------------[ cut here ]------------ AppArmor WARN apparmor_secid_to_secctx: ((!secdata)): WARNING: CPU: 1 PID: 6010 at security/apparmor/secid.c:82 apparmor_secid_to_secctx+0x2b1/0x2f0 security/apparmor/secid.c:82 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6010 Comm: syz-executor1 Not tainted 4.19.0-rc2+ #213 TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 ------------[ cut here ]------------ __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x254/0x2d0 lib/bug.c:186 AppArmor WARN apparmor_secid_to_secctx: ((!secdata)): fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 WARNING: CPU: 0 PID: 6016 at security/apparmor/secid.c:82 apparmor_secid_to_secctx+0x2b1/0x2f0 security/apparmor/secid.c:82 Modules linked in: CPU: 0 PID: 6016 Comm: syz-executor3 Not tainted 4.19.0-rc2+ #213 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:apparmor_secid_to_secctx+0x2b1/0x2f0 security/apparmor/secid.c:82 Code: c7 c7 c0 67 5f 88 e8 de 44 f4 fd 0f 0b e9 6c fe ff ff e8 12 5a 2a fe 48 c7 c6 00 69 5f 88 48 c7 c7 20 67 5f 88 e8 bf 44 f4 fd <0f> 0b e9 3f fe ff ff 48 89 df e8 90 c8 6d fe e9 ed fe ff ff bb f4 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 RSP: 0018:ffff8801dac06318 EFLAGS: 00010282 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993 RAX: 0000000000000000 RBX: ffff8801dac064d8 RCX: 0000000000000000 RIP: 0010:apparmor_secid_to_secctx+0x2b1/0x2f0 security/apparmor/secid.c:82 RDX: 0000000000000100 RSI: ffffffff8164f825 RDI: 0000000000000005 Code: c7 c7 c0 67 5f 88 e8 de 44 f4 fd 0f 0b e9 6c fe ff ff e8 12 5a 2a fe 48 c7 c6 00 69 5f 88 48 c7 c7 20 67 5f 88 e8 bf 44 f4 fd <0f> 0b e9 3f fe ff ff 48 89 df e8 90 c8 6d fe e9 ed fe ff ff bb f4 RBP: ffff8801dac06338 R08: ffff8801a4fbc480 R09: 0000000000000002 RSP: 0018:ffff8801dad06248 EFLAGS: 00010286 R10: 0000000000000000 R11: ffff8801a4fbc480 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801dac064d8 RAX: 0000000000000000 RBX: ffff8801dad06408 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff8164f825 RDI: 0000000000000005 FS: 00007f0e7b998700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000 RBP: ffff8801dad06268 R08: ffff8801d7e341c0 R09: 0000000000000002 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 R10: 0000000000000000 R11: ffff8801d7e341c0 R12: 0000000000000001 CR2: 0000000020000000 CR3: 00000001cb341000 CR4: 00000000001406f0 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801dad06408 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: security_secid_to_secctx+0x64/0xc0 security/security.c:1314 security_secid_to_secctx+0x64/0xc0 security/security.c:1314 ctnetlink_secctx_size net/netfilter/nf_conntrack_netlink.c:621 [inline] ctnetlink_nlmsg_size net/netfilter/nf_conntrack_netlink.c:659 [inline] ctnetlink_conntrack_event+0x303/0x1470 net/netfilter/nf_conntrack_netlink.c:706 ctnetlink_secctx_size net/netfilter/nf_conntrack_netlink.c:621 [inline] ctnetlink_nlmsg_size net/netfilter/nf_conntrack_netlink.c:659 [inline] ctnetlink_conntrack_event+0x303/0x1470 net/netfilter/nf_conntrack_netlink.c:706 nf_conntrack_eventmask_report+0x528/0x8c0 net/netfilter/nf_conntrack_ecache.c:151 nf_ct_deliver_cached_events+0x4e3/0x7d0 net/netfilter/nf_conntrack_ecache.c:215 nf_conntrack_event_report include/net/netfilter/nf_conntrack_ecache.h:112 [inline] nf_ct_delete+0x324/0x590 net/netfilter/nf_conntrack_core.c:601 nf_conntrack_confirm include/net/netfilter/nf_conntrack_core.h:64 [inline] ipv4_confirm+0x2d5/0x500 net/netfilter/nf_conntrack_proto.c:451 nf_ct_kill_acct+0x12c/0x160 