[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.258820][ T31] audit: type=1800 audit(1567931220.300:25): pid=11565 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.282518][ T31] audit: type=1800 audit(1567931220.320:26): pid=11565 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.317322][ T31] audit: type=1800 audit(1567931220.350:27): pid=11565 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 '10.128.10.28' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 89.081966][ T30] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 89.321934][ T30] usb 1-1: Using ep0 maxpacket: 8 [ 89.442079][ T30] usb 1-1: config 0 has an invalid interface number: 235 but max is 0 [ 89.450308][ T30] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 89.460541][ T30] usb 1-1: config 0 has no interface number 0 [ 89.466711][ T30] usb 1-1: config 0 interface 235 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 0 [ 89.476723][ T30] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=19.d3 [ 89.485811][ T30] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 89.495140][ T30] usb 1-1: config 0 descriptor?? [ 89.546916][ T30] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 89.992000][ T30] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 89.999921][ T30] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 90.007292][ T30] rsi_91x: rsi_probe: Failed in device init [ 90.014595][ T30] rsi_91x: rsi_probe: Failed in probe...Exiting [ 90.020899][ T30] RSI-USB WLAN: probe of 1-1:0.235 failed with error -71 [ 90.031665][ T30] usb 1-1: USB disconnect, device number 2 [ 90.382024][ T30] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 90.621974][ T30] usb 1-1: Using ep0 maxpacket: 8 [ 90.742068][ T30] usb 1-1: config 0 has an invalid interface number: 235 but max is 0 [ 90.750452][ T30] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 90.760728][ T30] usb 1-1: config 0 has no interface number 0 [ 90.766918][ T30] usb 1-1: config 0 interface 235 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 0 [ 90.776983][ T30] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=19.d3 [ 90.786128][ T30] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 90.795419][ T30] usb 1-1: config 0 descriptor?? [ 90.835632][ T30] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 91.262027][ T30] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 91.269894][ T30] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 91.277121][ T30] rsi_91x: rsi_probe: Failed in device init [ 91.284489][ T30] rsi_91x: rsi_probe: Failed in probe...Exiting [ 91.290804][ T30] RSI-USB WLAN: probe of 1-1:0.235 failed with error -71 [ 91.301701][ T30] usb 1-1: USB disconnect, device number 3 [ 91.651940][ T30] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 91.771867][ C1] ================================================================== [ 91.779976][ C1] BUG: KMSAN: uninit-value in __run_timers+0xb99/0x11a0 [ 91.786901][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc7+ #0 [ 91.793985][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.804020][ C1] Call Trace: [ 91.807283][ C1] [ 91.810136][ C1] dump_stack+0x191/0x1f0 [ 91.814456][ C1] kmsan_report+0x162/0x2d0 [ 91.818947][ C1] __msan_warning+0x75/0xe0 [ 91.823437][ C1] __run_timers+0xb99/0x11a0 [ 91.828013][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 91.834077][ C1] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 91.840048][ C1] run_timer_softirq+0x2d/0x50 [ 91.844799][ C1] ? timers_dead_cpu+0x9d0/0x9d0 [ 91.849732][ C1] __do_softirq+0x4a1/0x83a [ 91.854228][ C1] irq_exit+0x230/0x280 [ 91.858433][ C1] exiting_irq+0xe/0x10 [ 91.862580][ C1] smp_apic_timer_interrupt+0x48/0x70 [ 91.867944][ C1] apic_timer_interrupt+0x2e/0x40 [ 91.872945][ C1] [ 91.875865][ C1] RIP: 0010:default_idle+0x53/0x90 [ 91.880954][ C1] Code: 13 ce eb f2 44 8b 35 94 59 d2 01 48 c7 c7 78 d5 25 90 e8 30 9b b1 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 8f d3 4d 00 fb