BUG: sleeping function called from invalid context at net/core/sock.c:2772
in_atomic(): 1, irqs_disabled(): 0, pid: 5357, name: kworker/u4:12
5 locks held by kworker/u4:12/5357:
 #0:  ((wq_completion)"%s""netns"){+.+.}, at: [<0000000098fbeb20>] process_one_work+0xaaf/0x1af0 kernel/workqueue.c:2084
 #1:  (net_cleanup_work){+.+.}, at: [<000000002a153c13>] process_one_work+0xb01/0x1af0 kernel/workqueue.c:2088
 #2:  (net_sem){++++}, at: [<00000000da6bd959>] cleanup_net+0x23f/0xd20 net/core/net_namespace.c:494
 #3:  (net_mutex){+.+.}, at: [<000000001a885fd0>] cleanup_net+0xa7d/0xd20 net/core/net_namespace.c:496
 #4:  (&(&srv->idr_lock)->rlock){+...}, at: [<00000000fa8bc7a8>] spin_lock_bh include/linux/spinlock.h:315 [inline]
 #4:  (&(&srv->idr_lock)->rlock){+...}, at: [<00000000fa8bc7a8>] tipc_topsrv_stop+0x231/0x610 net/tipc/topsrv.c:685
CPU: 1 PID: 5357 Comm: kworker/u4:12 Not tainted 4.16.0-rc1+ #232
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128
 __might_sleep+0x95/0x190 kernel/sched/core.c:6081
 lock_sock_nested+0x37/0x110 net/core/sock.c:2772
 lock_sock include/net/sock.h:1463 [inline]
 tipc_release+0x103/0xff0 net/tipc/socket.c:572
 sock_release+0x8d/0x1e0 net/socket.c:594
 tipc_topsrv_stop+0x3c0/0x610 net/tipc/topsrv.c:696
 tipc_exit_net+0x15/0x40 net/tipc/core.c:96
 ops_exit_list.isra.6+0xae/0x150 net/core/net_namespace.c:148
 cleanup_net+0x6ba/0xd20 net/core/net_namespace.c:529
 process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2113
 worker_thread+0x223/0x1990 kernel/workqueue.c:2247
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:429

======================================================
WARNING: possible circular locking dependency detected
4.16.0-rc1+ #232 Tainted: G        W       
------------------------------------------------------
kworker/u4:12/5357 is trying to acquire lock:
 (k-sk_lock-AF_TIPC){+.+.}, at: [<0000000098604bf0>] lock_sock include/net/sock.h:1463 [inline]
 (k-sk_lock-AF_TIPC){+.+.}, at: [<0000000098604bf0>] tipc_release+0x103/0xff0 net/tipc/socket.c:572

but task is already holding lock:
 (&(&srv->idr_lock)->rlock){+...}, at: [<00000000fa8bc7a8>] spin_lock_bh include/linux/spinlock.h:315 [inline]
 (&(&srv->idr_lock)->rlock){+...}, at: [<00000000fa8bc7a8>] tipc_topsrv_stop+0x231/0x610 net/tipc/topsrv.c:685

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&(&srv->idr_lock)->rlock){+...}:
       __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
       _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
       spin_lock_bh include/linux/spinlock.h:315 [inline]
       tipc_conn_lookup+0x1f/0x90 net/tipc/topsrv.c:225
       tipc_topsrv_queue_evt+0x225/0x6d0 net/tipc/topsrv.c:326
       tipc_sub_send_event+0x250/0x440 net/tipc/subscr.c:54
       tipc_sub_report_overlap+0x3f6/0x4f0 net/tipc/subscr.c:98
       tipc_nameseq_insert_publ net/tipc/name_table.c:329 [inline]
       tipc_nametbl_insert_publ+0xf1c/0x1850 net/tipc/name_table.c:489
       tipc_nametbl_publish+0x2aa/0x4f0 net/tipc/name_table.c:762
       tipc_sk_publish+0x1f5/0x4b0 net/tipc/socket.c:2600
       tipc_sk_join net/tipc/socket.c:2770 [inline]
       tipc_setsockopt+0x5fd/0xcf0 net/tipc/socket.c:2874
       SYSC_setsockopt net/socket.c:1850 [inline]
       SyS_setsockopt+0x189/0x360 net/socket.c:1829
       do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287
       entry_SYSCALL_64_after_hwframe+0x26/0x9b

