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Julian Anastasov 88c43b469d ipvs: fix rtnl_lock lockups caused by start_sync_thread 
commit 5c64576a77 upstream.

syzkaller reports for wrong rtnl_lock usage in sync code [1] and [2]

We have 2 problems in start_sync_thread if error path is
taken, eg. on memory allocation error or failure to configure
sockets for mcast group or addr/port binding:

1. recursive locking: holding rtnl_lock while calling sock_release
which in turn calls again rtnl_lock in ip_mc_drop_socket to leave
the mcast group, as noticed by Florian Westphal. Additionally,
sock_release can not be called while holding sync_mutex (ABBA
deadlock).

2. task hung: holding rtnl_lock while calling kthread_stop to
stop the running kthreads. As the kthreads do the same to leave
the mcast group (sock_release -> ip_mc_drop_socket -> rtnl_lock)
they hang.

Fix the problems by calling rtnl_unlock early in the error path,
now sock_release is called after unlocking both mutexes.

Problem 3 (task hung reported by syzkaller [2]) is variant of
problem 2: use _trylock to prevent one user to call rtnl_lock and
then while waiting for sync_mutex to block kthreads that execute
sock_release when they are stopped by stop_sync_thread.

[1]
IPVS: stopping backup sync thread 4500 ...
WARNING: possible recursive locking detected
4.16.0-rc7+ #3 Not tainted
--------------------------------------------
syzkaller688027/4497 is trying to acquire lock:
  (rtnl_mutex){+.+.}, at: [<00000000bb14d7fb>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74

but task is already holding lock:
IPVS: stopping backup sync thread 4495 ...
  (rtnl_mutex){+.+.}, at: [<00000000bb14d7fb>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74

other info that might help us debug this:
  Possible unsafe locking scenario:

        CPU0
        ----
   lock(rtnl_mutex);
   lock(rtnl_mutex);

  *** DEADLOCK ***

  May be due to missing lock nesting notation

2 locks held by syzkaller688027/4497:
  #0:  (rtnl_mutex){+.+.}, at: [<00000000bb14d7fb>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74
  #1:  (ipvs->sync_mutex){+.+.}, at: [<00000000703f78e3>]
do_ip_vs_set_ctl+0x10f8/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2388

stack backtrace:
CPU: 1 PID: 4497 Comm: syzkaller688027 Not tainted 4.16.0-rc7+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:17 [inline]
  dump_stack+0x194/0x24d lib/dump_stack.c:53
  print_deadlock_bug kernel/locking/lockdep.c:1761 [inline]
  check_deadlock kernel/locking/lockdep.c:1805 [inline]
  validate_chain kernel/locking/lockdep.c:2401 [inline]
  __lock_acquire+0xe8f/0x3e00 kernel/locking/lockdep.c:3431
  lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
  __mutex_lock_common kernel/locking/mutex.c:756 [inline]
  __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893
  mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
  rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74
  ip_mc_drop_socket+0x88/0x230 net/ipv4/igmp.c:2643
  inet_release+0x4e/0x1c0 net/ipv4/af_inet.c:413
  sock_release+0x8d/0x1e0 net/socket.c:595
  start_sync_thread+0x2213/0x2b70 net/netfilter/ipvs/ip_vs_sync.c:1924
  do_ip_vs_set_ctl+0x1139/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2389
  nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
  nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
  ip_setsockopt+0x97/0xa0 net/ipv4/ip_sockglue.c:1261
  udp_setsockopt+0x45/0x80 net/ipv4/udp.c:2406
  sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2975
  SYSC_setsockopt net/socket.c:1849 [inline]
  SyS_setsockopt+0x189/0x360 net/socket.c:1828
  do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
  entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x446a69
RSP: 002b:00007fa1c3a64da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446a69
RDX: 000000000000048b RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00000000006e29fc R08: 0000000000000018 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 00000000006e29f8
R13: 00676e697279656b R14: 00007fa1c3a659c0 R15: 00000000006e2b60

