[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [ 25.975940] audit: type=1800 audit(1544479032.214:21): pid=5826 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.32' (ECDSA) to the list of known hosts. syzkaller login: [ 44.511394] IPVS: ftp: loaded support on port[0] = 21 [ 44.671261] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.678290] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.685614] device bridge_slave_0 entered promiscuous mode [ 44.704524] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.711025] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.717946] device bridge_slave_1 entered promiscuous mode [ 44.737874] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.755988] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.810013] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.831909] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.906366] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.914064] team0: Port device team_slave_0 added [ 44.931293] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.938962] team0: Port device team_slave_1 added [ 44.958734] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.978456] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.997784] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.018313] 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 [ 45.169611] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.176038] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.183101] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.189470] 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 [ 45.693503] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.745937] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.797167] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.803467] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.813458] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.856918] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 46.137749] Started in network mode [ 46.142433] Own node identity ac14141a, cluster identity 4711 [ 46.148952] kasan: CONFIG_KASAN_INLINE enabled [ 46.153590] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 46.161477] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 46.167771] CPU: 1 PID: 5983 Comm: syz-executor534 Not tainted 4.20.0-rc6+ #273 [ 46.175217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.184566] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 [ 46.189741] Code: 00 00 e8 a9 31 9b 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 [ 46.208707] RSP: 0018:ffff8881b536eb78 EFLAGS: 00010206 [ 46.214062] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e459ac [ 46.221314] RDX: 000000000000000c RSI: ffffffff86e452c7 RDI: 0000000000000001 [ 46.228622] RBP: ffff8881b536ecc8 R08: ffff8881c2ee2300 R09: ffffed103b5e5b5f [ 46.235999] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f [ 46.243265] R13: ffff8881b536ef64 R14: ffff8881b536ef64 R15: ffff8881c30e4e80 [ 46.250580] FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:0000000009ddf840 [ 46.258805] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 46.264673] CR2: 0000000009ddf8c4 CR3: 00000001c2e6b000 CR4: 00000000001406e0 [ 46.271933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.279186] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.286446] Call Trace: [ 46.289137] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.294661] ? __ipv6_dev_mc_inc+0xc50/0xc50 [ 46.299056] ? cpus_read_unlock+0x8b/0xb0 [ 46.303201] ? static_key_enable+0x1f/0x30 [ 46.307422] ? udp_encap_enable+0x15/0x20 [ 46.311558] ? setup_udp_tunnel_sock+0x3ac/0x5e0 [ 46.316298] ? udp_tunnel_xmit_skb+0x320/0x320 [ 46.320865] ipv6_sock_mc_join+0x27/0x30 [ 46.325002] tipc_udp_enable+0x1476/0x1ed0 [ 46.329314] ? tipc_udp_recv+0xe20/0xe20 [ 46.333369] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 46.338464] ? tipc_udp_send_msg+0x670/0x670 [ 46.342863] ? save_stack+0xa9/0xd0 [ 46.350140] ? save_stack+0x43/0xd0 [ 46.353770] ? kasan_kmalloc+0xc7/0xe0 [ 46.357654] ? kmem_cache_alloc_trace+0x152/0x750 [ 46.362492] ? tipc_enable_bearer+0x90d/0xf10 [ 46.366975] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 46.371890] ? tipc_nl_bearer_enable+0x22/0x30 [ 46.376466] ? genl_rcv_msg+0xc6/0x168 [ 46.380401] ? netlink_rcv_skb+0x172/0x440 [ 46.384637] ? genl_rcv+0x28/0x40 [ 46.388091] ? netlink_unicast+0x5a5/0x760 [ 46.392312] ? netlink_sendmsg+0xa18/0xfc0 [ 46.396529] ? sock_sendmsg+0xd5/0x120 [ 46.400401] ? ___sys_sendmsg+0x7fd/0x930 [ 46.404632] ? __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 46.409563] ? do_fast_syscall_32+0x34d/0xfb2 [ 46.414123] ? entry_SYSENTER_compat+0x70/0x7f [ 46.418704] ? __lock_acquire+0x62f/0x4c20 [ 46.427667] ? mark_held_locks+0x130/0x130 [ 46.431897] ? zap_class+0x640/0x640 [ 46.435604] ? check_preemption_disabled+0x48/0x280 [ 46.440786] ? tipc_enable_bearer+0x90d/0xf10 [ 46.445282] ? rcu_read_lock_sched_held+0x14f/0x180 [ 46.450304] tipc_enable_bearer+0x9a6/0xf10 [ 46.454622] ? tipc_udp_recv+0xe20/0xe20 [ 46.458690] ? tipc_enable_bearer+0x9a6/0xf10 [ 46.463182] ? tipc_bearer_xmit_skb+0x350/0x350 [ 