[info] Using makefile-style concurrent boot in runlevel 2. [ 26.756704] audit: type=1800 audit(1544552936.869:21): pid=5883 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts. syzkaller login: [ 48.846159] IPVS: ftp: loaded support on port[0] = 21 [ 49.012083] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.018900] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.026433] device bridge_slave_0 entered promiscuous mode [ 49.045619] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.052326] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.059300] device bridge_slave_1 entered promiscuous mode [ 49.078709] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 49.097673] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 49.150246] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.171025] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.252194] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.259497] team0: Port device team_slave_0 added [ 49.277892] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.285236] team0: Port device team_slave_1 added [ 49.304274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.326797] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.345535] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.366439] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 49.524775] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.531469] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.538532] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.544997] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 50.085824] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.143411] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.196342] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 50.202564] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 50.209704] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.262323] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 50.560339] Started in network mode [ 50.564410] Own node identity ac14141a, cluster identity 4711 [ 50.570597] kasan: CONFIG_KASAN_INLINE enabled [ 50.575401] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.582898] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.589130] CPU: 1 PID: 6041 Comm: syz-executor131 Not tainted 4.20.0-rc6+ #338 [ 50.596556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.606018] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 [ 50.611211] Code: 00 00 e8 39 1b 99 fa 48 8b 85 d0 fe ff ff 48 83 c0 60 48 89 c2 48 89 85 c0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 32 09 00 00 48 8b 85 d0 fe ff ff 4c 8d ad 10 ff [ 50.630095] RSP: 0018:ffff8881c153ebc8 EFLAGS: 00010206 [ 50.635446] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e6703c [ 50.642703] RDX: 000000000000000c RSI: ffffffff86e66957 RDI: 0000000000000001 [ 50.650054] RBP: ffff8881c153ed18 R08: ffff8881cc6ea680 R09: ffffed103b5e5b5f [ 50.657310] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f [ 50.664563] R13: ffff8881c153efb4 R14: ffff8881c153efb4 R15: ffff8881c1b80e80 [ 50.671820] FS: 00000000022f8880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 50.680138] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.686007] CR2: 0000000020000080 CR3: 00000001c313f000 CR4: 00000000001406e0 [ 50.693265] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.700686] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.708039] Call Trace: [ 50.710623] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.716280] ? __ipv6_dev_mc_inc+0xc50/0xc50 [ 50.720677] ? cpus_read_unlock+0x8b/0xb0 [ 50.724910] ? static_key_slow_inc+0x1f/0x30 [ 50.729494] ? udp_encap_enable+0x15/0x20 [ 50.733663] ? setup_udp_tunnel_sock+0x47c/0x6f0 [ 50.738422] ? udp_tunnel_xmit_skb+0x320/0x320 [ 50.743095] ipv6_sock_mc_join+0x27/0x30 [ 50.747266] tipc_udp_enable+0x147b/0x1ee0 [ 50.751554] ? tipc_udp_recv+0xe20/0xe20 [ 50.755798] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 50.760985] ? tipc_udp_send_msg+0x680/0x680 [ 50.765458] ? save_stack+0xa9/0xd0 [ 50.769106] ? save_stack+0x43/0xd0 [ 50.772715] ? kasan_kmalloc+0xc7/0xe0 [ 50.776788] ? kmem_cache_alloc_trace+0x152/0x750 [ 50.781660] ? tipc_enable_bearer+0x90d/0xf10 [ 50.786202] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 50.791124] ? tipc_nl_bearer_enable+0x22/0x30 [ 50.795697] ? genl_rcv_msg+0xc6/0x168 [ 50.799575] ? netlink_rcv_skb+0x172/0x440 [ 50.803857] ? genl_rcv+0x28/0x40 [ 50.807542] ? netlink_unicast+0x5a5/0x760 [ 50.811758] ? netlink_sendmsg+0xa18/0xfc0 [ 50.815982] ? sock_sendmsg+0xd5/0x120 [ 50.819869] ? ___sys_sendmsg+0x7fd/0x930 [ 50.823997] ? __x64_sys_sendmsg+0x78/0xb0 [ 50.828228] ? do_syscall_64+0x1b9/0x820 [ 50.832276] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.837631] ? mark_held_locks+0x130/0x130 [ 50.841853] ? zap_class+0x640/0x640 [ 50.845552] ? check_preemption_disabled+0x48/0x280 [ 50.850684] ? tipc_enable_bearer+0x90d/0xf10 [ 50.855165] ? rcu_read_lock_sched_held+0x14f/0x180 [ 50.860174] tipc_enable_bearer+0x9a6/0xf10 [ 50.864491] ? tipc_udp_recv+0xe20/0xe20 [ 50.868537] ? tipc_enable_bearer+0x9a6/0xf10 [ 50.873019] ? tipc_bearer_xmit_skb+0x350/0x350 [ 50.877679] ? nla_memcmp+0x90/0x90 [ 