-> #3 (&(&sub->lock)->rlock){+...}:
       __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
       _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144
       spin_lock include/linux/spinlock.h:310 [inline]
       tipc_sub_report_overlap+0x3ce/0x4f0 net/tipc/subscr.c:97
       tipc_nameseq_insert_publ net/tipc/name_table.c:329 [inline]
       tipc_nametbl_insert_publ+0xf1c/0x1850 net/tipc/name_table.c:489
       tipc_nametbl_publish+0x2aa/0x4f0 net/tipc/name_table.c:762
       tipc_sk_publish+0x1f5/0x4b0 net/tipc/socket.c:2600
       tipc_sk_join net/tipc/socket.c:2770 [inline]
       tipc_setsockopt+0x5fd/0xcf0 net/tipc/socket.c:2874
       SYSC_setsockopt net/socket.c:1850 [inline]
       SyS_setsockopt+0x189/0x360 net/socket.c:1829
       do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287
       entry_SYSCALL_64_after_hwframe+0x26/0x9b

-> #2 (&(&nseq->lock)->rlock){+...}:
       __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
       _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
       spin_lock_bh include/linux/spinlock.h:315 [inline]
       tipc_nametbl_insert_publ+0x2da/0x1850 net/tipc/name_table.c:488
       tipc_nametbl_publish+0x2aa/0x4f0 net/tipc/name_table.c:762
       tipc_sk_publish+0x1f5/0x4b0 net/tipc/socket.c:2600
       tipc_bind+0x1a9/0x2d0 net/tipc/socket.c:647
       kernel_bind+0x62/0x80 net/socket.c:3128
       tipc_topsrv_create_listener net/tipc/topsrv.c:531 [inline]
       tipc_topsrv_start+0x9ab/0x1010 net/tipc/topsrv.c:671
       tipc_init_net+0x3cc/0x570 net/tipc/core.c:74
       ops_init+0xec/0x500 net/core/net_namespace.c:124
       __register_pernet_operations net/core/net_namespace.c:926 [inline]
       register_pernet_operations+0x45e/0xa00 net/core/net_namespace.c:1000
       register_pernet_subsys+0x28/0x40 net/core/net_namespace.c:1046
       tipc_init+0x83/0x104 net/tipc/core.c:136
       do_one_initcall+0xad/0x357 init/main.c:832
       do_initcall_level init/main.c:898 [inline]
       do_initcalls init/main.c:906 [inline]
       do_basic_setup init/main.c:924 [inline]
       kernel_init_freeable+0x469/0x521 init/main.c:1072
       kernel_init+0x13/0x180 init/main.c:999
       ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:429

-> #1 (&(&tn->nametbl_lock)->rlock){+...}:
       __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
       _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
       spin_lock_bh include/linux/spinlock.h:315 [inline]
       tipc_nametbl_publish+0x1ff/0x4f0 net/tipc/name_table.c:754
       tipc_sk_publish+0x1f5/0x4b0 net/tipc/socket.c:2600
       tipc_bind+0x1a9/0x2d0 net/tipc/socket.c:647
       kernel_bind+0x62/0x80 net/socket.c:3128
       tipc_topsrv_create_listener net/tipc/topsrv.c:531 [inline]
       tipc_topsrv_start+0x9ab/0x1010 net/tipc/topsrv.c:671
       tipc_init_net+0x3cc/0x570 net/tipc/core.c:74
       ops_init+0xec/0x500 net/core/net_namespace.c:124
       __register_pernet_operations net/core/net_namespace.c:926 [inline]
       register_pernet_operations+0x45e/0xa00 net/core/net_namespace.c:1000
       register_pernet_subsys+0x28/0x40 net/core/net_namespace.c:1046
       tipc_init+0x83/0x104 net/tipc/core.c:136
       do_one_initcall+0xad/0x357 init/main.c:832
       do_initcall_level init/main.c:898 [inline]
       do_initcalls init/main.c:906 [inline]
       do_basic_setup init/main.c:924 [inline]
       kernel_init_freeable+0x469/0x521 init/main.c:1072
       kernel_init+0x13/0x180 init/main.c:999
       ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:429

