TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. ============================= WARNING: suspicious RCU usage 4.15.0+ #307 Not tainted ----------------------------- ./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-executor6/6327: #0: (rcu_read_lock){....}, at: [<0000000084642a96>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 stack backtrace: CPU: 1 PID: 6327 Comm: syz-executor6 Not tainted 4.15.0+ #307 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+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007fea6c14fc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fea6c1506d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020218000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020af3ff0 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: 6327, name: syz-executor6 1 lock held by syz-executor6/6327: #0: (rcu_read_lock){....}, at: [<0000000084642a96>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 1 PID: 6327 Comm: syz-executor6 Not tainted 4.15.0+ #307 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+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007fea6c14fc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fea6c1506d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020218000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020af3ff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. syz-executor0 (6470) used greatest stack depth: 14816 bytes left TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. QAT: Invalid ioctl kauditd_printk_skb: 10 callbacks suppressed audit: type=1400 audit(1518303940.288:39): avc: denied { name_connect } for pid=6594 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. QAT: Invalid ioctl audit: type=1400 audit(1518303940.345:40): avc: denied { name_bind } for pid=6611 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 audit: type=1400 audit(1518303940.345:41): avc: denied { node_bind } for pid=6611 comm="syz-executor5" saddr=::1 src=20020 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. netlink: 'syz-executor0': attribute type 1 has an invalid length. netlink: 'syz-executor0': attribute type 1 has an invalid length. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. xt_connbytes: Forcing CT accounting to be enabled syz-executor2 (6744) used greatest stack depth: 14752 bytes left audit: type=1400 audit(1518303941.980:42): avc: denied { create } for pid=6948 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_fib_lookup_socket permissive=1 audit: type=1400 audit(1518303941.983:43): avc: denied { write } for pid=6948 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_fib_lookup_socket permissive=1 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 7004, name: syz-executor2 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. 1 lock held by syz-executor2/7004: #0: (rcu_read_lock){....}, at: [<0000000084642a96>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 1 PID: 7004 Comm: syz-executor2 Tainted: G W 4.15.0+ #307 binder_alloc: binder_alloc_mmap_handler: 7007 207f9000-207fb000 already mapped failed -16 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 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007fb2f8990c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fb2f89916d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020218000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020af3ff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. syz-executor4 uses obsolete (PF_INET,SOCK_PACKET) TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303943.188:44): avc: denied { read } for pid=7135 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_netfilter_socket permissive=1 PPPIOCDETACH file->f_count=2 ip_tunnel: non-ECT from 0.0.0.0 with TOS=0x3 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 7250 Comm: syz-executor3 Tainted: G W 4.15.0+ #307 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slab.c:3286 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3629 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 alloc_skb_fclone include/linux/skbuff.h:1025 [inline] sk_stream_alloc_skb+0x126/0x9a0 net/ipv4/tcp.c:866 tcp_sendmsg_locked+0x15f6/0x3c70 net/ipv4/tcp.c:1301 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1463 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f8c225f1c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f8c225f26d4 RCX: 0000000000453a59 RDX: d3819432a973de7a RSI: 0000000020f1df23 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 000000002044dff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000015 R13: 00000000000004b7 R14: 00000000006f71c8 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7289 Comm: syz-executor1 Tainted: G W 4.15.0+ #307 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 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slab.c:3286 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3629 __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:983 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1180 [inline] netlink_sendmsg+0xa86/0xe60 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2046 __sys_sendmsg+0xe5/0x210 net/socket.c:2080 SYSC_sendmsg net/socket.c:2091 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2087 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007fa30033ec68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa30033f6d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020b3dfc8 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 00000000000004b1 R14: 00000000006f7138 R15: 0000000000000000 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. binder: 7288:7295 transaction failed 29189/-22, size 0-0 line 2842 binder: undelivered TRANSACTION_ERROR: 29189 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. x86/PAT: syz-executor2:7404 map pfn RAM range req write-combining for [mem 0x1ab360000-0x1ab361fff], got write-back TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303945.487:45): avc: denied { setfcap } for pid=7506 comm="syz-executor1" capability=31 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(1518303945.487:46): avc: denied { setattr } for pid=7506 comm="syz-executor1" name="NETLINK" dev="sockfs" ino=19819 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 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303945.650:47): avc: denied { getopt } for pid=7525 comm="syz-executor1" 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 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9 sclass=netlink_route_socket pig=7559 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9 sclass=netlink_route_socket pig=7584 comm=syz-executor4 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. capability: warning: `syz-executor4' uses deprecated v2 capabilities in a way that may be insecure TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. binder: 7694:7699 Acquire 1 refcount change on invalid ref 1 ret -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 7694:7714 ioctl 40046207 0 returned -16 binder: 7694:7720 Acquire 1 refcount change on invalid ref 1 ret -22 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. Bearer <À> rejected, not supported in standalone mode x_tables: ip_tables: set.4 match: invalid size 48 (kernel) != (user) 40 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. Bearer <> rejected, not supported in standalone mode TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303946.942:48): avc: denied { setopt } for pid=7824 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_connector_socket permissive=1 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303946.967:49): avc: denied { bind } for pid=7824 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_connector_socket permissive=1 TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303947.150:50): avc: denied { write } for pid=7861 comm="syz-executor2" name="net" dev="proc" ino=20292 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=dir permissive=1 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303947.190:51): avc: denied { add_name } for pid=7861 comm="syz-executor2" name="pfkey" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=dir permissive=1 audit: type=1400 audit(1518303947.191:52): avc: denied { create } for pid=7861 comm="syz-executor2" name="pfkey" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:insmod_t:s0 tclass=file permissive=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. audit: type=1400 audit(1518303947.387:53): avc: denied { map } for pid=7902 comm="syz-executor5" path="/dev/audio" dev="devtmpfs" ino=137 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:sound_device_t:s0 tclass=chr_file permissive=1 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. device eql entered promiscuous mode TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20022. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20026. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters.