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linux/net/netfilter
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Vasily Khoruzhick 5d64390cff netfilter: conntrack: fix calculation of next bucket number in early_drop 
commit f393808dc6 upstream.

If there's no entry to drop in bucket that corresponds to the hash,
early_drop() should look for it in other buckets. But since it increments
hash instead of bucket number, it actually looks in the same bucket 8
times: hsize is 16k by default (14 bits) and hash is 32-bit value, so
reciprocal_scale(hash, hsize) returns the same value for hash..hash+7 in
most cases.

Fix it by increasing bucket number instead of hash and rename _hash
to bucket to avoid future confusion.

Fixes: 3e86638e9a ("netfilter: conntrack: consider ct netns in early_drop logic")
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Vasily Khoruzhick <vasilykh@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-21 09:22:05 +01:00
..
ipset
netfilter: ipset: forbid family for hash:mac sets
2018-06-06 14:01:00 +02:00
ipvs
ipvs: fix race between ip_vs_conn_new() and ip_vs_del_dest()
2018-09-15 09:46:48 +02:00
core.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-05-23 16:37:11 -04:00
Kconfig
netfilter: xt_checksum: ignore gso skbs
2018-10-10 08:55:58 +02:00
Makefile
netfilter: nf_tables: place all set backends in one single module
2018-07-06 19:31:53 +02:00
nf_conncount.c
netfilter: nf_conncount: fix garbage collection confirm race
2018-06-26 18:28:57 +02:00
nf_conntrack_acct.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_conntrack_amanda.c
netfilter: use nf_conntrack_helpers_register when possible
2017-06-19 19:13:21 +02:00
nf_conntrack_broadcast.c
netfilter: nf_conntrack_broadcast: remove useless parameter
2018-03-05 23:15:43 +01:00
nf_conntrack_core.c
netfilter: conntrack: fix calculation of next bucket number in early_drop
2018-11-21 09:22:05 +01:00
nf_conntrack_ecache.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_conntrack_expect.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_conntrack_extend.c
netfilter: conntrack: include kmemleak.h for kmemleak_not_leak()
2018-04-17 10:59:43 +02:00
nf_conntrack_ftp.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_h323_asn1.c
netfilter: nf_conntrack_h323: Remove unwanted comments.
2018-01-08 18:01:05 +01:00
nf_conntrack_h323_main.c
netfilter: move route indirection to struct nf_ipv6_ops
2018-01-08 18:01:26 +01:00
nf_conntrack_h323_types.c
…
nf_conntrack_helper.c
netfilter: nf_ct_helper: Fix possible panic after nf_conntrack_helper_unregister
2018-06-18 14:15:12 +02:00
nf_conntrack_irc.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_l3proto_generic.c
netfilter: conntrack: place print_tuple in procfs part
2017-08-24 18:52:32 +02:00
nf_conntrack_labels.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_netbios_ns.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-03-30 11:41:18 -04:00
nf_conntrack_netlink.c
netfilter: fix memory leaks on netlink_dump_start error
2018-09-15 09:46:49 +02:00
nf_conntrack_pptp.c
netfilter: Remove duplicated rcu_read_lock.
2017-07-24 13:24:46 +02:00
nf_conntrack_proto_dccp.c
netfilter: conntrack: dccp: treat SYNC/SYNCACK as invalid if no prior state
2018-07-20 15:31:44 +02:00
nf_conntrack_proto_generic.c
netfilter: conntrack: timeouts can be const
2018-01-08 18:01:02 +01:00
nf_conntrack_proto_gre.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nf_conntrack_proto_sctp.c
netfilter: conntrack: timeouts can be const
2018-01-08 18:01:02 +01:00
nf_conntrack_proto_tcp.c
netfilter: conntrack: get rid of double sizeof
2018-11-04 14:51:40 +01:00
nf_conntrack_proto_udp.c
netfilter: conntrack: timeouts can be const
2018-01-08 18:01:02 +01:00
nf_conntrack_proto.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
nf_conntrack_sane.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_seqadj.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_sip.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-05-06 21:51:37 -04:00
nf_conntrack_snmp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-03-30 11:41:18 -04:00
nf_conntrack_standalone.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_conntrack_tftp.c
netfilter: add __exit mark to helper modules
2018-04-24 10:29:14 +02:00
nf_conntrack_timeout.c
netfilter: conntrack: mark extension structs as const
2017-04-26 09:30:22 +02:00
nf_conntrack_timestamp.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_dup_netdev.c
netfilter: dup: resolve warnings about missing prototypes
2017-05-29 11:32:36 +02:00
nf_flow_table_core.c
netfilter: nf_flow_table: fix offloading connections with SNAT+DNAT
2018-04-24 10:29:07 +02:00
nf_flow_table_inet.c
netfilter: nf_flow_table: move init code to nf_flow_table_core.c
2018-04-24 10:28:45 +02:00
nf_flow_table_ip.c
netfilter: nf_flow_table: attach dst to skbs
2018-06-01 09:47:36 +02:00
nf_internals.h
netfilter: core: export raw versions of add/delete hook functions
2018-05-23 09:14:05 +02:00
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
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nf_log.c
netfilter: nf_log: don't hold nf_log_mutex during user access
2018-06-26 16:48:40 +02:00
nf_nat_amanda.c
netfilter: nat: nf_nat_mangle_{udp,tcp}_packet returns boolean
2017-04-06 22:01:38 +02:00
nf_nat_core.c
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
nf_nat_ftp.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_nat_helper.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_irc.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
nf_nat_proto_common.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_dccp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_sctp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_tcp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_udp.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_proto_unknown.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_redirect.c
netfilter: nat: merge nf_nat_redirect into nf_nat
2018-05-29 00:25:40 +02:00
nf_nat_sip.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nf_nat_tftp.c
netfilter: nf_ct_helper: better logging for dropped packets
2013-02-19 02:48:05 +01:00
nf_osf.c
netfilter: extract Passive OS fingerprint infrastructure from xt_osf
2018-05-07 00:02:11 +02:00
nf_queue.c
netfilter: remove duplicated include
2018-01-10 15:32:15 +01:00
nf_sockopt.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nf_synproxy_core.c
proc: introduce proc_create_net{,_data}
2018-05-16 07:24:30 +02:00
nf_tables_api.c
netfilter: nf_tables: release chain in flushing set
2018-10-10 08:55:59 +02:00
nf_tables_core.c
netfilter: nf_tables: use WARN_ON_ONCE instead of BUG_ON in nft_do_chain()
2018-06-12 19:30:11 +02:00
nf_tables_set_core.c
netfilter: nf_tables: place all set backends in one single module
2018-07-06 19:31:53 +02:00
nf_tables_trace.c
netfilter: nf_tables: Allow chain name of up to 255 chars
2017-07-31 20:41:57 +02:00
nfnetlink_acct.c
netfilter: fix memory leaks on netlink_dump_start error
2018-09-15 09:46:49 +02:00
nfnetlink_cthelper.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
nfnetlink_cttimeout.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
nfnetlink_log.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-06-06 18:39:49 -07:00
nfnetlink_queue.c
netfilter: nfnetlink_queue: Solve the NFQUEUE/conntrack clash for NF_REPEAT
2018-10-10 08:56:02 +02:00
nfnetlink.c
netfilter: nf_tables: fix module unload race
2018-06-12 19:28:18 +02:00
nft_bitwise.c
netfilter: nf_tables: revisit chain/object refcounting from elements
2017-05-15 12:51:41 +02:00
nft_byteorder.c
netfilter: nf_tables: simplify the basic expressions' init routine
2016-11-09 23:42:23 +01:00
nft_chain_filter.c
netfilter: nf_tables: close race between netns exit and rmmod
2018-06-12 19:28:18 +02:00
nft_cmp.c
netfilter: mark expected switch fall-throughs
2018-01-08 18:01:01 +01:00
nft_compat.c
netfilter: nft_compat: explicitly reject ERROR and standard target
2018-07-09 16:06:19 +02:00
nft_connlimit.c
netfilter: nf_conncount: Fix garbage collection with zones
2018-06-12 20:07:07 +02:00
nft_counter.c
netfilter: nf_tables: add destroy_clone expression
2018-06-03 00:02:11 +02:00
nft_ct.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-03 09:31:58 -04:00
nft_dup_netdev.c
netfilter: nf_tables: add packet duplication to the netdev family
2016-01-03 21:04:23 +01:00
nft_dynset.c
netfilter: nft_dynset: do not reject set updates with NFT_SET_EVAL
2018-06-12 19:12:48 +02:00
nft_exthdr.c
netfilter: nf_tables: merge exthdr expression into nft core
2018-04-27 00:00:56 +02:00
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_netdev.c
netfilter: nf_tables: add fib expression to the netdev family
2017-07-31 19:01:40 +02:00
nft_fib.c
netfilter: nft_fib: Support existence check
2017-03-13 13:45:36 +01:00
nft_flow_offload.c
netfilter: nf_tables: simplify lookup functions
2018-04-24 10:29:09 +02:00
nft_fwd_netdev.c
netfilter: nft_fwd_netdev: allow to forward packets via neighbour layer
2018-06-01 10:35:47 +02:00
nft_hash.c
netfilter: fix ptr_ret.cocci warnings
2018-06-01 09:38:40 +02:00
nft_immediate.c
netfilter: nf_tables: fix jumpstack depth validation
2018-07-17 20:48:24 +02:00
nft_limit.c
netfilter: nft_limit: fix packet ratelimiting
2018-05-23 09:50:28 +02:00
nft_log.c
netfilter: nf_tables: add NFT_LOGLEVEL_* enumeration and use it
2018-06-07 16:14:00 -04:00
nft_lookup.c
netfilter: nf_tables: fix jumpstack depth validation
2018-07-17 20:48:24 +02:00
nft_masq.c
netfilter: nf_tables: add single table list for all families
2018-01-10 15:32:08 +01:00
nft_meta.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-06-03 09:31:58 -04:00
nft_nat.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
nft_numgen.c
netfilter: fix ptr_ret.cocci warnings
2018-06-01 09:38:40 +02:00
nft_objref.c
netfilter: nf_tables: simplify lookup functions
2018-04-24 10:29:09 +02:00
nft_payload.c
netfilter: fix a few (harmless) sparse warnings
2017-08-28 17:42:56 +02:00
nft_queue.c
netfilter: Remove exceptional & on function name
2017-04-07 18:24:47 +02:00
nft_quota.c
netfilter: nf_tables: add select_ops for stateful objects
2017-09-04 13:25:09 +02:00
nft_range.c
netfilter: nf_tables: revisit chain/object refcounting from elements
2017-05-15 12:51:41 +02:00
nft_redir.c
netfilter: nf_tables: add single table list for all families
2018-01-10 15:32:08 +01:00
nft_reject_inet.c
netfilter: nf_tables: validate the expr explicitly after init successfully
2017-03-06 18:22:12 +01:00
nft_reject.c
netfilter: nf_tables: validate the expr explicitly after init successfully
2017-03-06 18:22:12 +01:00
nft_rt.c
netfilter: nf_tables: merge rt expression into nft core
2018-04-27 00:00:55 +02:00
nft_set_bitmap.c
netfilter: nf_tables: place all set backends in one single module
2018-07-06 19:31:53 +02:00
nft_set_hash.c
netfilter: nft_set_hash: add rcu_barrier() in the nft_rhash_destroy()
2018-07-18 17:09:53 +02:00
nft_set_rbtree.c
netfilter: nft_set_rbtree: add missing rb_erase() in GC routine
2018-11-04 14:51:42 +01:00
nft_socket.c
netfilter: nft_socket: fix module autoload
2018-06-12 19:12:45 +02:00
utils.c
netfilter: move reroute indirection to struct nf_ipv6_ops
2018-01-08 18:10:53 +01:00
x_tables.c
netfilter: x_tables: do not fail xt_alloc_table_info too easilly
2018-09-15 09:46:49 +02:00
xt_addrtype.c
netfilter: x_tables: use pr ratelimiting in matches/targets
2018-02-14 21:05:37 +01:00
xt_AUDIT.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_bpf.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_cgroup.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_CHECKSUM.c
netfilter: xt_checksum: ignore gso skbs
2018-10-10 08:55:58 +02:00
xt_CLASSIFY.c
…
xt_cluster.c
netfilter: xt_cluster: add dependency on conntrack module
2018-10-10 08:55:58 +02:00
xt_comment.c
…
xt_connbytes.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_connlabel.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_connlimit.c