[2]
IPVS: sync thread started: state = BACKUP, mcast_ifn = syz_tun, syncid = 4,
id = 0
IPVS: stopping backup sync thread 25415 ...
INFO: task syz-executor7:25421 blocked for more than 120 seconds.
       Not tainted 4.16.0-rc6+ #284
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor7   D23688 25421   4408 0x00000004
Call Trace:
  context_switch kernel/sched/core.c:2862 [inline]
  __schedule+0x8fb/0x1ec0 kernel/sched/core.c:3440
  schedule+0xf5/0x430 kernel/sched/core.c:3499
  schedule_timeout+0x1a3/0x230 kernel/time/timer.c:1777
  do_wait_for_common kernel/sched/completion.c:86 [inline]
  __wait_for_common kernel/sched/completion.c:107 [inline]
  wait_for_common kernel/sched/completion.c:118 [inline]
  wait_for_completion+0x415/0x770 kernel/sched/completion.c:139
  kthread_stop+0x14a/0x7a0 kernel/kthread.c:530
  stop_sync_thread+0x3d9/0x740 net/netfilter/ipvs/ip_vs_sync.c:1996
  do_ip_vs_set_ctl+0x2b1/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2394
  nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
  nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115
  ip_setsockopt+0x97/0xa0 net/ipv4/ip_sockglue.c:1253
  sctp_setsockopt+0x2ca/0x63e0 net/sctp/socket.c:4154
  sock_common_setsockopt+0x95/0xd0 net/core/sock.c:3039
  SYSC_setsockopt net/socket.c:1850 [inline]
  SyS_setsockopt+0x189/0x360 net/socket.c:1829
  do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
  entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x454889
RSP: 002b:00007fc927626c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fc9276276d4 RCX: 0000000000454889
RDX: 000000000000048c RSI: 0000000000000000 RDI: 0000000000000017
RBP: 000000000072bf58 R08: 0000000000000018 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000051c R14: 00000000006f9b40 R15: 0000000000000001

Showing all locks held in the system:
2 locks held by khungtaskd/868:
  #0:  (rcu_read_lock){....}, at: [<00000000a1a8f002>]
check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline]
  #0:  (rcu_read_lock){....}, at: [<00000000a1a8f002>] watchdog+0x1c5/0xd60
kernel/hung_task.c:249
  #1:  (tasklist_lock){.+.+}, at: [<0000000037c2f8f9>]
debug_show_all_locks+0xd3/0x3d0 kernel/locking/lockdep.c:4470
1 lock held by rsyslogd/4247:
  #0:  (&f->f_pos_lock){+.+.}, at: [<000000000d8d6983>]
__fdget_pos+0x12b/0x190 fs/file.c:765
2 locks held by getty/4338:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4339:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4340:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4341:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4342:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4343:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4344:
  #0:  (&tty->ldisc_sem){++++}, at: [<00000000bee98654>]
ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<00000000c1d180aa>]
n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
3 locks held by kworker/0:5/6494:
  #0:  ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at:
[<00000000a062b18e>] work_static include/linux/workqueue.h:198 [inline]
  #0:  ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at:
[<00000000a062b18e>] set_work_data kernel/workqueue.c:619 [inline]
  #0:  ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at:
[<00000000a062b18e>] set_work_pool_and_clear_pending kernel/workqueue.c:646
[inline]
  #0:  ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at:
[<00000000a062b18e>] process_one_work+0xb12/0x1bb0 kernel/workqueue.c:2084
  #1:  ((addr_chk_work).work){+.+.}, at: [<00000000278427d5>]
process_one_work+0xb89/0x1bb0 kernel/workqueue.c:2088
  #2:  (rtnl_mutex){+.+.}, at: [<00000000066e35ac>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74
1 lock held by syz-executor7/25421:
  #0:  (ipvs->sync_mutex){+.+.}, at: [<00000000d414a689>]
do_ip_vs_set_ctl+0x277/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2393
2 locks held by syz-executor7/25427:
  #0:  (rtnl_mutex){+.+.}, at: [<00000000066e35ac>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74
  #1:  (ipvs->sync_mutex){+.+.}, at: [<00000000e6d48489>]
do_ip_vs_set_ctl+0x10f8/0x1cc0 net/netfilter/ipvs/ip_vs_ctl.c:2388
1 lock held by syz-executor7/25435:
  #0:  (rtnl_mutex){+.+.}, at: [<00000000066e35ac>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74
1 lock held by ipvs-b:2:0/25415:
  #0:  (rtnl_mutex){+.+.}, at: [<00000000066e35ac>] rtnl_lock+0x17/0x20
net/core/rtnetlink.c:74

