[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 74.197582][ T32] audit: type=1800 audit(1566475363.249:25): pid=11092 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 74.222841][ T32] audit: type=1800 audit(1566475363.279:26): pid=11092 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 74.257175][ T32] audit: type=1800 audit(1566475363.299:27): pid=11092 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.120' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 83.441870][ T2925] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 83.681857][ T2925] usb 1-1: Using ep0 maxpacket: 8 [ 83.801971][ T2925] usb 1-1: config 0 has an invalid interface number: 235 but max is 0 [ 83.810194][ T2925] usb 1-1: config 0 has no interface number 0 [ 83.816408][ T2925] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=19.d3 [ 83.825592][ T2925] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 83.834935][ T2925] usb 1-1: config 0 descriptor?? [ 83.875174][ T2925] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 84.311948][ T2925] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 84.319879][ T2925] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 84.326841][ T2925] rsi_91x: rsi_probe: Failed in device init [ 84.334223][ T2925] rsi_91x: rsi_probe: Failed in probe...Exiting [ 84.340554][ T2925] RSI-USB WLAN: probe of 1-1:0.235 failed with error -71 [ 84.351236][ T2925] usb 1-1: USB disconnect, device number 2 [ 84.701910][ T2925] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 84.941930][ T2925] usb 1-1: Using ep0 maxpacket: 8 [ 85.062140][ T2925] usb 1-1: config 0 has an invalid interface number: 235 but max is 0 [ 85.070362][ T2925] usb 1-1: config 0 has no interface number 0 [ 85.082537][ T2925] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=19.d3 [ 85.091603][ T2925] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 85.100963][ T2925] usb 1-1: config 0 descriptor?? [ 85.148531][ T2925] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 85.581971][ T2925] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 85.589829][ T2925] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 85.596761][ T2925] rsi_91x: rsi_probe: Failed in device init [ 85.603898][ T2925] rsi_91x: rsi_probe: Failed in probe...Exiting [ 85.610224][ T2925] RSI-USB WLAN: probe of 1-1:0.235 failed with error -71 [ 85.621250][ T2925] usb 1-1: USB disconnect, device number 3 [ 85.971860][ T2925] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 86.101835][ C0] ================================================================== [ 86.109922][ C0] BUG: KMSAN: uninit-value in __run_timers+0xb99/0x11a0 [ 86.116850][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0-rc3+ #17 [ 86.124030][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.134080][ C0] Call Trace: [ 86.137348][ C0] [ 86.140204][ C0] dump_stack+0x191/0x1f0 [ 86.144524][ C0] kmsan_report+0x162/0x2d0 [ 86.149013][ C0] __msan_warning+0x75/0xe0 [ 86.153496][ C0] __run_timers+0xb99/0x11a0 [ 86.158083][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 86.164178][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 86.170140][ C0] run_timer_softirq+0x2d/0x50 [ 86.174890][ C0] ? timers_dead_cpu+0x9d0/0x9d0 [ 86.179821][ C0] __do_softirq+0x4a1/0x83a [ 86.184311][ C0] irq_exit+0x230/0x280 [ 86.188449][ C0] exiting_irq+0xe/0x10 [ 86.192584][ C0] smp_apic_timer_interrupt+0x48/0x70 [ 86.197937][ C0] apic_timer_interrupt+0x2e/0x40 [ 86.203622][ C0] [ 86.206554][ C0] RIP: 0010:default_idle+0x53/0x90 [ 86.211641][ C0] Code: 43 51 ed f2 44 8b 35 f4 c0 d3 01 48 c7 c7 78 c5 25 90 e8 10 3c b3 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 6f 4a 4f 00 fb f4 <65> 8b 35 8e ae b0 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff [ 86.231224][ C0] RSP: 0018:ffffffff8f60fda0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 86.239614][ C0] RAX: ffff888217c46578 RBX: ffffffff8f638b60 RCX: ccccccccccccd000 [ 86.247564][ C0] RDX: ffff888207e3f578 