-> #0 (k-sk_lock-AF_TIPC){+.+.}:
       lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
       lock_sock_nested+0xc2/0x110 net/core/sock.c:2781
       lock_sock include/net/sock.h:1463 [inline]
       tipc_release+0x103/0xff0 net/tipc/socket.c:572
       sock_release+0x8d/0x1e0 net/socket.c:594
       tipc_topsrv_stop+0x3c0/0x610 net/tipc/topsrv.c:696
       tipc_exit_net+0x15/0x40 net/tipc/core.c:96
       ops_exit_list.isra.6+0xae/0x150 net/core/net_namespace.c:148
       cleanup_net+0x6ba/0xd20 net/core/net_namespace.c:529
       process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2113
       worker_thread+0x223/0x1990 kernel/workqueue.c:2247
       kthread+0x33c/0x400 kernel/kthread.c:238
       ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:429

other info that might help us debug this:

Chain exists of:
  k-sk_lock-AF_TIPC --> &(&sub->lock)->rlock --> &(&srv->idr_lock)->rlock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&srv->idr_lock)->rlock);
                               lock(&(&sub->lock)->rlock);
                               lock(&(&srv->idr_lock)->rlock);
  lock(k-sk_lock-AF_TIPC);

 *** DEADLOCK ***

5 locks held by kworker/u4:12/5357:
 #0:  ((wq_completion)"%s""netns"){+.+.}, at: [<0000000098fbeb20>] process_one_work+0xaaf/0x1af0 kernel/workqueue.c:2084
 #1:  (net_cleanup_work){+.+.}, at: [<000000002a153c13>] process_one_work+0xb01/0x1af0 kernel/workqueue.c:2088
 #2:  (net_sem){++++}, at: [<00000000da6bd959>] cleanup_net+0x23f/0xd20 net/core/net_namespace.c:494
 #3:  (net_mutex){+.+.}, at: [<000000001a885fd0>] cleanup_net+0xa7d/0xd20 net/core/net_namespace.c:496
 #4:  (&(&srv->idr_lock)->rlock){+...}, at: [<00000000fa8bc7a8>] spin_lock_bh include/linux/spinlock.h:315 [inline]
 #4:  (&(&srv->idr_lock)->rlock){+...}, at: [<00000000fa8bc7a8>] tipc_topsrv_stop+0x231/0x610 net/tipc/topsrv.c:685