net/netfilter/nf_conntrack_core.c:1657 tcp_packet+0x3ee4/0x5fb4 net/netfilter/nf_conntrack_proto_tcp.c:1046 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xc2/0x1c0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:242 [inline] NF_HOOK_COND include/linux/netfilter.h:275 [inline] ip_output+0x57f/0x8d0 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:444 [inline] ip_local_out+0xc5/0x1b0 net/ipv4/ip_output.c:124 ip_build_and_send_pkt+0x658/0xc80 net/ipv4/ip_output.c:180 tcp_v4_send_synack+0x24b/0x4b0 net/ipv4/tcp_ipv4.c:946 nf_conntrack_in+0x7bf/0x1240 net/netfilter/nf_conntrack_core.c:1559 tcp_conn_request+0x1375/0x4120 net/ipv4/tcp_input.c:6526 ipv4_conntrack_local+0x1bc/0x290 net/netfilter/nf_conntrack_proto.c:480 nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline] nf_hook_slow+0xc2/0x1c0 net/netfilter/core.c:511 nf_hook include/linux/netfilter.h:242 [inline] __ip_local_out+0x56e/0xb30 net/ipv4/ip_output.c:113 ip_local_out+0x2d/0x1b0 net/ipv4/ip_output.c:122 ip_send_skb+0x40/0xe0 net/ipv4/ip_output.c:1441 ip_push_pending_frames+0x64/0x80 net/ipv4/ip_output.c:1461 ip_send_unicast_reply+0xf1d/0x1770 net/ipv4/ip_output.c:1601 tcp_v4_conn_request+0xc2/0x240 net/ipv4/tcp_ipv4.c:1382 tcp_v6_conn_request+0x1f6/0x2b0 net/ipv6/tcp_ipv6.c:1036 tcp_v4_send_reset+0x127b/0x2980 net/ipv4/tcp_ipv4.c:774 tcp_rcv_state_process+0xbbf/0x4ffe net/ipv4/tcp_input.c:6028 tcp_v4_do_rcv+0x363/0x8f0 net/ipv4/tcp_ipv4.c:1554 tcp_v4_rcv+0x1e60/0x3b20 net/ipv4/tcp_ipv4.c:1848 tcp_v4_rcv+0x362c/0x3b20 net/ipv4/tcp_ipv4.c:1814 ip_local_deliver_finish+0x2e9/0xda0 net/ipv4/ip_input.c:215 ip_local_deliver_finish+0x2e9/0xda0 net/ipv4/ip_input.c:215 NF_HOOK include/linux/netfilter.h:287 [inline] ip_local_deliver+0x1e9/0x750 net/ipv4/ip_input.c:256 NF_HOOK include/linux/netfilter.h:287 [inline] ip_local_deliver+0x1e9/0x750 net/ipv4/ip_input.c:256 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1f9/0x300 net/ipv4/ip_input.c:415 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1f9/0x300 net/ipv4/ip_input.c:415 NF_HOOK include/linux/netfilter.h:287 [inline] ip_rcv+0xed/0x610 net/ipv4/ip_input.c:524 NF_HOOK include/linux/netfilter.h:287 [inline] ip_rcv+0xed/0x610 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4894 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4894 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5004 process_backlog+0x217/0x760 net/core/dev.c:5808 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5004 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 process_backlog+0x217/0x760 net/core/dev.c:5808 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1047 do_softirq.part.13+0x126/0x160 kernel/softirq.c:336 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1047 do_softirq kernel/softirq.c:328 [inline] __local_bh_enable_ip+0x21d/0x260 kernel/softirq.c:189 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:723 [inline] ip_finish_output2+0xab6/0x18d0 net/ipv4/ip_output.c:231 do_softirq.part.13+0x126/0x160 kernel/softirq.c:336 do_softirq kernel/softirq.c:328 [inline] __local_bh_enable_ip+0x21d/0x260 kernel/softirq.c:189 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:723 [inline] ip_finish_output2+0xab6/0x18d0 net/ipv4/ip_output.c:231 ip_finish_output+0x7fd/0xf90 net/ipv4/ip_output.c:317 ip_finish_output+0x7fd/0xf90 net/ipv4/ip_output.c:317 NF_HOOK_COND include/linux/netfilter.h:276 [inline] ip_output+0x21d/0x8d0 net/ipv4/ip_output.c:405 NF_HOOK_COND include/linux/netfilter.h:276 [inline] ip_output+0x21d/0x8d0 