f4 <65> 8b 35 2e 37 af 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff [ 91.900554][ C1] RSP: 0018:ffff8881280cfe10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 91.908959][ C1] RAX: ffff888217c47578 RBX: ffff88812d7e89a0 RCX: ccccccccccccd000 [ 91.916908][ C1] RDX: ffff888207e40578 RSI: ffffea000a76d630 RDI: ffffffff9025d578 [ 91.924864][ C1] RBP: ffff8881280cfe20 R08: ffffea000000000f R09: ffff88812fffb000 [ 91.932838][ C1] R10: 00000015617e9980 R11: ffffffff8e537bb0 R12: 0000000000000001 [ 91.940795][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812d7e89a0 [ 91.948762][ C1] ? __cpuidle_text_start+0x8/0x8 [ 91.953776][ C1] ? __cpuidle_text_start+0x8/0x8 [ 91.958781][ C1] arch_cpu_idle+0x25/0x30 [ 91.963181][ C1] do_idle+0x1d7/0x790 [ 91.967234][ C1] cpu_startup_entry+0x45/0x50 [ 91.971997][ C1] ? setup_APIC_timer+0x210/0x210 [ 91.977003][ C1] start_secondary+0x370/0x470 [ 91.981751][ C1] secondary_startup_64+0xa4/0xb0 [ 91.986756][ C1] [ 91.989059][ C1] Uninit was created at: [ 91.993278][ C1] kmsan_internal_poison_shadow+0x58/0xb0 [ 91.998973][ C1] kmsan_slab_free+0x8d/0x100 [ 92.003629][ C1] kfree+0x4c1/0x2db0 [ 92.007591][ C1] skb_release_data+0x7de/0x9d0 [ 92.012416][ C1] __kfree_skb+0x8a/0x210 [ 92.016719][ C1] consume_skb+0x2b0/0x2e0 [ 92.021111][ C1] skb_free_datagram+0x52/0x180 [ 92.025941][ C1] netlink_recvmsg+0xd2d/0x18e0 [ 92.030769][ C1] sock_recvmsg+0x3b3/0x3c0 [ 92.035253][ C1] ___sys_recvmsg+0x461/0x11e0 [ 92.039993][ C1] __se_sys_recvmsg+0x2fa/0x450 [ 92.044820][ C1] __x64_sys_recvmsg+0x4a/0x70 [ 92.049565][ C1] do_syscall_64+0xbc/0xf0 [ 92.053959][ C1] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 92.059824][ C1] ================================================================== [ 92.067861][ C1] Disabling lock debugging due to kernel taint [ 92.073985][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 92.080564][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.3.0-rc7+ #0 [ 92.089033][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.099063][ C1] Call Trace: [ 92.102328][ C1] [ 92.105226][ C1] dump_stack+0x191/0x1f0 [ 92.109539][ C1] panic+0x3c9/0xc1e [ 92.113472][ C1] kmsan_report+0x2ca/0x2d0 [ 92.117967][ C1] __msan_warning+0x75/0xe0 [ 92.122450][ C1] __run_timers+0xb99/0x11a0 [ 92.127019][ C1] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 92.133074][ C1] ? kmsan_get_shadow_origin_ptr+0x28c/0x3a0 [ 92.139033][ C1] run_timer_softirq+0x2d/0x50 [ 92.143781][ C1] ? timers_dead_cpu+0x9d0/0x9d0 [ 92.148703][ C1] __do_softirq+0x4a1/0x83a [ 92.153189][ C1] irq_exit+0x230/0x280 [ 92.157325][ C1] exiting_irq+0xe/0x10 [ 92.161458][ C1] smp_apic_timer_interrupt+0x48/0x70 [ 92.166807][ C1] apic_timer_interrupt+0x2e/0x40 [ 92.171815][ C1] [ 92.174742][ C1] RIP: 0010:default_idle+0x53/0x90 [ 92.179829][ C1] Code: 13 ce eb f2 44 8b 35 94 59 d2 01 48 c7 c7 78 d5 25 90 e8 30 9b b1 f3 83 38 00 75 31 45 85 f6 7e 07 0f 00 2d 8f d3 4d 00 fb f4 <65> 8b 35 2e 37 af 71 c7 03 00 00 00 00 c7 43 08 00 00 00 00 bf ff [ 92.199413][ C1] RSP: 0018:ffff8881280cfe10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 92.207803][ C1] RAX: ffff888217c47578 RBX: ffff88812d7e89a0 RCX: ccccccccccccd000 [ 92.215750][ C1] RDX: ffff888207e40578 RSI: ffffea000a76d630 RDI: ffffffff9025d578 [ 92.223697][ C1] RBP: ffff8881280cfe20 R08: ffffea000000000f R09: ffff88812fffb000 [ 92.231683][ C1] R10: 00000015617e9980 R11: ffffffff8e537bb0 R12: 0000000000000001 [ 92.239642][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812d7e89a0 [ 92.247623][ C1] ? __cpuidle_text_start+0x8/0x8 [ 92.252644][ C1] ? __cpuidle_text_start+0x8/0x8 [ 92.257660][ C1] arch_cpu_idle+0x25/0x30 [ 92.262067][ C1] do_idle+0x1d7/0x790 [ 92.266120][ C1] cpu_startup_entry+0x45/0x50 [ 92.270865][ C1] ? setup_APIC_timer+0x210/0x210 [ 92.275868][ C1] start_secondary+0x370/0x470 [ 92.280616][ C1] secondary_startup_64+0xa4/0xb0 [ 92.286975][ C1] Kernel Offset: disabled [ 92.291292][ C1] Rebooting in 86400 seconds..