46.467844] ? nla_memcmp+0x90/0x90 [ 46.471465] ? lock_release+0xa00/0xa00 [ 46.475426] ? perf_trace_sched_process_exec+0x860/0x860 [ 46.480872] ? mark_held_locks+0x130/0x130 [ 46.485116] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.490642] ? __nla_parse+0x12c/0x3e0 [ 46.494613] ? nla_parse+0x46/0x60 [ 46.498154] __tipc_nl_bearer_enable+0x37c/0x4a0 [ 46.503016] ? __tipc_nl_bearer_enable+0x37c/0x4a0 [ 46.508866] ? tipc_nl_bearer_disable+0x30/0x30 [ 46.513528] tipc_nl_bearer_enable+0x22/0x30 [ 46.517927] genl_family_rcv_msg+0x8a7/0x11a0 [ 46.522413] ? genl_unregister_family+0x8a0/0x8a0 [ 46.527252] ? lock_downgrade+0x900/0x900 [ 46.531388] ? check_preemption_disabled+0x48/0x280 [ 46.536549] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 46.541475] ? kasan_check_read+0x11/0x20 [ 46.545613] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 46.550874] ? rcu_softirq_qs+0x20/0x20 [ 46.554967] genl_rcv_msg+0xc6/0x168 [ 46.559350] netlink_rcv_skb+0x172/0x440 [ 46.563401] ? genl_family_rcv_msg+0x11a0/0x11a0 [ 46.568156] ? netlink_ack+0xb80/0xb80 [ 46.572054] ? down_read+0x8d/0x120 [ 46.575680] genl_rcv+0x28/0x40 [ 46.578943] netlink_unicast+0x5a5/0x760 [ 46.583513] ? netlink_attachskb+0x9a0/0x9a0 [ 46.587923] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.596733] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 46.601754] netlink_sendmsg+0xa18/0xfc0 [ 46.605971] ? netlink_unicast+0x760/0x760 [ 46.610233] ? aa_sock_msg_perm.isra.14+0xba/0x160 [ 46.615289] ? apparmor_socket_sendmsg+0x29/0x30 [ 46.620055] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.625582] ? security_socket_sendmsg+0x94/0xc0 [ 46.630446] ? netlink_unicast+0x760/0x760 [ 46.634673] sock_sendmsg+0xd5/0x120 [ 46.638372] ___sys_sendmsg+0x7fd/0x930 [ 46.642335] ? copy_msghdr_from_user+0x580/0x580 [ 46.647082] ? blkcg_maybe_throttle_current+0xa38/0x1080 [ 46.652624] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.658153] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.663683] ? __fget_light+0x2e9/0x430 [ 46.667644] ? fget_raw+0x20/0x20 [ 46.671084] ? task_work_run+0x1af/0x2a0 [ 46.675135] ? _raw_spin_unlock_irq+0x27/0x80 [ 46.679621] ? _raw_spin_unlock_irq+0x27/0x80 [ 46.684100] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 46.688665] ? trace_hardirqs_on+0xbd/0x310 [ 46.693113] ? kasan_check_read+0x11/0x20 [ 46.697260] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.702901] ? sockfd_lookup_light+0xc5/0x160 [ 46.707391] __sys_sendmsg+0x11d/0x280 [ 46.711266] ? __ia32_sys_shutdown+0x80/0x80 [ 46.715669] ? do_fast_syscall_32+0xcd5/0xfb2 [ 46.720153] ? trace_hardirqs_on+0x310/0x310 [ 46.724694] ? do_fast_syscall_32+0x150/0xfb2 [ 46.729185] ? do_fast_syscall_32+0x150/0xfb2 [ 46.733675] ? trace_hardirqs_off_caller+0x310/0x310 [ 46.738764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.744289] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 46.749031] do_fast_syscall_32+0x34d/0xfb2 [ 46.753432] ? do_int80_syscall_32+0x890/0x890 [ 46.758158] ? entry_SYSENTER_compat+0x68/0x7f [ 46.762929] ? trace_hardirqs_off_caller+0xbb/0x310 [ 46.768015] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.772859] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.777693] ? trace_hardirqs_on_caller+0x310/0x310 [ 46.782699] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 46.787706] ? prepare_exit_to_usermode+0x291/0x3b0 [ 46.792712] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.797560] entry_SYSENTER_compat+0x70/0x7f [ 46.801961] RIP: 0023:0xf7f94a29 [ 46.805325] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 46.824277] RSP: 002b:00000000ff93252c EFLAGS: 00000246 ORIG_RAX: 0000000000000172 [ 46.831992] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000c00 [ 46.839313] RDX: 000000000000c000 RSI: 00000000ff93259e RDI: 0000000000000001 [ 46.846811] RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000000 [ 46.854072] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 46.861389] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 46.868661] Modules linked in: [ 46.873431] ---[ end trace a003b3aace9a6552 ]--- [ 46.878256] RIP: 0010:__ipv6_sock_mc_join+0x24a/0xc10 [ 46.883450] Code: 00 00 e8 a9 31 9b 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 [ 46.903201] RSP: 0018:ffff8881b536eb78 EFLAGS: 00010206 [ 46.912863] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff86e459ac [ 46.922578] RDX: 000000000000000c RSI: ffffffff86e452c7 RDI: 0000000000000001 [ 46.930578] RBP: ffff8881b536ecc8 R08: ffff8881c2ee2300 R09: ffffed103b5e5b5f [ 46.937842] R10: ffffed103b5e5b5f R11: ffff8881daf2dafb R12: 000000000000000f [ 46.945151] R13: ffff8881b536ef64 R14: ffff8881b536ef64 R15: ffff8881c30e4e80 [ 46.952547] FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:0000000009ddf840 [ 46.960991] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 46.966877] CR2: 0000000009ddf8c4 CR3: 00000001c2e6b000 CR4: 00000000001406e0 [ 46.974592] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.981886] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.989501] Kernel panic - not syncing: Fatal exception [ 46.996058] Kernel Offset: disabled [ 46.999684] Rebooting in 86400 seconds..