Reported-and-tested-by: syzbot+a46d6abf9d56b1365a72@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+5fe074c01b2032ce9618@syzkaller.appspotmail.com
Fixes: e0b26cc997 ("ipvs: call rtnl_lock early")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Zubin Mithra <zsm@chromium.org>
Cc: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-16 10:10:22 +02:00
..
ipset netfilter: ipset: Missing nfnl_lock()/nfnl_unlock() is added to ip_set_net_exit() 2018-04-19 08:56:15 +02:00
ipvs ipvs: fix rtnl_lock lockups caused by start_sync_thread 2018-05-16 10:10:22 +02:00
core.c netfilter: core: remove erroneous warn_on 2017-09-08 18:55:52 +02:00
Kconfig netfilter: nf_tables: add fib expression to the netdev family 2017-07-31 19:01:40 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_conntrack_acct.c netfilter: conntrack: mark extension structs as const 2017-04-26 09:30:22 +02:00
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: Remove duplicated rcu_read_lock. 2017-07-24 13:24:46 +02:00
nf_conntrack_core.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
nf_conntrack_ecache.c netfilter: conntrack: mark extension structs as const 2017-04-26 09:30:22 +02:00
nf_conntrack_expect.c net: Replace NF_CT_ASSERT() with WARN_ON(). 2017-09-04 13:25:19 +02:00
nf_conntrack_extend.c net: Replace NF_CT_ASSERT() with WARN_ON(). 2017-09-04 13:25:19 +02:00
nf_conntrack_ftp.c netfilter: helpers: remove data_len usage for inkernel helpers 2017-04-19 17:55:17 +02:00
nf_conntrack_h323_asn1.c netfilter: nf_conntrack_h323: fix off-by-one in DecodeQ931 2016-07-11 12:32:45 +02:00
nf_conntrack_h323_main.c netfilter: use nf_conntrack_helpers_register when possible 2017-06-19 19:13:21 +02:00
nf_conntrack_h323_types.c
nf_conntrack_helper.c netfilter: expect: add and use nf_ct_expect_iterate helpers 2017-07-31 19:09:38 +02:00
nf_conntrack_irc.c netfilter: helpers: remove data_len usage for inkernel helpers 2017-04-19 17:55:17 +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 netfilter: helper: add build-time asserts for helper data size 2017-04-19 17:55:16 +02:00
nf_conntrack_netlink.c netfilter: conntrack: make protocol tracker pointers const 2017-08-24 18:52:33 +02:00
nf_conntrack_pptp.c netfilter: Remove duplicated rcu_read_lock. 2017-07-24 13:24:46 +02:00
nf_conntrack_proto.c netfilter: conntrack: make protocol tracker pointers const 2017-08-24 18:52:33 +02:00
nf_conntrack_proto_dccp.c netfilter: remove unused hooknum arg from packet functions 2017-09-04 13:25:18 +02:00
nf_conntrack_proto_generic.c netfilter: remove unused hooknum arg from packet functions 2017-09-04 13:25:18 +02:00
nf_conntrack_proto_gre.c netfilter: remove unused hooknum arg from packet functions 2017-09-04 13:25:18 +02:00
nf_conntrack_proto_sctp.c netfilter: remove unused hooknum arg from packet functions 2017-09-04 13:25:18 +02:00
nf_conntrack_proto_tcp.c netfilter: remove unused hooknum arg from packet functions 2017-09-04 13:25:18 +02:00
nf_conntrack_proto_udp.c netfilter: remove unused hooknum arg from packet functions 2017-09-04 13:25:18 +02:00
nf_conntrack_sane.c netfilter: helpers: remove data_len usage for inkernel helpers 2017-04-19 17:55:17 +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 netfilter: Remove duplicated rcu_read_lock. 2017-07-24 13:24:46 +02:00
nf_conntrack_snmp.c
nf_conntrack_standalone.c net: Replace NF_CT_ASSERT() with WARN_ON(). 2017-09-04 13:25:19 +02:00
nf_conntrack_tftp.c netfilter: helpers: remove data_len usage for inkernel helpers 2017-04-19 17:55:17 +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: conntrack: mark extension structs as const 2017-04-26 09:30:22 +02:00
nf_dup_netdev.c netfilter: dup: resolve warnings about missing prototypes 2017-05-29 11:32:36 +02:00
nf_internals.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nf_log.c netfilter: nf_log: don't call synchronize_rcu in nf_log_unset 2017-05-01 11:19:07 +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 netfilter: nf_log: do not assume ethernet header in netdev family 2016-12-04 20:45:33 +01:00