stack backtrace:
CPU: 1 PID: 5357 Comm: kworker/u4:12 Tainted: G        W        4.16.0-rc1+ #232
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 print_circular_bug.isra.38+0x2cd/0x2dc kernel/locking/lockdep.c:1223
 check_prev_add kernel/locking/lockdep.c:1863 [inline]
 check_prevs_add kernel/locking/lockdep.c:1976 [inline]
 validate_chain kernel/locking/lockdep.c:2417 [inline]
 __lock_acquire+0x30a8/0x3e00 kernel/locking/lockdep.c:3431
 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
 lock_sock_nested+0xc2/0x110 net/core/sock.c:2781
 lock_sock include/net/sock.h:1463 [inline]
 tipc_release+0x103/0xff0 net/tipc/socket.c:572
 sock_release+0x8d/0x1e0 net/socket.c:594
 tipc_topsrv_stop+0x3c0/0x610 net/tipc/topsrv.c:696
 tipc_exit_net+0x15/0x40 net/tipc/core.c:96
 ops_exit_list.isra.6+0xae/0x150 net/core/net_namespace.c:148
 cleanup_net+0x6ba/0xd20 net/core/net_namespace.c:529
 process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2113
 worker_thread+0x223/0x1990 kernel/workqueue.c:2247
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:429
IPv4: Oversized IP packet from 127.0.0.1
IPv4: Oversized IP packet from 127.0.0.1
netlink: 7 bytes leftover after parsing attributes in process `syz-executor4'.
PF_BRIDGE: br_mdb_parse() with invalid ifindex
netlink: 7 bytes leftover after parsing attributes in process `syz-executor4'.
PF_BRIDGE: br_mdb_parse() with invalid ifindex
Bearer <> rejected, not supported in standalone mode
Bearer <> rejected, not supported in standalone mode
kernel msg: ebtables bug: please report to author: counter_offset != totalcnt
kernel msg: ebtables bug: please report to author: counter_offset != totalcnt
BUG: sleeping function called from invalid context at mm/slab.h:420
in_atomic(): 1, irqs_disabled(): 0, pid: 6173, name: syz-executor2
INFO: lockdep is turned off.
CPU: 0 PID: 6173 Comm: syz-executor2 Tainted: G        W        4.16.0-rc1+ #232
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+0x194/0x257 lib/dump_stack.c:53
 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128
 __might_sleep+0x95/0x190 kernel/sched/core.c:6081
 slab_pre_alloc_hook mm/slab.h:420 [inline]
 slab_alloc mm/slab.c:3365 [inline]
 kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605
 kmalloc include/linux/slab.h:512 [inline]
 kzalloc include/linux/slab.h:701 [inline]
 rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126
 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227
 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309
 rds_sendmsg+0xe63/0x2550 net/rds/send.c:1153
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:639
 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2047
 __sys_sendmsg+0xe5/0x210 net/socket.c:2081
 SYSC_sendmsg net/socket.c:2092 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2088
 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x26/0x9b
RIP: 0033:0x453da9
RSP: 002b:00007f975f93dc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f975f93e6d4 RCX: 0000000000453da9
RDX: 0000000000000000 RSI: 0000000020159fc8 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000004a7 R14: 00000000006f7048 R15: 0000000000000000
dccp_v6_rcv: dropped packet with invalid checksum
Dead loop on virtual device ip6_vti0, fix it urgently!
dccp_v6_rcv: dropped packet with invalid checksum
Dead loop on virtual device ip6_vti0, fix it urgently!
kauditd_printk_skb: 11 callbacks suppressed
audit: type=1400 audit(1519105448.156:33): avc:  denied  { getopt } for  pid=6237 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
netlink: 'syz-executor1': attribute type 3 has an invalid length.
raw_sendmsg: syz-executor0 forgot to set AF_INET. Fix it!
audit: type=1400 audit(1519105448.226:34): avc:  denied  { prog_run } for  pid=6247 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1
netlink: 'syz-executor1': attribute type 3 has an invalid length.
audit: type=1400 audit(1519105448.353:35): avc:  denied  { map } for  pid=6312 comm="syz-executor1" path="socket:[16683]" dev="sockfs" ino=16683 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=socket permissive=1
openvswitch: netlink: IP tunnel attribute has 3 unknown bytes.
xt_connbytes: Forcing CT accounting to be enabled
Cannot find add_set index 0 as target
syz-executor4 uses obsolete (PF_INET,SOCK_PACKET)
audit: type=1400 audit(1519105448.643:36): avc:  denied  { name_bind } for  pid=6407 comm="syz-executor5" src=20020 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1
IPv4: Oversized IP packet from 127.0.0.1
IPv4: Oversized IP packet from 127.0.0.1
sctp: [Deprecated]: syz-executor3 (pid 6520) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
audit: type=1400 audit(1519105448.890:37): avc:  denied  { read } for  pid=6518 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1
sctp: [Deprecated]: syz-executor3 (pid 6537) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
mip6: mip6_destopt_init_state: spi is not 0: 3892576256
mip6: mip6_destopt_init_state: spi is not 0: 3892576256
netlink: 'syz-executor3': attribute type 29 has an invalid length.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'.
audit: type=1400 audit(1519105449.115:38): avc:  denied  { map } for  pid=6601 comm="syz-executor4" path="socket:[17033]" dev="sockfs" ino=17033 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
netlink: 'syz-executor3': attribute type 29 has an invalid length.
