[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 17.824934] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.793758] random: sshd: uninitialized urandom read (32 bytes read) [ 22.150898] random: sshd: uninitialized urandom read (32 bytes read) [ 22.857488] random: sshd: uninitialized urandom read (32 bytes read) [ 22.991430] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.60' (ECDSA) to the list of known hosts. [ 28.769238] random: sshd: uninitialized urandom read (32 bytes read) [ 28.849872] IPVS: ftp: loaded support on port[0] = 21 [ 28.944625] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.951117] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.958133] device bridge_slave_0 entered promiscuous mode [ 28.971167] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.977550] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.984367] device bridge_slave_1 entered promiscuous mode [ 28.997419] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 29.011622] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 29.046752] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 29.063013] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 29.115559] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 29.122654] team0: Port device team_slave_0 added [ 29.135700] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 29.142929] team0: Port device team_slave_1 added [ 29.156153] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 29.170379] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 29.185572] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 29.201846] 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 [ 29.298259] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.304708] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.311318] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.317683] 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 [ 29.653151] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 29.659287] 8021q: adding VLAN 0 to HW filter on device bond0 [ 29.691641] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 29.724718] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.731816] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 29.764517] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 29.770661] 8021q: adding VLAN 0 to HW filter on device team0 [ 29.911223] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 29.951054] kasan: CONFIG_KASAN_INLINE enabled [ 29.955711] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.963072] general protection fault: 0000 [#1] SMP KASAN [ 29.968596] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.18.0-rc3+ #51 [ 29.975156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.984506] RIP: 0010:propagate_entity_cfs_rq.isra.70+0x199/0x20c0 [ 29.990965] Code: 0d 02 00 00 48 c7 c0 60 70 2a 89 48 89 f9 48 c1 e8 03 48 01 d8 48 89 85 28 fb ff ff 4c 8d a9 58 01 00 00 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 5e 11 00 00 4c 8b a1 58 01 00 00 0f 1f 44 00 00 [ 30.010175] RSP: 0018:ffff8801daf06c90 EFLAGS: 00010003 [ 30.015537] RAX: 03fffe20074fc1d0 RBX: dffffc0000000000 RCX: 1ffff1003a7e0d2c [ 30.022803] RDX: 1ffff1003a7e0d2a RSI: 1ffff1003b5e0e7f RDI: 1ffff1003a7e0d2c [ 30.030088] RBP: ffff8801daf071a0 R08: ffff8801dae2cbc0 R09: 1ffffffff11a25cc [ 30.037341] R10: 00000000019d6e0b R11: 0000000000000000 R12: 1ffff1003b5e0e3b [ 30.044602] R13: 1ffff1003a7e0e84 R14: ffff8801d3f06800 R15: 0000000000000000 [ 30.051879] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 30.060101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.065986] CR2: 