50.881295] ? lock_release+0xa00/0xa00 [ 50.885253] ? perf_trace_sched_process_exec+0x860/0x860 [ 50.890691] ? mark_held_locks+0x130/0x130 [ 50.894937] ? check_preemption_disabled+0x48/0x280 [ 50.899962] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.905484] ? __nla_parse+0x12c/0x3e0 [ 50.909358] ? nla_parse+0x46/0x60 [ 50.912885] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 50.917635] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 50.922547] ? tipc_nl_bearer_disable+0x30/0x30 [ 50.927209] tipc_nl_bearer_enable+0x22/0x30 [ 50.931605] genl_family_rcv_msg+0x8a7/0x11a0 [ 50.936087] ? genl_unregister_family+0x8a0/0x8a0 [ 50.940926] ? lock_downgrade+0x900/0x900 [ 50.945060] ? check_preemption_disabled+0x48/0x280 [ 50.950072] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 50.954992] ? kasan_check_read+0x11/0x20 [ 50.959128] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 50.964503] ? rcu_softirq_qs+0x20/0x20 [ 50.968581] genl_rcv_msg+0xc6/0x168 [ 50.972285] netlink_rcv_skb+0x172/0x440 [ 50.976350] ? genl_family_rcv_msg+0x11a0/0x11a0 [ 50.981104] ? netlink_ack+0xb80/0xb80 [ 50.985105] ? down_read+0x8d/0x120 [ 50.988723] genl_rcv+0x28/0x40 [ 50.991984] netlink_unicast+0x5a5/0x760 [ 50.996030] ? netlink_attachskb+0x9a0/0x9a0 [ 51.000426] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.006064] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.011069] netlink_sendmsg+0xa18/0xfc0 [ 51.015132] ? netlink_unicast+0x760/0x760 [ 51.019354] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 51.024383] ? apparmor_socket_sendmsg+0x29/0x30 [ 51.029133] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.034764] ? security_socket_sendmsg+0x94/0xc0 [ 51.039508] ? netlink_unicast+0x760/0x760 [ 51.043732] sock_sendmsg+0xd5/0x120 [ 51.047431] ___sys_sendmsg+0x7fd/0x930 [ 51.051400] ? copy_msghdr_from_user+0x580/0x580 [ 51.056148] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 51.061699] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.067236] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.072756] ? __fget_light+0x2e9/0x430 [ 51.076821] ? fget_raw+0x20/0x20 [ 51.080272] ? task_work_run+0x1af/0x2a0 [ 51.084319] ? _raw_spin_unlock_irq+0x27/0x80 [ 51.088796] ? _raw_spin_unlock_irq+0x27/0x80 [ 51.093278] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 51.097980] ? trace_hardirqs_on+0xbd/0x310 [ 51.102289] ? kasan_check_read+0x11/0x20 [ 51.106425] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.111953] ? sockfd_lookup_light+0xc5/0x160 [ 51.116438] __sys_sendmsg+0x11d/0x280 [ 51.120383] ? __ia32_sys_shutdown+0x80/0x80 [ 51.124789] ? do_syscall_64+0x6be/0x820 [ 51.128854] ? trace_hardirqs_on+0x310/0x310 [ 51.133263] ? do_syscall_64+0x9a/0x820 [ 51.137219] ? do_syscall_64+0x9a/0x820 [ 51.141222] ? trace_hardirqs_off_caller+0x310/0x310 [ 51.146323] __x64_sys_sendmsg+0x78/0xb0 [ 51.150375] do_syscall_64+0x1b9/0x820 [ 51.154389] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 51.159751] ? syscall_return_slowpath+0x5e0/0x5e0 [ 51.164691] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.169563] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.174569] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.179571] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.184577] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.189412] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.194663] RIP: 0033:0x445c49 [ 51.197868] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.216758] RSP: 002b:00007fffbe953868 EFLAGS: 00000213 ORIG_RAX: 000000000000002e [ 51.224584] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000445c49 [ 51.231837] RDX: 000000000000c000 RSI: 0000000020000c00 RDI: 0000000000000003 [ 51.239087] RBP: 00000000006d1018 R08: 0000000000000000 R09: 0000000000000100 [ 51.246337] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000402fd0 [ 51.253586] R13: 0000000000403060 R14: 0000000000000000 R15: 0000000000000000 [ 51.260839] Modules linked in: [ 51.265707] ---[ end trace 3dddf697d1d075c7 ]--- [ 51.270478] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 [ 51.275767] Code: 00 00 e8 39 1b 99 fa 48 8b 85 d0 fe ff ff 48 83 c0 60 48 89 c2 48 89 85 c0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 32 09 00 00 48 8b 85 d0 fe ff ff 4c 8d ad 10 ff [ 51.294692] RSP: 0018:ffff8881c153ebc8 EFLAGS: 00010206 [ 51.300038] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e6703c [ 51.307325] RDX: 000000000000000c RSI: ffffffff86e66957 RDI: 0000000000000001 [ 51.314625] RBP: ffff8881c153ed18 R08: ffff8881cc6ea680 R09: ffffed103b5e5b5f [ 51.321944] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f [ 51.329227] R13: ffff8881c153efb4 R14: ffff8881c153efb4 R15: ffff8881c1b80e80 [ 51.336520] FS: 00000000022f8880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 51.344817] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.350686] CR2: 0000000020000080 CR3: 00000001c313f000 CR4: 00000000001406e0 [ 51.358407] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.365722] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.373008] Kernel panic - not syncing: Fatal exception [ 51.379292] Kernel Offset: disabled [ 51.382914] Rebooting in 86400 seconds..