[ 29.178479] audit: type=1800 audit(1544557460.065:27): pid=5899 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 29.210728] audit: type=1800 audit(1544557460.075:28): pid=5899 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 30.090400] audit: type=1800 audit(1544557461.045:29): pid=5899 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 30.110563] audit: type=1800 audit(1544557461.045:30): pid=5899 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.75' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 syzkaller login: [ 852.349371] IPVS: ftp: loaded support on port[0] = 21 [ 852.606399] bridge0: port 1(bridge_slave_0) entered blocking state [ 852.613330] bridge0: port 1(bridge_slave_0) entered disabled state [ 852.620633] device bridge_slave_0 entered promiscuous mode [ 852.640257] bridge0: port 2(bridge_slave_1) entered blocking state [ 852.647089] bridge0: port 2(bridge_slave_1) entered disabled state [ 852.654014] device bridge_slave_1 entered promiscuous mode [ 852.672667] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 852.691024] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 852.743473] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 852.765571] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 852.844115] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 852.851432] team0: Port device team_slave_0 added [ 852.869918] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 852.877206] team0: Port device team_slave_1 added [ 852.894937] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 852.914106] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 852.933272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 852.952167] 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 [ 853.103579] bridge0: port 2(bridge_slave_1) entered blocking state [ 853.110203] bridge0: port 2(bridge_slave_1) entered forwarding state [ 853.117284] bridge0: port 1(bridge_slave_0) entered blocking state [ 853.123650] 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 [ 853.677368] 8021q: adding VLAN 0 to HW filter on device bond0 [ 853.732300] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 853.786303] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 853.792414] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 853.799673] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 853.849873] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 854.190680] Started in network mode [ 854.194518] Own node identity ac1414bb, cluster identity 4711 [ 854.201204] New replicast peer: 255.255.255.255 [ 854.206647] Enabled bearer , priority 10 [ 854.213601] Enabling of bearer rejected, already enabled [ 854.545333] kasan: CONFIG_KASAN_INLINE enabled [ 854.550056] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 854.557549] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 854.563783] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.20.0-rc6+ #274 [ 854.570428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 854.579787] RIP: 0010:dst_dev_put+0x24/0x290 [ 854.584178] Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 fd ed 4d fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e3 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 [ 854.603062] RSP: 0018:ffff8881daf07658 EFLAGS: 00010246 [ 854.608434] RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffffff86b6790f [ 854.615718] RDX: 0000000000000000 RSI: ffffffff86319673 RDI: 0000000000000003 [ 854.622966] RBP: ffff8881daf07678 R08: ffff8881d9b14340 R09: 0000000000000008 [ 854.630214] R10: 0000000000000000 R11: ffff8881d9b14340 R12: dffffc0000000000 [ 854.637463] R13: 0000000000000000 R14: 0000000000000003 R15: 0000607e24e2cff0 [ 854.644729] FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 854.652940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 854.658815] CR2: 00000000f7f9af0c CR3: 00000001c48c9000 CR4: 00000000001406e0 [ 854.666075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 854.673322] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 854.680571] Call Trace: [ 854.683129] [ 854.685335] free_fib_info_rcu+0x2e1/0x490 [ 854.689561] ? fib_detect_death+0x240/0x240 [ 854.693875] rcu_process_callbacks+0x100a/0x1ac0 [ 854.698629] ? rcu_note_context_switch+0x2150/0x2150 [ 854.703756] ? find_held_lock+0x36/0x1c0 [ 854.707804] ? rebalance_domains+0x358/0xdc0 [ 854.712194] ? lock_downgrade+0x900/0x900 [ 854.716338] ? check_preemption_disabled+0x48/0x280 [ 854.721360] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 854.726276] ? kasan_check_read+0x11/0x20 [ 854.730405] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 854.735662] ? rcu_softirq_qs+0x20/0x20 [ 854.739615] ? rebalance_domains+0x375/0xdc0 [ 854.744008] ? load_balance+0x39a0/0x39a0 [ 854.748138] ? enqueue_hrtimer+0x1a5/0x560 [ 854.752360] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 854.757535] ? find_held_lock+0x36/0x1c0 [ 854.761597] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 854.767133] ? check_preemption_disabled+0x48/0x280 [ 854.772133] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 854.777649] ? check_preemption_disabled+0x48/0x280 [ 854.782652] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 854.788173] ? rcu_pm_notify+0xc0/0xc0 [ 854.792044] __do_softirq+0x308/0xb7e [ 854.795834] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 854.800313] ? lock_downgrade+0x900/0x900 [ 854.804440] ? __irqentry_text_end+0x1f9658/0x1f9658 [ 854.809534] ? pvclock_read_flags+0x160/0x160 [ 854.814009] ? lapic_next_event+0x5a/0x90 [ 854.818139] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 854.823657] ? kvm_clock_read+0x18/0x30 [ 854.827612] ? kvm_sched_clock_read+0x9/0x20 [ 854.832001] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 854.837521] ? check_preemption_disabled+0x48/0x280 [ 854.842550] irq_exit+0x17f/0x1c0 [ 854.845987] smp_apic_timer_interrupt+0x1cb/0x760 [ 854.850832] ? smp_reschedule_interrupt+0x109/0x650 [ 854.855842] ? smp_call_function_single_interrupt+0x650/0x650 [ 854.861713] ? interrupt_entry+0xb5/0xc0 [ 854.865769] ? trace_hardirqs_off_caller+0xbb/0x310 [ 854.870765] ? trace_hardirqs_off_caller+0xbb/0x310 [ 854.875778] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 854.880603] ? trace_hardirqs_on_caller+0x310/0x310 [ 854.885601] ? trace_hardirqs_on_caller+0x310/0x310 [ 854.890596] ? task_prio+0x50/0x50 [ 854.894119] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 854.899638] ? check_preemption_disabled+0x48/0x280 [ 854.904637] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 854.909461] apic_timer_interrupt+0xf/0x20 [ 854.913673] [ 854.915893] RIP: 0010:native_safe_halt+0x6/0x10 [ 854.920542] Code: e9 2c ff ff ff 48 89 c7 48 89 45 d8 e8 c3 f0 e7 f9 48 8b 45 d8 e9 ca fe ff ff 48 89 df e8 b2 f0 e7 f9 eb 82 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90 [ 854.939428] RSP: 0018:ffff8881d9b27cb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 854.947117] RAX: dffffc0000000000 RBX: 1ffff1103b364f9b RCX: 0000000000000000 [ 854.954398] RDX: 1ffffffff12a4021 RSI: 0000000000000001 RDI: ffffffff89520108 [ 854.961662] RBP: ffff8881d9b27cb8 R08: ffff8881d9b14340 R09: 0000000000000000 [ 854.968912] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d9b27d78 [ 854.976162] R13: ffffffff8a163e20 R14: 0000000000000000 R15: 0000000000000001 [ 854.983431] default_idle+0xbf/0x490 [ 854.987132] ? rcu_dynticks_eqs_enter+0x4f/0x80 [ 854.991783] ? __sched_text_end+0x1/0x1 [ 854.995739] ? rcu_idle_enter+0x39a/0x530 [ 854.999895] ? rcu_eqs_special_set+0x1c0/0x1c0 [ 855.004478] ? tsc_verify_tsc_adjust+0x137/0x450 [ 855.009215] ? trace_hardirqs_off_caller+0x310/0x310 [ 855.014314] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 855.019897] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 855.025415] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 855.030970] arch_cpu_idle+0x10/0x20 [ 855.034665] default_idle_call+0x6d/0x90 [ 855.038709] do_idle+0x49b/0x5c0 [ 855.042056] ? arch_cpu_idle_exit+0x70/0x70 [ 855.046361] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 855.051459] ? complete+0x62/0x80 [ 855.054893] cpu_startup_entry+0x18/0x20 [ 855.058948] start_secondary+0x487/0x5f0 [ 855.062991] ? set_cpu_sibling_map+0x1890/0x1890 [ 855.067731] secondary_startup_64+0xa4/0xb0 [ 855.072034] Modules linked in: [ 855.075289] ---[ end trace e9f4ee7f17a70695 ]--- [ 855.080065] RIP: 0010:dst_dev_put+0x24/0x290 [ 855.084455] Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 fd ed 4d fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e3 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 [ 855.103404] RSP: 0018:ffff8881daf07658 EFLAGS: 00010246 [ 855.108795] RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffffff86b6790f [ 855.116077] RDX: 0000000000000000 RSI: ffffffff86319673 RDI: 0000000000000003 [ 855.123344] RBP: ffff8881daf07678 R08: ffff8881d9b14340 R09: 0000000000000008 [ 855.130634] R10: 0000000000000000 R11: ffff8881d9b14340 R12: dffffc0000000000 [ 855.137923] R13: 0000000000000000 R14: 0000000000000003 R15: 0000607e24e2cff0 [ 855.145176] FS: 0000000000000000(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 [ 855.153431] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 855.159321] CR2: 00000000f7f9af0c CR3: 00000001c48c9000 CR4: 00000000001406e0 [ 855.166609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 855.173874] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 855.181154] Kernel panic - not syncing: Fatal exception in interrupt [ 855.188655] Kernel Offset: disabled [ 855.192276] Rebooting in 86400 seconds..