RSI: ffffea000a76d5e0 RDI: ffffffff9025c578 [ 86.255514][ C0] RBP: ffffffff8f60fdb0 R08: ffffea000000000f R09: ffff88812fffb000 [ 86.263465][ C0] R10: 0000000000000004 R11: ffffffff8e520450 R12: 0000000000000000 [ 86.271429][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8f638b60 [ 86.279390][ C0] ? __cpuidle_text_start+0x8/0x8 [ 86.284416][ C0] ? __cpuidle_text_start+0x8/0x8 [ 86.289421][ C0] arch_cpu_idle+0x25/0x30 [ 86.293834][ C0] do_idle+0x1d7/0x790 [ 86.297887][ C0] cpu_startup_entry+0x45/0x50 [ 86.302801][ C0] rest_init+0x1be/0x1f0 [ 86.307024][ C0] arch_call_rest_init+0x13/0x15 [ 86.311938][ C0] start_kernel+0x991/0xb61 [ 86.316427][ C0] x86_64_start_reservations+0x18/0x2e [ 86.321893][ C0] x86_64_start_kernel+0x81/0x84 [ 86.326815][ C0] secondary_startup_64+0xa4/0xb0 [ 86.331820][ C0] [ 86.334210][ C0] Uninit was created at: [ 86.338440][ C0] kmsan_internal_poison_shadow+0x53/0xa0 [ 86.344135][ C0] kmsan_slab_free+0x8d/0x100 [ 86.348788][ C0] kfree+0x4c1/0x2db0 [ 86.352749][ C0] skb_release_data+0x7de/0x9d0 [ 86.357574][ C0] __kfree_skb+0x8a/0x210 [ 86.361899][ C0] consume_skb+0x2b0/0x2e0 [ 86.366297][ C0] skb_free_datagram+0x52/0x180 [ 86.371125][ C0] netlink_recvmsg+0xd2d/0x18e0 [ 86.375953][ C0] sock_recvmsg+0x3b3/0x3c0 [ 86.380430][ C0] ___sys_recvmsg+0x461/0x11e0 [ 86.385189][ C0] __se_sys_recvmsg+0x2fa/0x450 [ 86.390018][ C0] __x64_sys_recvmsg+0x4a/0x70 [ 86.394766][ C0] do_syscall_64+0xbc/0xf0 [ 86.399174][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 86.405065][ C0] ================================================================== [ 86.413106][ C0] Disabling lock debugging due to kernel taint [ 86.419234][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 86.425821][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.3.0-rc3+ #17 [ 86.434379][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.444411][ C0] Call Trace: [ 86.447675][ C0] [ 86.450531][ C0] dump_stack+0x191/0x1f0 [ 86.454851][ C0] panic+0x3c9/0xc1e [ 86.458741][ C0] kmsan_report+0x2ca/0x2d0 [ 86.463226][ C0] __msan_warning+0x75/0xe0 [ 86.467721][ C0] __run_timers+0xb99/0x11a0 [ 86.472292][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 86.478346][ C0] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 86.484306][ C0] run_timer_softirq+0x2d/0x50 [ 86.489053][ C0] ? timers_dead_cpu+0x9d0/0x9d0 [ 86.493971][ C0] __do_softirq+0x4a1/0x83a [ 86.498463][ C0] irq_exit+0x230/0x280 [ 86.502606][ C0] exiting_irq+0xe/0x10 [ 86.506756][ C0] smp_apic_timer_interrupt+0x48/0x70 [ 86.512197][ C0] apic_timer_interrupt+0x2e/0x40 [ 86.517215][ C0] [ 86.520137][ C0] RIP: 0010:default_idle+0x53/0x90 [ 86.525238][ C0] Code: 43 51 ed f2 44 8b 35 f4 c0 d3 01 48 c7 c7 78 c5 25 90 e8 10 3c b3 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 6f 4a 4f 00 fb f4 <65> 8b 35 8e ae b0 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff [ 86.545341][ C0] RSP: 0018:ffffffff8f60fda0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 86.553730][ C0] RAX: ffff888217c46578 RBX: ffffffff8f638b60 RCX: ccccccccccccd000 [ 86.561679][ C0] RDX: ffff888207e3f578 RSI: ffffea000a76d5e0 RDI: ffffffff9025c578 [ 86.569634][ C0] RBP: ffffffff8f60fdb0 R08: ffffea000000000f R09: ffff88812fffb000 [ 86.577957][ C0] R10: 0000000000000004 R11: ffffffff8e520450 R12: 0000000000000000 [ 86.585914][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8f638b60 [ 86.593987][ C0] ? __cpuidle_text_start+0x8/0x8 [ 86.598996][ C0] ? __cpuidle_text_start+0x8/0x8 [ 86.604000][ C0] arch_cpu_idle+0x25/0x30 [ 86.608396][ C0] do_idle+0x1d7/0x790 [ 86.612526][ C0] cpu_startup_entry+0x45/0x50 [ 86.617286][ C0] rest_init+0x1be/0x1f0 [ 86.621517][ C0] arch_call_rest_init+0x13/0x15 [ 86.626453][ C0] start_kernel+0x991/0xb61 [ 86.630942][ C0] x86_64_start_reservations+0x18/0x2e [ 86.636727][ C0] x86_64_start_kernel+0x81/0x84 [ 86.641650][ C0] secondary_startup_64+0xa4/0xb0 [ 86.647764][ C0] Kernel Offset: disabled [ 86.652086][ C0] Rebooting in 86400 seconds..