36:50 +01:00
nft_masq.c netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions 2016-12-04 21:17:16 +01:00
nft_meta.c netfilter: nft_meta: deal with PACKET_LOOPBACK in netdev family 2017-01-18 20:32:43 +01:00
nft_nat.c netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions 2016-12-04 21:17:16 +01:00
nft_numgen.c netfilter: nft_numgen: start round robin from zero 2016-10-26 16:35:16 +02:00
nft_objref.c netfilter: nf_tables: validate the name size when possible 2017-01-23 23:36:50 +01:00
nft_payload.c netfilter: nft_payload: mangle ckecksum if NFT_PAYLOAD_L4CSUM_PSEUDOHDR is set 2016-12-14 23:39:11 +01:00
nft_queue.c netfilter: nft_queue: use raw_smp_processor_id() 2016-12-14 23:39:01 +01:00
nft_quota.c netfilter: nft_quota: reset quota after dump 2016-12-14 23:38:51 +01:00
nft_range.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
nft_redir.c netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions 2016-12-04 21:17:16 +01:00
nft_reject_inet.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_reject.c
nft_rt.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_set_bitmap.c netfilter: nft_set_bitmap: incorrect bitmap size 2017-02-26 21:00:19 +01:00
nft_set_hash.c netfilter: nf_tables: honor NFT_SET_OBJECT in set backend selection 2017-02-12 14:45:14 +01:00
nft_set_rbtree.c netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups 2017-03-03 13:48:32 +01:00
x_tables.c xtables: use match, target and data copy_to_user helpers in compat 2017-01-09 17:24:55 +01:00
xt_addrtype.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_AUDIT.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_bpf.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_cgroup.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_CHECKSUM.c
xt_CLASSIFY.c
xt_cluster.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_comment.c
xt_connbytes.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_connlabel.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_connlimit.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_connmark.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_CONNSECMARK.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_conntrack.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_cpu.c
xt_CT.c netfilter: merge ctinfo into nfct pointer storage area 2017-02-02 14:31:56 +01:00
xt_dccp.c
xt_devgroup.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_dscp.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_DSCP.c
xt_ecn.c
xt_esp.c
xt_hashlimit.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2017-02-23 10:59:15 -05:00
xt_helper.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_hl.c
xt_HL.c
xt_HMARK.c
xt_IDLETIMER.c
xt_ipcomp.c netfilter: xt_ipcomp: add "ip[6]t_ipcomp" module alias name 2016-10-17 17:38:19 +02:00
xt_iprange.c
xt_ipvs.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_l2tp.c
xt_LED.c
xt_length.c
xt_limit.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_LOG.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_mac.c
xt_mark.c
xt_multiport.c netfilter: xt_multiport: Fix wrong unmatch result with multiple ports 2016-12-06 21:48:20 +01:00
xt_nat.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
xt_NETMAP.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
xt_nfacct.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_NFLOG.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_NFQUEUE.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_osf.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_owner.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_physdev.c
xt_pkttype.c netfilter: pkttype: unnecessary to check ipv6 multicast address 2017-01-18 20:32:43 +01:00
xt_policy.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_quota.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_rateest.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_RATEEST.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_realm.c
xt_recent.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
xt_REDIRECT.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
xt_repldata.h
xt_sctp.c
xt_SECMARK.c
xt_set.c netfilter: ipset: Improve skbinfo get/init helpers 2016-11-10 13:28:42 +01:00
xt_socket.c netfilter: defrag: only register defrag functionality if needed 2016-12-06 21:42:00 +01:00
xt_state.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_statistic.c
xt_string.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_tcpmss.c
xt_TCPMSS.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_TCPOPTSTRIP.c
xt_tcpudp.c
xt_TEE.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_time.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
xt_TPROXY.c netfilter: defrag: only register defrag functionality if needed 2016-12-06 21:42:00 +01:00
xt_TRACE.c
xt_u32.c