dccp_invalid_packet: P.CsCov 12 exceeds packet length 52 BUG: sleeping function called from invalid context at net/core/sock.c:2772 in_atomic(): 1, irqs_disabled(): 0, pid: 5, name: kworker/u4:0 5 locks held by kworker/u4:0/5: #0: ((wq_completion)"%s""netns"){+.+.}, at: [<000000006a3a224a>] process_one_work+0xaaf/0x1af0 kernel/workqueue.c:2084 #1: (net_cleanup_work){+.+.}, at: [<0000000087a642ac>] process_one_work+0xb01/0x1af0 kernel/workqueue.c:2088 #2: (net_sem){++++}, at: [<000000001f81a4ef>] cleanup_net+0x23f/0xd20 net/core/net_namespace.c:494 #3: (net_mutex){+.+.}, at: [<00000000a0f537dd>] cleanup_net+0xa7d/0xd20 net/core/net_namespace.c:496 #4: (&(&srv->idr_lock)->rlock){+...}, at: [<000000002b109e5b>] spin_lock_bh include/linux/spinlock.h:315 [inline] #4: (&(&srv->idr_lock)->rlock){+...}, at: [<000000002b109e5b>] tipc_topsrv_stop+0x231/0x610 net/tipc/topsrv.c:685 CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.16.0-rc1+ #231 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 WARNING: suspicious RCU usage __might_sleep+0x95/0x190 kernel/sched/core.c:6081 4.16.0-rc1+ #231 Not tainted 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 ----------------------------- ./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor2/5675: sock_release+0x8d/0x1e0 net/socket.c:594 #0: tipc_topsrv_stop+0x3c0/0x610 net/tipc/topsrv.c:696 ( rcu_read_lock 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 , at: [<00000000ae7d3c5a>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2113 stack backtrace: 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 CPU: 0 PID: 5675 Comm: syz-executor2 Not tainted 4.16.0-rc1+ #231 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 dccp_invalid_packet: P.CsCov 12 exceeds packet length 52 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline] ___might_sleep+0x385/0x470 kernel/sched/core.c:6093 __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 raw_sendmsg: syz-executor3 forgot to set AF_INET. Fix it! 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 SYSC_sendto+0x361/0x5c0 net/socket.c:1748 SyS_sendto+0x40/0x50 net/socket.c:1716 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453d69 RSP: 002b:00007ffb6a0e6c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007ffb6a0e76d4 RCX: 0000000000453d69 RDX: 0000000000000001 RSI: 00000000203edfff RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000020dfcff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 audit: type=1400 audit(1519048643.762:24): avc: denied { map } for pid=5726 comm="syz-executor0" path="socket:[15296]" dev="sockfs" ino=15296 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_route_socket permissive=1 invalid argument - start or stop time greater than 23:59:59 IPv4: Oversized IP packet from 127.0.0.1 audit: type=1400 audit(1519048643.975:25): avc: denied { accept } for pid=5778 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 invalid argument - start or stop time greater than 23:59:59 IPv4: Oversized IP packet from 127.0.0.1 audit: type=1400 audit(1519048644.000:26): avc: denied { getopt } for pid=5778 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 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=51435 sclass=netlink_route_socket pig=5918 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=51435 sclass=netlink_route_socket pig=5918 comm=syz-executor4 netlink: 'syz-executor7': attribute type 2 has an invalid length. x_tables: ip6_tables: icmp6 match: only valid for protocol 58 x_tables: ip6_tables: icmp6 match: only valid for protocol 58 audit: type=1400 audit(1519048644.907:27): avc: denied { name_bind } for pid=6000 comm="syz-executor3" src=20015 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1519048644.907:28): avc: denied { node_bind } for pid=6000 comm="syz-executor3" src=20015 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1519048644.930:29): avc: denied { name_connect } for pid=6000 comm="syz-executor3" dest=20015 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 sctp: [Deprecated]: syz-executor6 (pid 6065) Use of int in max_burst socket option. Use struct sctp_assoc_value instead xt_connbytes: Forcing CT accounting to be enabled TCP: request_sock_TCP: Possible SYN flooding on port 20010. Sending cookies. Check SNMP counters. mip6: mip6_destopt_init_state: state's mode is not 2: 0 mip6: mip6_destopt_init_state: state's mode is not 2: 0 sctp: [Deprecated]: syz-executor2 (pid 6161) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor2 (pid 6167) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor2 (pid 6167) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor2 (pid 6167) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead ====================================================== WARNING: possible circular locking dependency detected 4.16.0-rc1+ #231 Tainted: G W ------------------------------------------------------ syz-executor1/6196 is trying to acquire lock: (rtnl_mutex){+.+.}, at: [<00000000bc0c064a>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:74 but task is already holding lock: (&xt[i].mutex){+.+.}, at: [<0000000077f4040d>] xt_find_table_lock+0x3e/0x3e0 net/netfilter/x_tables.c:1046 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&xt[i].mutex){+.