------------[ cut here ]------------ AppArmor WARN apparmor_secid_to_secctx: ((!secdata)): WARNING: CPU: 1 PID: 6595 at security/apparmor/secid.c:82 apparmor_secid_to_secctx+0x2b5/0x2f0 security/apparmor/secid.c:82 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6595 Comm: syz-executor2 Not tainted 4.19.0-rc2-next-20180904+ #55 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+0x1c9/0x2b4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:996 RIP: 0010:apparmor_secid_to_secctx+0x2b5/0x2f0 security/apparmor/secid.c:82 Code: c7 c7 e0 a4 58 87 e8 2a 9c 0d fe 0f 0b e9 6c fe ff ff e8 2e df 42 fe 48 c7 c6 20 a6 58 87 48 c7 c7 40 a4 58 87 e8 0b 9c 0d fe <0f> 0b e9 3f fe ff ff 48 89 df e8 6c fb 81 fe e9 ed fe ff ff bb f4 RSP: 0018:ffff88016c745bd8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88016c745d98 RCX: ffffc90003291000 RDX: 0000000000004689 RSI: ffffffff8163ba91 RDI: 0000000000000001 RBP: ffff88016c745bf8 R08: ffff8801b85f0740 R09: ffffed003b623eca R10: ffffed003b623eca R11: ffff8801db11f657 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88016c745d98 security_secid_to_secctx+0x63/0xc0 security/security.c:1357 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_ct_deliver_cached_events+0x4eb/0x7e0 net/netfilter/nf_conntrack_ecache.c:215 nf_conntrack_confirm include/net/netfilter/nf_conntrack_core.h:64 [inline] ipv4_confirm+0x2d5/0x500 net/netfilter/nf_conntrack_proto.c:451 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+0x562/0x880 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+0x9b6/0x1f20 net/ipv4/ip_output.c:505 sctp_v4_xmit+0x1a7/0x200 net/sctp/protocol.c:991 sctp_packet_transmit+0x298e/0x3df0 net/sctp/output.c:650 sctp_packet_singleton net/sctp/outqueue.c:791 [inline] sctp_outq_flush_ctrl.constprop.12+0x795/0xe80 net/sctp/outqueue.c:922 sctp_outq_flush+0x310/0x34b0 net/sctp/outqueue.c:1204 sctp_outq_uncork+0x6a/0x80 net/sctp/outqueue.c:776 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1820 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1220 [inline] sctp_do_sm+0x61d/0x71e0 net/sctp/sm_sideeffect.c:1191 sctp_primitive_ASSOCIATE+0x9d/0xd0 net/sctp/primitive.c:88 __sctp_connect+0x9b1/0xd90 net/sctp/socket.c:1245 __sctp_setsockopt_connectx+0x134/0x190 net/sctp/socket.c:1368 sctp_setsockopt_connectx_old net/sctp/socket.c:1384 [inline] sctp_setsockopt+0x188d/0x6db0 net/sctp/socket.c:4348 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3038 __sys_setsockopt+0x1c5/0x3b0 net/socket.c:1901 __do_sys_setsockopt net/socket.c:1912 [inline] __se_sys_setsockopt net/socket.c:1909 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1909 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:00007f5e2fa2ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f5e2fa2b6d4 RCX: 00000000004572d9 RDX: 000000000000006b RSI: 0000000000000084 RDI: 0000000000000005 RBP: 00000000009300a0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d5fc0 R14: 00000000004c0fd8 R15: 0000000000000000 Dumping ftrace buffer: --------------------------------- CPU:1 [LOST 711 EVENTS] syz-exec-24200 1...2 721518583us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518623us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518645us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518686us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518845us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518957us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518964us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518969us : 0: u000000005636d6d5 syz-exec-24200 1...2 721518976us : 0: u000000005636d6d5 syz-exec-24200 1.N.2 721519115us : 0: u000000005636d6d5 syz-exec-24200 1.N.2 721523961us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529447us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529457us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529462us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529470us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529475us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529622us : 0: u000000005636d6d5 syz-exec-24200 1...2 721529931us : 0: 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u00000000e04b9681 syz-exec-24222 1.N.2 722210802us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215218us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215226us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215233us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215239us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215619us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215699us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215740us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215820us : 0: u00000000e04b9681 syz-exec-24222 1...2 722215898us : 0: u00000000e04b9681 syz-exec-24222 1...2 722216068us : 0: u00000000e04b9681 syz-exec-24222 1.N.2 722216607us : 0: u00000000e04b9681 syz-exec-24222 1...2 722219417us : 0: u00000000e04b9681 syz-exec-24222 1...2 722219868us : 0: u00000000e04b9681 syz-exec-24222 1...2 722219876us : 0: u00000000e04b9681 syz-exec-24222 1...2 722219882us : 0: u00000000e04b9681 syz-exec-24222 1...2 722219889us : 0: u00000000e04b9681 syz-exec-24222 1...2 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syz-exec-24222 1.N.2 722227245us : 0: u00000000e04b9681 --------------------------------- Kernel Offset: disabled Rebooting in 86400 seconds..