net/ipv4/ip_output.c:405 dst_output include/net/dst.h:444 [inline] ip_local_out+0xc5/0x1b0 net/ipv4/ip_output.c:124 __ip_queue_xmit+0x9af/0x1f30 net/ipv4/ip_output.c:505 dst_output include/net/dst.h:444 [inline] ip_local_out+0xc5/0x1b0 net/ipv4/ip_output.c:124 __ip_queue_xmit+0x9af/0x1f30 net/ipv4/ip_output.c:505 ip_queue_xmit+0x56/0x70 include/net/ip.h:197 __tcp_transmit_skb+0x1cbc/0x3fc0 net/ipv4/tcp_output.c:1159 ip_queue_xmit+0x56/0x70 include/net/ip.h:197 __tcp_transmit_skb+0x1cbc/0x3fc0 net/ipv4/tcp_output.c:1159 tcp_transmit_skb net/ipv4/tcp_output.c:1175 [inline] tcp_send_syn_data net/ipv4/tcp_output.c:3451 [inline] tcp_connect+0x2274/0x46e0 net/ipv4/tcp_output.c:3490 tcp_transmit_skb net/ipv4/tcp_output.c:1175 [inline] tcp_send_syn_data net/ipv4/tcp_output.c:3451 [inline] tcp_connect+0x2274/0x46e0 net/ipv4/tcp_output.c:3490 tcp_v4_connect+0x1996/0x1dd0 net/ipv4/tcp_ipv4.c:315 tcp_v4_connect+0x1996/0x1dd0 net/ipv4/tcp_ipv4.c:315 tcp_v6_connect+0x8fb/0x29b0 net/ipv6/tcp_ipv6.c:238 tcp_v6_connect+0x8fb/0x29b0 net/ipv6/tcp_ipv6.c:238 __inet_stream_connect+0x992/0x1150 net/ipv4/af_inet.c:655 __inet_stream_connect+0x992/0x1150 net/ipv4/af_inet.c:655 tcp_sendmsg_fastopen net/ipv4/tcp.c:1161 [inline] tcp_sendmsg_locked+0x2c5d/0x3e90 net/ipv4/tcp.c:1208 tcp_sendmsg_fastopen net/ipv4/tcp.c:1161 [inline] tcp_sendmsg_locked+0x2c5d/0x3e90 net/ipv4/tcp.c:1208 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1443 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1443 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 __sys_sendto+0x3d7/0x670 net/socket.c:1786 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 __sys_sendto+0x3d7/0x670 net/socket.c:1786 __do_sys_sendto net/socket.c:1798 [inline] __se_sys_sendto net/socket.c:1794 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1794 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 __do_sys_sendto net/socket.c:1798 [inline] __se_sys_sendto net/socket.c:1794 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1794 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4572d9 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0e7b997c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f0e7b9986d4 RCX: 00000000004572d9 entry_SYSCALL_64_after_hwframe+0x49/0xbe RDX: fffffffffffffedd RSI: 0000000020000280 RDI: 0000000000000004 RBP: 00000000009300a0 R08: 0000000020000080 R09: 000000000000001c RIP: 0033:0x4572d9 R10: 000000002000012c R11: 0000000000000246 R12: 00000000ffffffff Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 R13: 00000000004d5048 R14: 00000000004c94c2 R15: 0000000000000000 RSP: 002b:00007f3cd256dc78 EFLAGS: 00000246 irq event stamp: 351 ORIG_RAX: 000000000000002c hardirqs last enabled at (350): [] trace_hardirqs_on_thunk+0x1a/0x1c RAX: ffffffffffffffda RBX: 00007f3cd256e6d4 RCX: 00000000004572d9 hardirqs last disabled at (351): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (278): [] rcu_read_unlock_bh include/linux/rcupdate.h:719 [inline] softirqs last enabled at (278): [] ip_finish_output2+0xa83/0x18d0 net/ipv4/ip_output.c:231 RDX: fffffffffffffedd RSI: 0000000020000280 RDI: 0000000000000003 softirqs last disabled at (279): [] do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1047 ---[ end trace 1eb78e4dd25869f0 ]--- RBP: 00000000009300a0 R08: 0000000020000080 R09: 000000000000001c ------------[ cut here ]------------ R10: 000000002000012c R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5048 R14: 00000000004c94c2 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..