+.}: __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 xt_find_table_lock+0x3e/0x3e0 net/netfilter/x_tables.c:1046 xt_request_find_table_lock+0x28/0xc0 net/netfilter/x_tables.c:1093 get_info+0x154/0x690 net/ipv6/netfilter/ip6_tables.c:989 do_ip6t_get_ctl+0x159/0xaf0 net/ipv6/netfilter/ip6_tables.c:1710 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x6a/0xc0 net/netfilter/nf_sockopt.c:122 ipv6_getsockopt+0x1df/0x2e0 net/ipv6/ipv6_sockglue.c:1371 tcp_getsockopt+0x82/0xd0 net/ipv4/tcp.c:3359 sock_common_getsockopt+0x95/0xd0 net/core/sock.c:2938 SYSC_getsockopt net/socket.c:1881 [inline] SyS_getsockopt+0x178/0x340 net/socket.c:1863 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b -> #1 (sk_lock-AF_INET6){+.+.}: lock_sock_nested+0xc2/0x110 net/core/sock.c:2781 lock_sock include/net/sock.h:1463 [inline] do_ipv6_setsockopt.isra.8+0x3c5/0x39d0 net/ipv6/ipv6_sockglue.c:167 ipv6_setsockopt+0xd7/0x130 net/ipv6/ipv6_sockglue.c:922 udpv6_setsockopt+0x45/0x80 net/ipv6/udp.c:1422 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2979 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 -> #0 (rtnl_mutex){+.+.}: 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 unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1673 tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:654 __do_replace+0x79d/0xa50 net/ipv4/netfilter/ip_tables.c:1089 do_replace net/ipv4/netfilter/ip_tables.c:1145 [inline] do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1675 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:2401 ipv6_setsockopt+0xa0/0x130 net/ipv6/ipv6_sockglue.c:917 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2905 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2979 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 other info that might help us debug this: Chain exists of: rtnl_mutex --> sk_lock-AF_INET6 --> &xt[i].mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&xt[i].mutex); lock(sk_lock-AF_INET6); lock(&xt[i].mutex); lock(rtnl_mutex); *** DEADLOCK *** 1 lock held by syz-executor1/6196: #0: (&xt[i].mutex){+.+.}, at: [<0000000077f4040d>] xt_find_table_lock+0x3e/0x3e0 net/netfilter/x_tables.c:1046 stack backtrace: CPU: 0 PID: 6196 Comm: syz-executor1 Tainted: G W 4.16.0-rc1+ #231 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 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 __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 unregister_netdevice_notifier+0x91/0x4e0 net/core/dev.c:1673 tee_tg_destroy+0x61/0xc0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x218/0x350 net/ipv4/netfilter/ip_tables.c:654 __do_replace+0x79d/0xa50 net/ipv4/netfilter/ip_tables.c:1089 do_replace net/ipv4/netfilter/ip_tables.c:1145 [inline] do_ipt_set_ctl+0x40f/0x5f0 net/ipv4/netfilter/ip_tables.c:1675 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:2401 ipv6_setsockopt+0xa0/0x130 net/ipv6/ipv6_sockglue.c:917 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2905 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2979 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 RIP: 0033:0x453d69 RSP: 002b:00007f3857539c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f385753a6d4 RCX: 0000000000453d69 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000015 RBP: 000000000072bea0 R08: 0000000000000370 R09: 0000000000000000 R10: 0000000020031000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004d6 R14: 00000000006f74b0 R15: 0000000000000000 ipt_ECN: cannot use TCP operations on a non-tcp rule ipt_ECN: cannot use TCP operations on a non-tcp rule netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. openvswitch: netlink: Flow key attr not present in new flow. netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. openvswitch: netlink: Flow key attr not present in new flow. audit: type=1400 audit(1519048646.926:30): avc: denied { create } for pid=6302 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 audit: type=1400 audit(1519048646.926:31): avc: denied { create } for pid=6296 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_crypto_socket permissive=1 audit: type=1400 audit(1519048646.926:32): avc: denied { setopt } for pid=6296 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_crypto_socket permissive=1 audit: type=1400 audit(1519048646.975:33): avc: denied { write } for pid=6302 comm="syz-executor0" path="socket:[15929]" dev="sockfs" ino=15929 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 audit: type=1400 audit(1519048646.975:34): avc: denied { create } for pid=6304 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_rdma_socket permissive=1 audit: type=1400 audit(1519048646.975:35): avc: denied { connect } for pid=6302 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_connector_socket permissive=1 audit: type=1400 audit(1519048647.027:36): avc: denied { map } for pid=6336 comm="syz-executor0" path=2F616E6F6E5F6875676570616765202864656C6574656429 dev="hugetlbfs" ino=15993 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:hugetlbfs_t:s0 tclass=file permissive=1 device syz6 entered promiscuous mode xt_hashlimit: overflow, rate too high: 0 audit: type=1400 audit(1519048647.249:37): avc: denied { map } for pid=6407 comm="syz-executor3" path="pipe:[17111]" dev="pipefs" ino=17111 