netfilter: Refactor nf_conncount
2018-03-20 13:27:17 +01:00
xt_connmark.c
netfilter: xt_connmark: fix list corruption on rmmod
2018-06-12 19:35:52 +02:00
xt_CONNSECMARK.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_conntrack.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_cpu.c
…
xt_CT.c
netfilter: xt_CT: Reject the non-null terminated string from user space
2018-06-01 10:14:51 +02:00
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: remove pr_info where possible
2018-02-14 21:05:33 +01:00
xt_DSCP.c
netfilter: x_tables: remove pr_info where possible
2018-02-14 21:05:33 +01:00
xt_ecn.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_esp.c
…
xt_hashlimit.c
netfilter: xt_hashlimit: use s->file instead of s->private
2018-10-10 08:56:02 +02:00
xt_helper.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_hl.c
…
xt_HL.c
netfilter: x_tables: remove pr_info where possible
2018-02-14 21:05:33 +01:00
xt_HMARK.c
netfilter: x_tables: use pr ratelimiting in matches/targets
2018-02-14 21:05:37 +01:00
xt_IDLETIMER.c
net: Use octal not symbolic permissions
2018-03-26 12:07:48 -04:00
xt_ipcomp.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_iprange.c
…
xt_ipvs.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_l2tp.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_LED.c
netfilter: x_tables: fix missing timer initialization in xt_LED
2018-02-14 21:05:39 +01:00
xt_length.c
…
xt_limit.c
netfilter: xt_limit: Spelling s/maxmum/maximum/
2018-03-05 23:15:50 +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
netfilter: Convert compare_ether_addr to ether_addr_equal
2012-05-09 20:49:18 -04:00
xt_mark.c
netfilter: xt_MARK: Add ARP support
2015-05-14 13:00:27 +02:00
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: xt_nat: fix DNAT target for shifted portmap ranges
2018-11-13 11:12:19 -08:00
xt_NETMAP.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
xt_nfacct.c
netfilter: nfnetlink_acct: remove useless parameter
2018-03-05 23:15:43 +01:00
xt_NFLOG.c
netfilter: xt_NFLOG: use nf_log_packet instead of nfulnl_log_packet.
2018-04-19 13:02:44 +02:00
xt_NFQUEUE.c
netfilter: xt_NFQUEUE: use pr ratelimiting
2018-02-14 21:05:35 +01:00
xt_osf.c
netfilter: extract Passive OS fingerprint infrastructure from xt_osf
2018-05-07 00:02:11 +02:00
xt_owner.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
xt_physdev.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
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: use pr ratelimiting in matches/targets
2018-02-14 21:05:37 +01:00
xt_quota.c
xtables: extend matches and targets with .usersize
2017-01-09 17:24:55 +01:00
xt_rateest.c
netfilter: make xt_rateest hash table per net
2018-03-05 23:15:44 +01:00
xt_RATEEST.c
netfilter: make xt_rateest hash table per net
2018-03-05 23:15:44 +01:00
xt_realm.c
…
xt_recent.c
treewide: Use struct_size() for kmalloc()-family
2018-06-06 11:15:43 -07:00
xt_REDIRECT.c
netfilter: add NAT support for shifted portmap ranges
2018-04-24 10:29:12 +02:00
xt_repldata.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xt_sctp.c
sctp: remove the typedef sctp_chunkhdr_t
2017-07-01 09:08:41 -07:00
xt_SECMARK.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_set.c
netfilter: ipset: Limit max timeout value
2018-06-06 14:00:54 +02:00
xt_socket.c
netfilter: Decrease code duplication regarding transparent socket option
2018-06-03 00:02:01 +02:00
xt_state.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_statistic.c
netfilter: x_tables: fix pointer leaks to userspace
2018-01-31 14:59:24 +01:00
xt_string.c
netfilter: ebtables: Add string filter
2018-03-30 11:04:12 +02:00
xt_tcpmss.c
…
xt_TCPMSS.c
netfilter: x_tables: use pr ratelimiting in all remaining spots
2018-02-14 21:05:38 +01:00
xt_TCPOPTSTRIP.c
net: Change pseudohdr argument of inet_proto_csum_replace* to be a bool
2015-08-17 21:33:06 -07:00
xt_tcpudp.c
netfilter: Convert FWINV<[foo]> macros and uses to NF_INVF
2016-07-03 10:55:07 +02:00
xt_TEE.c
netfilter: Rework xt_TEE netdevice notifier
2018-03-30 10:59:23 -04:00
xt_time.c
netfilter: Replace printk() with pr_*() and define pr_fmt()
2018-03-20 13:44:14 +01:00
xt_TPROXY.c
netfilter: nf_tproxy: fix possible non-linear access to transport header
2018-07-06 14:32:44 +02:00
xt_TRACE.c
netfilter: xt_TRACE: add explicitly nf_logger_find_get call
2016-06-23 13:26:49 +02:00
xt_u32.c
…