x_tables: ip6_tables: TCPOPTSTRIP target: only valid in mangle table, not security BUG: sleeping function called from invalid context at net/core/sock.c:2772 in_atomic(): 1, irqs_disabled(): 0, pid: 84, name: kworker/u4:3 5 locks held by kworker/u4:3/84: #0: ((wq_completion)"%s""netns"){+.+.}, at: [<00000000f1ee9b6c>] process_one_work+0xaaf/0x1af0 kernel/workqueue.c:2084 #1: (net_cleanup_work){+.+.}, at: [<00000000437671bd>] process_one_work+0xb01/0x1af0 kernel/workqueue.c:2088 #2: (net_sem){++++}, at: [<000000007f6a51fc>] cleanup_net+0x23f/0xd20 net/core/net_namespace.c:494 #3: (net_mutex){+.+.}, at: [<0000000084d00d12>] cleanup_net+0xa7d/0xd20 net/core/net_namespace.c:496 #4: (&(&srv->idr_lock)->rlock){+...}, at: [<00000000967310e1>] spin_lock_bh include/linux/spinlock.h:315 [inline] #4: (&(&srv->idr_lock)->rlock){+...}, at: [<00000000967310e1>] tipc_topsrv_stop+0x231/0x610 net/tipc/topsrv.c:685 CPU: 1 PID: 84 Comm: kworker/u4:3 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 __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 sctp: failed to load transform for md5: -2 process_one_work+0xbbf/0x1af0 kernel/workqueue.c:2113 sctp: failed to load transform for md5: -2 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 xt_connbytes: Forcing CT accounting to be enabled arp_tables: arp_tables: error: 'îÏ ¡˜™«arY,Gµí>+×t€ó_Ãm ' arp_tables: arp_tables: error: 'îÏ ¡˜™«arY,Gµí>+×t€ó_Ãm ' kernel msg: ebtables bug: please report to author: Valid hook without chain ip_tables: error: `{‹ÅÉMà>¿¨ÀƒzýQ°Â “ÿ|,lûL _ 3¸' syz-executor7 (5790) used greatest stack depth: 15984 bytes left kernel msg: ebtables bug: please report to author: Valid hook without chain xt_TPROXY: Can be used only in combination with either -p tcp or -p udp ip_tables: error: `{‹ÅÉMà>¿¨ÀƒzýQ°Â “ÿ|,lûL _ 3¸' netlink: 'syz-executor4': attribute type 21 has an invalid length. netlink: 'syz-executor4': attribute type 1 has an invalid length. ============================= WARNING: suspicious RCU usage 4.16.0-rc1+ #231 Tainted: G W ----------------------------- ./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-executor1/5837: #0: (rcu_read_lock){....}, at: [<0000000081da2da1>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 stack backtrace: CPU: 0 PID: 5837 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 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 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:00007fe79588dc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe79588e6d4 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 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 5837, name: syz-executor1 1 lock held by syz-executor1/5837: #0: (rcu_read_lock){....}, at: [<0000000081da2da1>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 0 PID: 5837 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 ___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 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:00007fe79588dc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fe79588e6d4 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 kernel msg: ebtables bug: please report to author: bad policy netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor2'. sctp: [Deprecated]: syz-executor6 (pid 5909) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor6 (pid 5928) Use of int in maxseg socket option. Use struct sctp_assoc_value instead dccp_close: ABORT with 254 bytes unread sctp: [Deprecated]: syz-executor2 (pid 5964) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor2 (pid 5999) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 28 bytes leftover after parsing attributes in process `syz-executor0'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13786 sclass=netlink_route_socket pig=6030 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13786 sclass=netlink_route_socket pig=6041 comm=syz-executor0 netlink: 'syz-executor5': attribute type 16 has an invalid length. ====================================================== WARNING: possible circular locking dependency detected 4.16.0-rc1+ #231 Tainted: G W ------------------------------------------------------ syz-executor3/6049 is trying to acquire lock: (&(&srv->idr_lock)->rlock){+...}, at: [<00000000f37eeeb4>] spin_lock_bh include/linux/spinlock.h:315 [inline] (&(&srv->idr_lock)->rlock){+...}, at: [<00000000f37eeeb4>] tipc_conn_lookup+0x1f/0x90 net/tipc/topsrv.c:225 but task is already holding lock: (&(&sub->lock)->rlock){+...}, at: [<000000007fcfa345>] spin_lock include/linux/spinlock.h:310 [inline] (&(&sub->lock)->rlock){+...}, at: [<000000007fcfa345>] tipc_sub_report_overlap+0x3ce/0x4f0 net/tipc/subscr.c:97 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&(&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 -> #3 (&(&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 -> #2 (&(&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 -> #1 (k-sk_lock-AF_TIPC){+.+.}: 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 -> #0 (&(&srv->idr_lock)->rlock){+...}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920 __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 other info that might help us debug this: Chain exists of: &(&srv->idr_lock)->rlock --> &(&nseq->lock)->rlock --> &(&sub->lock)->rlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&sub->lock)->rlock); lock(&(&nseq->lock)->rlock); lock(&(&sub->lock)->rlock); lock(&(&srv->idr_lock)->rlock); *** DEADLOCK *** 4 locks held by syz-executor3/6049: #0: (sk_lock-AF_TIPC){+.+.}, at: [<0000000015becef6>] lock_sock include/net/sock.h:1463 [inline] #0: (sk_lock-AF_TIPC){+.+.}, at: [<0000000015becef6>] tipc_setsockopt+0x13f/0xcf0 net/tipc/socket.c:2847 #1: (&(&tn->nametbl_lock)->rlock){+...}, at: [<00000000923da0ab>] spin_lock_bh include/linux/spinlock.h:315 [inline] #1: (&(&tn->nametbl_lock)->rlock){+...