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=fifo_file permissive=1 xt_CT: You must specify a L4 protocol, and not use inversions on it. xt_addrtype: output interface limitation not valid in PREROUTING and INPUT xt_addrtype: output interface limitation not valid in PREROUTING and INPUT SELinux: unrecognized netlink message: protocol=0 nlmsg_type=42366 sclass=netlink_route_socket pig=6551 comm=syz-executor7 kernel msg: ebtables bug: please report to author: Wrong len argument Cannot find map_set index 0 as target SELinux: unrecognized netlink message: protocol=0 nlmsg_type=42366 sclass=netlink_route_socket pig=6564 comm=syz-executor7 kernel msg: ebtables bug: please report to author: Wrong len argument Cannot find map_set index 0 as target dccp_invalid_packet: P.Data Offset(0) too small netlink: 7 bytes leftover after parsing attributes in process `syz-executor5'. PF_BRIDGE: br_mdb_parse() with invalid ifindex dccp_invalid_packet: P.Data Offset(0) too small xt_connbytes: Forcing CT accounting to be enabled ipt_CLUSTERIP: unknown mode 3 ipt_CLUSTERIP: unknown mode 3 audit: type=1400 audit(1519048648.114:38): avc: denied { net_broadcast } for pid=6705 comm="syz-executor7" capability=11 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 l2tp_core: tunl 1: fd 22 wrong protocol, got 1, expected 17 audit: type=1400 audit(1519048648.364:39): avc: denied { accept } for pid=6804 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_generic_socket permissive=1 can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. dccp_v6_rcv: dropped packet with invalid checksum netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor7'. x_tables: ip6_tables: eui64 match: used from hooks FORWARD/OUTPUT, but only valid from PREROUTING/INPUT/FORWARD kernel msg: ebtables bug: please report to author: bad policy x_tables: ip6_tables: eui64 match: used from hooks FORWARD/OUTPUT, but only valid from PREROUTING/INPUT/FORWARD kernel msg: ebtables bug: please report to author: bad policy l2tp_core: tunl 59: sockfd_lookup(fd=0) returned -88 l2tp_core: tunl 59: sockfd_lookup(fd=0) returned -88 netlink: 'syz-executor3': attribute type 1 has an invalid length. netlink: 'syz-executor3': attribute type 1 has an invalid length. openvswitch: netlink: Either Ethernet header or EtherType is required. openvswitch: netlink: Either Ethernet header or EtherType is required. netlink: 16 bytes leftover after parsing attributes in process `syz-executor5'. xt_connbytes: Forcing CT accounting to be enabled sock: sock_set_timeout: `syz-executor1' (pid 7050) tries to set negative timeout syz4: Invalid MTU 31 requested, hw min 68 Cannot find add_set index 4096 as target Cannot find add_set index 4096 as target ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table netlink: 'syz-executor6': attribute type 1 has an invalid length. netlink: 'syz-executor6': attribute type 1 has an invalid length. x_tables: ip_tables: icmp match: only valid for protocol 1 x_tables: ip_tables: icmp match: only valid for protocol 1 netlink: 'syz-executor1': attribute type 21 has an invalid length. netlink: 'syz-executor1': attribute type 21 has an invalid length. TCP: request_sock_TCPv6: Possible SYN flooding on port 20018. Sending cookies. Check SNMP counters. Cannot find add_set index 0 as target sctp: [Deprecated]: syz-executor1 (pid 7350) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead Cannot find add_set index 0 as target sctp: [Deprecated]: syz-executor1 (pid 7350) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 7 bytes leftover after parsing attributes in process `syz-executor2'. PF_BRIDGE: br_mdb_parse() with invalid ifindex netlink: 7 bytes leftover after parsing attributes in process `syz-executor2'. PF_BRIDGE: br_mdb_parse() with invalid ifindex openvswitch: netlink: Message has 4 unknown bytes. openvswitch: netlink: Message has 4 unknown bytes. xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables RDS: rds_bind could not find a transport for 172.20.0.170, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 172.20.0.170, load rds_tcp or rds_rdma? xt_connbytes: Forcing CT accounting to be enabled IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: NLM_F_REPLACE set, but no existing node found! ipt_CLUSTERIP: Please specify destination IP xt_CT: No such helper "snmp_trap" xt_CT: No such helper "snmp_trap" netlink: 'syz-executor4': attribute type 3 has an invalid length. netlink: 844 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 'syz-executor4': attribute type 3 has an invalid length. netlink: 844 bytes leftover after parsing attributes in process `syz-executor4'. xt_connbytes: Forcing CT accounting to be enabled Cannot find add_set index 1025 as target Cannot find add_set index 1025 as target xt_connbytes: Forcing CT accounting to be enabled kauditd_printk_skb: 5 callbacks suppressed audit: type=1400 audit(1519048651.964:45): avc: denied { getattr } for pid=8078 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_crypto_socket permissive=1 device syz7 entered promiscuous mode syz3: FDB only supports static addresses xt_CT: You must specify a L4 protocol, and not use inversions on it. xt_CT: You must specify a L4 protocol, and not use inversions on it.