audit: type=1400 audit(1519105449.115:39): avc:  denied  { read } for  pid=6601 comm="syz-executor4" path="socket:[17033]" dev="sockfs" ino=17033 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'.
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=38 sclass=netlink_tcpdiag_socket pig=6670 comm=syz-executor3
audit: type=1400 audit(1519105449.366:40): avc:  denied  { getattr } for  pid=6701 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1
audit: type=1400 audit(1519105449.366:41): avc:  denied  { create } for  pid=6702 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_scsitransport_socket permissive=1
NFQUEUE: number of total queues is 0
audit: type=1400 audit(1519105449.417:42): avc:  denied  { write } for  pid=6701 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1
syz-executor4 (6724) used greatest stack depth: 14384 bytes left
xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables
Cannot find add_set index 0 as target
sit0: Invalid MTU 65537 requested, hw max 65508
ipt_rpfilter: unknown options encountered
kernel msg: ebtables bug: please report to author: bad policy
kernel msg: ebtables bug: please report to author: bad policy
Cannot find add_set index 9 as target
netlink: 224 bytes leftover after parsing attributes in process `syz-executor4'.
Cannot find add_set index 9 as target
netlink: 224 bytes leftover after parsing attributes in process `syz-executor4'.
x_tables: ip_tables: tcp match: only valid for protocol 6
x_tables: ip_tables: tcp match: only valid for protocol 6
sctp: [Deprecated]: syz-executor5 (pid 7506) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
sctp: [Deprecated]: syz-executor5 (pid 7506) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
x_tables: ip_tables: ah match: only valid for protocol 51
openvswitch: netlink: Message has 8 unknown bytes.
x_tables: ip_tables: ah match: only valid for protocol 51
openvswitch: netlink: Message has 8 unknown bytes.
xt_connbytes: Forcing CT accounting to be enabled
netlink: 'syz-executor7': attribute type 7 has an invalid length.
netlink: 'syz-executor7': attribute type 7 has an invalid length.
Cannot find add_set index 95 as target
Cannot find add_set index 95 as target
netlink: 'syz-executor0': attribute type 29 has an invalid length.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'.
netlink: 'syz-executor0': attribute type 29 has an invalid length.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'.
x_tables: ip6_tables: TCPOPTSTRIP target: only valid in mangle table, not security
x_tables: ip6_tables: TCPOPTSTRIP target: only valid in mangle table, not security
Cannot find add_set index 0 as target
Cannot find add_set index 0 as target
TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
syz-executor0 (8074) used greatest stack depth: 12464 bytes left
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
device syz6 entered promiscuous mode
netlink: 'syz-executor3': attribute type 1 has an invalid length.
netlink: 'syz-executor3': attribute type 1 has an invalid length.
kernel msg: ebtables bug: please report to author: Total nentries is wrong
kernel msg: ebtables bug: please report to author: Total nentries is wrong
IPVS: ftp: loaded support on port[0] = 21
BUG: sleeping function called from invalid context at net/core/sock.c:2772
in_atomic(): 1, irqs_disabled(): 0, pid: 5330, name: kworker/u4:5
INFO: lockdep is turned off.
CPU: 1 PID: 5330 Comm: kworker/u4:5 Tainted: G        W        4.16.0-rc1+ #232
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128
 __might_sleep+0x95/0x190 kernel/sched/core.c:6081
 lock_sock_nested+0x37/0x110 net/core/sock.c:2772
 lock_sock include/net/sock.h:1463 [inline]
 tipc_release+0x103/0xff0 net/tipc/socket.c:572
 sock_release+0x8d/0x1e0 net/socket.c:594
 tipc_topsrv_stop+0x3c0/0x610 net/tipc/topsrv.c:696
 tipc_exit_net+0x15/0x40 net/tipc/core.c:96
 ops_exit_list.isra.6+0xae/0x150 net/core/net_namespace.c:148
 cleanup_net+0x6ba/0xd20 net/core/net_namespace.c:529
 process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2113
 worker_thread+0x223/0x1990 kernel/workqueue.c:2247
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:429
ip_tunnel: non-ECT from 0.0.0.0 with TOS=0x3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2803 sclass=netlink_route_socket pig=8578 comm=syz-executor6
Cannot find add_set index 0 as target
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=2803 sclass=netlink_route_socket pig=8595 comm=syz-executor6
kernel msg: ebtables bug: please report to author: bad policy
netlink: 11 bytes leftover after parsing attributes in process `syz-executor5'.
kernel msg: ebtables bug: please report to author: bad policy
netlink: 11 bytes leftover after parsing attributes in process `syz-executor5'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor4'.
xt_socket: unknown flags 0xf4
netlink: 40 bytes leftover after parsing attributes in process `syz-executor4'.
kauditd_printk_skb: 10 callbacks suppressed
audit: type=1400 audit(1519105454.653:53): avc:  denied  { ioctl } for  pid=8817 comm="syz-executor2" path="socket:[22099]" dev="sockfs" ino=22099 ioctlcmd=0x89e2 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=sock_file permissive=1
netlink: 11 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 11 bytes leftover after parsing attributes in process `syz-executor6'.
openvswitch: netlink: Port -1 exceeds max allowable 65535
openvswitch: netlink: Port -1 exceeds max allowable 65535