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 netfilter: nat: Do not use ARRAY_SIZE() on spinlocks to fix zero div 2017-09-18 17:33:23 +02:00
nf_nat_ftp.c
nf_nat_helper.c netfilter: nat: nf_nat_mangle_{udp,tcp}_packet returns boolean 2017-04-06 22:01:38 +02:00
nf_nat_irc.c netfilter: nat: nf_nat_mangle_{udp,tcp}_packet returns boolean 2017-04-06 22:01:38 +02:00
nf_nat_proto_common.c netfilter: nat: cope with negative port range 2018-03-15 10:54:23 +01:00
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 sctp: remove the typedef sctp_sctphdr_t 2017-07-01 09:08:41 -07:00
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 net: Replace NF_CT_ASSERT() with WARN_ON(). 2017-09-04 13:25:19 +02:00
nf_nat_sip.c
nf_nat_tftp.c
nf_queue.c netfilter: convert hook list to an array 2017-08-28 17:44:00 +02:00
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 tcp: switch TCP TS option (RFC 7323) to 1ms clock 2017-05-17 16:06:01 -04:00
nf_tables_api.c netfilter: nf_tables: fix potential NULL-ptr deref in nf_tables_dump_obj_done() 2018-03-03 10:24:30 +01:00
nf_tables_core.c netfilter: constify nf_loginfo structures 2017-08-02 14:25:59 +02:00
nf_tables_inet.c netfilter: Add the missed return value check of nft_register_chain_type 2016-09-12 19:54:45 +02:00
nf_tables_netdev.c netfilter: nf_tables: add nft_is_base_chain() helper 2017-04-06 18:32:04 +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.c netfilter: nfnetlink: Improve input length sanitization in nfnetlink_rcv 2017-07-17 13:27:46 +02:00
nfnetlink_acct.c netfilter: nfnetlink: extended ACK reporting 2017-06-19 19:38:24 +02:00
nfnetlink_cthelper.c netfilter: nfnetlink_cthelper: Add missing permission checks 2018-01-31 14:03:41 +01:00
nfnetlink_cttimeout.c netfilter: conntrack: make protocol tracker pointers const 2017-08-24 18:52:33 +02:00
nfnetlink_log.c netfilter: constify nf_loginfo structures 2017-08-02 14:25:59 +02:00
nfnetlink_queue.c netfilter: nfnetlink_queue: don't queue dying conntracks to userspace 2017-07-31 19:09:39 +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_cmp.c netfilter: nf_tables: revisit chain/object refcounting from elements 2017-05-15 12:51:41 +02:00
nft_compat.c netfilter: nft_compat: check extension hook mask only if set 2017-07-19 11:53:30 +02:00
nft_counter.c netfilter: nf_tables: add select_ops for stateful objects 2017-09-04 13:25:09 +02:00
nft_ct.c netfilter: nf_tables: add select_ops for stateful objects 2017-09-04 13:25:09 +02:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2017-05-03 10:11:26 -04:00
nft_exthdr.c netfilter: fix a few (harmless) sparse warnings 2017-08-28 17:42:56 +02:00
nft_fib.c netfilter: nft_fib: Support existence check 2017-03-13 13:45:36 +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_netdev.c netfilter: nf_tables: add fib expression to the netdev family 2017-07-31 19:01:40 +02:00
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/pablo/nf-next 2017-05-01 10:47:53 -04:00
nft_immediate.c netfilter: nf_tables: revisit chain/object refcounting from elements 2017-05-15 12:51:41 +02:00
nft_limit.c netfilter: nft_limit: add stateful object type 2017-09-04 13:25:16 +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: add nft_set_lookup() 2017-03-06 18:23:23 +01:00
nft_masq.c netfilter: nf_tables: validate the expr explicitly after init successfully 2017-03-06 18:22:12 +01:00
nft_meta.c netfilter: Remove exceptional & on function name 2017-04-07 18:24:47 +02:00
nft_nat.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-23 16:41:27 -07:00
nft_numgen.c netfilter: Remove exceptional & on function name 2017-04-07 18:24:47 +02:00
nft_objref.c netfilter: nf_tables: add select_ops for stateful objects 2017-09-04 13:25:09 +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: 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_reject_inet.c netfilter: nf_tables: validate the expr explicitly after init successfully 2017-03-06 18:22:12 +01:00