}, at: [<00000000923da0ab>] tipc_nametbl_publish+0x1ff/0x4f0 net/tipc/name_table.c:754 #2: (&(&nseq->lock)->rlock){+...}, at: [<0000000059405178>] spin_lock_bh include/linux/spinlock.h:315 [inline] #2: (&(&nseq->lock)->rlock){+...}, at: [<0000000059405178>] tipc_nametbl_insert_publ+0x2da/0x1850 net/tipc/name_table.c:488 #3: (&(&sub->lock)->rlock){+...}, at: [<000000007fcfa345>] spin_lock include/linux/spinlock.h:310 [inline] #3: (&(&sub->lock)->rlock){+...}, at: [<000000007fcfa345>] tipc_sub_report_overlap+0x3ce/0x4f0 net/tipc/subscr.c:97 stack backtrace: CPU: 1 PID: 6049 Comm: syz-executor3 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 __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 RIP: 0033:0x453d69 RSP: 002b:00007f8e5690bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f8e5690c6d4 RCX: 0000000000453d69 RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000014 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020265000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000005a6 R14: 00000000006f8830 R15: 0000000000000000 syz-executor2 (6081) used greatest stack depth: 14384 bytes left TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. kauditd_printk_skb: 7 callbacks suppressed audit: type=1400 audit(1519050816.985:36): avc: denied { setopt } for pid=6173 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_generic_socket permissive=1 xt_limit: Overflow, try lower: 2147483648/8 xt_limit: Overflow, try lower: 2147483648/8 xt_connbytes: Forcing CT accounting to be enabled x_tables: ip6_tables: REJECT target: only valid in filter table, not audit: type=1400 audit(1519050818.205:37): avc: denied { net_bind_service } for pid=6564 comm="syz-executor2" capability=10 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 audit: type=1400 audit(1519050818.313:38): avc: denied { map } for pid=6600 comm="syz-executor5" path="pipe:[17190]" dev="pipefs" ino=17190 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 audit: type=1400 audit(1519050818.313:39): avc: denied { listen } for pid=6598 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_netfilter_socket permissive=1 xt_connbytes: cannot load conntrack support for proto=7 xt_connbytes: Forcing CT accounting to be enabled xt_connbytes: cannot load conntrack support for proto=7 x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 audit: type=1400 audit(1519050818.661:40): avc: denied { create } for pid=6709 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_iscsi_socket permissive=1 audit: type=1400 audit(1519050818.699:41): avc: denied { accept } for pid=6718 comm="syz-executor6" 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 audit: type=1400 audit(1519050818.764:42): avc: denied { create } for pid=6730 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_scsitransport_socket permissive=1 openvswitch: netlink: Message has 1 unknown bytes. openvswitch: netlink: Message has 1 unknown bytes. xt_CT: You must specify a L4 protocol, and not use inversions on it. audit: type=1400 audit(1519050819.055:43): avc: denied { getattr } for pid=6842 comm="syz-executor2" 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 xt_CT: You must specify a L4 protocol, and not use inversions on it. xt_cgroup: invalid path, errno=-2 xt_cgroup: invalid path, errno=-2 x_tables: ip6_tables: TCPOPTSTRIP target: only valid in mangle table, not security x_tables: ip_tables: icmp match: only valid for protocol 1 audit: type=1400 audit(1519050819.358:44): avc: denied { bind } for pid=6927 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 syz-executor2 (6932) used greatest stack depth: 13520 bytes left x_tables: ip_tables: icmp match: only valid for protocol 1 Cannot find add_set index 0 as target kernel msg: ebtables bug: please report to author: bad policy kernel msg: ebtables bug: please report to author: bad policy x_tables: ip_tables: socket match: used from hooks FORWARD, but only valid from PREROUTING/INPUT xt_socket: unknown flags 0xa4 xt_socket: unknown flags 0xa4 x_tables: ip_tables: socket match: used from hooks FORWARD, but only valid from PREROUTING/INPUT xt_connbytes: Forcing CT accounting to be enabled xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables xt_hashlimit: max count of 1 reached netlink: 28 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor7'. audit: type=1400 audit(1519050821.002:45): avc: denied { map } for pid=7533 comm="syz-executor2" path="socket:[19549]" dev="sockfs" ino=19549 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=tcp_socket permissive=1 Cannot find set identified by id 0 to match dst_release: dst:000000002a74d07c refcnt:-1 syz-executor6 uses obsolete (PF_INET,SOCK_PACKET) device syz7 entered promiscuous mode x_tables: ip_tables: ah match: only valid for protocol 51 x_tables: ip_tables: ah match: only valid for protocol 51 Cannot find set identified by id 0 to match Cannot find set identified by id 0 to match xt_connbytes: Forcing CT accounting to be enabled dccp_close: ABORT with 253 bytes unread kernel msg: ebtables bug: please report to author: bad policy kauditd_printk_skb: 4 callbacks suppressed audit: type=1400 audit(1519050822.365:50): avc: denied { ioctl } for pid=8006 comm="syz-executor4" path="socket:[20126]" dev="sockfs" ino=20126 ioctlcmd=0x8935 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-executor6 (pid 8046) Use of int in max_burst socket option. Use struct sctp_assoc_value instead netlink: 'syz-executor5': attribute type 2 has an invalid length. netlink: 'syz-executor5': attribute type 2 has an invalid length. xt_connbytes: Forcing CT accounting to be enabled sctp: [Deprecated]: syz-executor6 (pid 8074) Use of int in max_burst socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor2 (pid 8105) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor2 (pid 8128) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead kernel msg: ebtables bug: please report to author: entries_size too small