00007fb1b24d7e78 CR3: 00000001ab04b000 CR4: 00000000001406e0 [ 30.073251] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.080504] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.087758] Call Trace: [ 30.090333] [ 30.092473] ? select_task_rq_fair+0x32a0/0x32a0 [ 30.097239] ? get_stack_info+0x37/0x142 [ 30.101286] ? update_stack_state+0x1a5/0x690 [ 30.105814] ? trace_hardirqs_on+0x10/0x10 [ 30.110054] ? unwind_dump+0x190/0x190 [ 30.113929] ? lock_acquire+0x1e4/0x540 [ 30.117895] ? cpuacct_charge+0x2eb/0x5d0 [ 30.122046] ? lock_downgrade+0x8f0/0x8f0 [ 30.126172] ? unwind_dump+0x190/0x190 [ 30.130198] ? lock_release+0xa30/0xa30 [ 30.134152] ? unwind_dump+0x190/0x190 [ 30.138024] ? lock_acquire+0x1e4/0x540 [ 30.141978] ? update_curr+0x4c8/0xc00 [ 30.145852] ? lock_downgrade+0x8f0/0x8f0 [ 30.149985] ? lock_release+0xa30/0xa30 [ 30.153943] ? cpuacct_charge+0x30a/0x5d0 [ 30.158077] ? cpuacct_css_alloc+0x160/0x160 [ 30.162476] ? update_curr+0x4e7/0xc00 [ 30.166363] ? __account_cfs_rq_runtime+0x600/0x600 [ 30.171367] ? account_entity_dequeue+0x3c3/0x800 [ 30.176208] ? reweight_entity+0x1100/0x1100 [ 30.180608] ? trace_hardirqs_on+0x10/0x10 [ 30.184846] detach_entity_cfs_rq+0x6e3/0xf50 [ 30.189335] ? switched_to_fair+0xa0/0xa0 [ 30.193470] ? __debug_object_init+0x581/0x12e0 [ 30.198125] ? update_stack_state+0x1a5/0x690 [ 30.202609] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 30.207629] ? trace_hardirqs_on+0x10/0x10 [ 30.211864] ? is_bpf_text_address+0xae/0x170 [ 30.216749] ? lock_downgrade+0x8f0/0x8f0 [ 30.220886] ? dequeue_task_fair+0xf2/0x9e0 [ 30.225191] ? dequeue_entity+0x15e0/0x15e0 [ 30.229503] migrate_task_rq_fair+0xba/0x290 [ 30.233939] set_task_cpu+0x131/0x770 [ 30.237728] ? select_fallback_rq+0x330/0x330 [ 30.242206] ? can_migrate_task+0x527/0x17c0 [ 30.246601] ? kvm_clock_read+0x25/0x30 [ 30.250564] detach_task.isra.89+0xdb/0x150 [ 30.254870] load_balance+0xf0b/0x3640 [ 30.258745] ? trace_hardirqs_on+0x10/0x10 [ 30.262992] ? find_busiest_group+0x1cb0/0x1cb0 [ 30.267663] ? update_blocked_averages+0xcee/0x1770 [ 30.272680] ? lock_downgrade+0x8f0/0x8f0 [ 30.276838] ? lock_repin_lock+0x430/0x430 [ 30.281062] ? trace_hardirqs_on+0xd/0x10 [ 30.285194] ? update_blocked_averages+0xcee/0x1770 [ 30.290200] ? lock_acquire+0x1e4/0x540 [ 30.294161] ? __run_timers+0xa09/0xc70 [ 30.298129] ? lock_acquire+0x1e4/0x540 [ 30.302091] ? rebalance_domains+0x135/0xd90 [ 30.306498] ? lock_release+0xa30/0xa30 [ 30.310470] ? kasan_check_write+0x14/0x20 [ 30.314692] ? do_raw_spin_lock+0xc1/0x200 [ 30.318922] ? trace_hardirqs_on+0xd/0x10 [ 30.323064] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.327543] ? __run_timers+0xa37/0xc70 [ 30.331503] rebalance_domains+0x82a/0xd90 [ 30.335733] ? load_balance+0x3640/0x3640 [ 30.339866] ? enqueue_hrtimer+0x18e/0x540 [ 30.344083] ? hrtimer_update_softirq_timer+0xa0/0xa0 [ 30.349255] ? do_raw_spin_unlock+0xa7/0x2f0 [ 30.353665] ? kasan_check_write+0x14/0x20 [ 30.357895] ? do_raw_spin_lock+0xc1/0x200 [ 30.362115] run_rebalance_domains+0x365/0x4c0 [ 30.366693] ? _nohz_idle_balance+0x820/0x820 [ 30.371173] ? pvclock_read_flags+0x160/0x160 [ 30.375661] ? hrtimer_start_range_ns+0xd20/0xd20 [ 30.380491] __do_softirq+0x2e8/0xb17 [ 30.384270] ? __irqentry_text_end+0x1f97a8/0x1f97a8 [ 30.389367] ? kasan_check_read+0x11/0x20 [ 30.393508] ? do_raw_spin_unlock+0xa7/0x2f0 [ 30.397898] ? native_apic_msr_write+0x5b/0x80 [ 30.402466] ? lapic_next_event+0x5a/0x90 [ 30.406617] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.412139] ? clockevents_program_event+0x140/0x370 [ 30.417226] ? tick_program_event+0xb2/0x130 [ 