nft_rt.c netfilter: rt: account for tcp header size too 2017-08-28 18:14:30 +02:00
nft_set_bitmap.c netfilter: nf_tables: pass set description to ->privsize 2017-05-29 12:46:18 +02:00
nft_set_hash.c netfilter: nft_set_hash: disable fast_ops for 2-len keys 2017-10-25 14:46:44 +02:00
nft_set_rbtree.c netfilter: nft_set_rbtree: use seqcount to avoid lock in most cases 2017-07-31 20:41:59 +02:00
x_tables.c netfilter: x_tables: limit allocation requests for blob rule heads 2018-04-26 11:02:21 +02:00
xt_addrtype.c netfilter: Remove duplicated rcu_read_lock. 2017-07-24 13:24:46 +02:00
xt_AUDIT.c audit: normalize NETFILTER_PKT 2017-05-02 10:16:04 -04:00
xt_bpf.c netfilter: xt_bpf: add overflow checks 2018-02-25 11:08:01 +01:00
xt_cgroup.c netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1() 2018-02-25 11:07:50 +01:00
xt_CHECKSUM.c
xt_CLASSIFY.c
xt_cluster.c netfilter: remove nf_ct_is_untracked 2017-04-15 11:51:33 +02:00
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: remove nf_ct_is_untracked 2017-04-15 11:51:33 +02:00
xt_connlimit.c netfilter: connlimit: merge root4 and root6. 2017-08-19 13:07:53 +02:00
xt_connmark.c netfilter: remove nf_ct_is_untracked 2017-04-15 11:51:33 +02:00
xt_CONNSECMARK.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_conntrack.c netfilter: kill the fake untracked conntrack objects 2017-04-15 11:47:57 +02:00
xt_cpu.c
xt_CT.c netfilter: conntrack: make protocol tracker pointers const 2017-08-24 18:52:33 +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
xt_dscp.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_ecn.c
xt_esp.c
xt_hashlimit.c netfilter: x_tables: add and use xt_check_proc_name 2018-04-08 14:26:29 +02:00
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 netfilter: remove nf_ct_is_untracked 2017-04-15 11:51:33 +02:00
xt_IDLETIMER.c netfilter: x_tables: fix pointer leaks to userspace 2018-04-26 11:02:13 +02:00
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: remove nf_ct_is_untracked 2017-04-15 11:51:33 +02:00
xt_l2tp.c
xt_LED.c netfilter: x_tables: fix pointer leaks to userspace 2018-04-26 11:02:13 +02:00
xt_length.c
xt_limit.c netfilter: x_tables: fix pointer leaks to userspace 2018-04-26 11:02:13 +02:00
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 net: Replace NF_CT_ASSERT() with WARN_ON(). 2017-09-04 13:25:19 +02:00
xt_NETMAP.c net: Replace NF_CT_ASSERT() with WARN_ON(). 2017-09-04 13:25:19 +02:00
xt_nfacct.c netfilter: x_tables: fix pointer leaks to userspace 2018-04-26 11:02:13 +02:00
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: xt_osf: Add missing permission checks 2018-01-31 14:03:41 +01:00
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: physdev: add missed blank 2016-08-12 00:42:14 +02:00
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: 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 netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert 2018-02-25 11:07:50 +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 netfilter: x_tables: add and use xt_check_proc_name 2018-04-08 14:26:29 +02:00
xt_REDIRECT.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
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
xt_set.c netfilter: ipset: Improve skbinfo get/init helpers 2016-11-10 13:28:42 +01:00
xt_socket.c netfilter: xt_socket: Restore mark from full sockets only 2017-09-26 20:04:34 +02:00
xt_state.c netfilter: kill the fake untracked conntrack objects 2017-04-15 11:47:57 +02:00
xt_statistic.c netfilter: x_tables: fix pointer leaks to userspace 2018-04-26 11:02:13 +02:00
xt_string.c xtables: extend matches and targets with .usersize 2017-01-09 17:24:55 +01:00
xt_TCPMSS.c netfilter: Remove duplicated rcu_read_lock. 2017-07-24 13:24:46 +02:00
xt_tcpmss.c
xt_TCPOPTSTRIP.c
xt_tcpudp.c netfilter: Convert FWINV<[foo]> macros and uses to NF_INVF 2016-07-03 10:55:07 +02:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-09-03 17:08:42 -07:00
xt_TRACE.c netfilter: xt_TRACE: add explicitly nf_logger_find_get call 2016-06-23 13:26:49 +02:00
xt_u32.c