30.421625] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 30.427143] ? hrtimer_interrupt+0x57e/0x750 [ 30.431546] irq_exit+0x1d1/0x200 [ 30.434997] smp_apic_timer_interrupt+0x186/0x730 [ 30.439827] ? smp_call_function_single_interrupt+0x660/0x660 [ 30.445687] ? _raw_spin_unlock+0x22/0x30 [ 30.449816] ? handle_edge_irq+0x330/0x870 [ 30.454029] ? task_prio+0x50/0x50 [ 30.457551] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.462372] apic_timer_interrupt+0xf/0x20 [ 30.466579] [ 30.468796] RIP: 0010:native_safe_halt+0x6/0x10 [ 30.473448] Code: c7 48 89 45 d8 e8 5a 04 24 fa 48 8b 45 d8 e9 d2 fe ff ff 48 89 df e8 49 04 24 fa eb 8a 90 90 90 90 90 90 90 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 [ 30.492581] RSP: 0018:ffff8801d9af7c38 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 30.500284] RAX: dffffc0000000000 RBX: 1ffff1003b35ef8a RCX: ffffffff81667982 [ 30.507632] RDX: 1ffffffff11e3610 RSI: 0000000000000004 RDI: ffffffff88f1b080 [ 30.514882] RBP: ffff8801d9af7c38 R08: ffffed003b5e46d7 R09: ffffed003b5e46d6 [ 30.522134] R10: ffffed003b5e46d6 R11: ffff8801daf236b3 R12: 0000000000000001 [ 30.529386] R13: ffff8801d9af7cf0 R14: ffffffff899edd20 R15: 0000000000000000 [ 30.536665] ? rcu_dynticks_eqs_enter+0x22/0x30 [ 30.541320] ? trace_hardirqs_on+0xd/0x10 [ 30.545465] default_idle+0xc7/0x450 [ 30.549161] ? __sched_text_end+0x3/0x3 [ 30.553128] ? rcu_idle_enter+0x30a/0x480 [ 30.557265] ? rcu_eqs_special_set+0x1b0/0x1b0 [ 30.561829] ? tsc_verify_tsc_adjust+0x109/0x380 [ 30.566565] ? mark_tsc_async_resets+0x20/0x20 [ 30.571129] ? sched_set_stop_task+0x290/0x290 [ 30.575702] ? update_ts_time_stats+0xb3/0x1e0 [ 30.580284] arch_cpu_idle+0x10/0x20 [ 30.584235] default_idle_call+0x6d/0x90 [ 30.588286] do_idle+0x3aa/0x570 [ 30.591647] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 30.596761] ? arch_cpu_idle_exit+0x70/0x70 [ 30.601109] ? trace_hardirqs_on+0xd/0x10 [ 30.605262] ? complete+0x62/0x80 [ 30.608714] cpu_startup_entry+0x10c/0x120 [ 30.612939] ? cpu_in_idle+0x20/0x20 [ 30.616668] start_secondary+0x433/0x5d0 [ 30.620747] ? set_cpu_sibling_map+0x18b0/0x18b0 [ 30.625503] secondary_startup_64+0xa5/0xb0 [ 30.629813] Modules linked in: [ 30.633006] Dumping ftrace buffer: [ 30.636549] (ftrace buffer empty) [ 30.640256] ---[ end trace cb0cd83b57bb4bba ]--- [ 30.645019] RIP: 0010:propagate_entity_cfs_rq.isra.70+0x199/0x20c0 [ 30.651319] Code: 0d 02 00 00 48 c7 c0 60 70 2a 89 48 89 f9 48 c1 e8 03 48 01 d8 48 89 85 28 fb ff ff 4c 8d a9 58 01 00 00 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 5e 11 00 00 4c 8b a1 58 01 00 00 0f 1f 44 00 00 [ 30.670461] RSP: 0018:ffff8801daf06c90 EFLAGS: 00010003 [ 30.675810] RAX: 03fffe20074fc1d0 RBX: dffffc0000000000 RCX: 1ffff1003a7e0d2c [ 30.683070] RDX: 1ffff1003a7e0d2a RSI: 1ffff1003b5e0e7f RDI: 1ffff1003a7e0d2c [ 30.690363] RBP: ffff8801daf071a0 R08: ffff8801dae2cbc0 R09: 1ffffffff11a25cc [ 30.697629] R10: 00000000019d6e0b R11: 0000000000000000 R12: 1ffff1003b5e0e3b [ 30.704890] R13: 1ffff1003a7e0e84 R14: ffff8801d3f06800 R15: 0000000000000000 [ 30.712159] FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 [ 30.720380] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.726271] CR2: 00007fb1b24d7e78 CR3: 00000001ab04b000 CR4: 00000000001406e0 [ 30.733533] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.740787] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.748045] Kernel panic - not syncing: Fatal exception in interrupt [ 31.840974] Shutting down cpus with NMI [ 31.845482] Dumping ftrace buffer: [ 31.849002] (ftrace buffer empty) [ 31.852724] Kernel Offset: disabled [ 31.856329] Rebooting in 86400 seconds..