[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 110.650292][ T31] audit: type=1800 audit(1564950142.723:25): pid=12353 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 110.674783][ T31] audit: type=1800 audit(1564950142.743:26): pid=12353 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 110.713696][ T31] audit: type=1800 audit(1564950142.773:27): pid=12353 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 '10.128.0.184' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 123.327339][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 123.567140][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 123.687355][ T12] usb 1-1: config 0 has an invalid interface number: 235 but max is 0 [ 123.695607][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 123.706177][ T12] usb 1-1: config 0 has no interface number 0 [ 123.712397][ T12] usb 1-1: config 0 interface 235 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 0 [ 123.722492][ T12] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=19.d3 [ 123.731701][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 123.742041][ T12] usb 1-1: config 0 descriptor?? [ 123.791923][ T12] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 124.217556][ T12] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 124.225584][ T12] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 124.232615][ T12] rsi_91x: rsi_probe: Failed in device init [ 124.240747][ T12] rsi_91x: rsi_probe: Failed in probe...Exiting [ 124.247641][ T12] RSI-USB WLAN: probe of 1-1:0.235 failed with error -71 [ 124.261071][ T12] usb 1-1: USB disconnect, device number 2 [ 124.617259][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 124.857202][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 124.977568][ T12] usb 1-1: config 0 has an invalid interface number: 235 but max is 0 [ 124.985967][ T12] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 124.996276][ T12] usb 1-1: config 0 has no interface number 0 [ 125.002880][ T12] usb 1-1: config 0 interface 235 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 0 [ 125.013003][ T12] usb 1-1: New USB device found, idVendor=1618, idProduct=9113, bcdDevice=19.d3 [ 125.022149][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 125.032140][ T12] usb 1-1: config 0 descriptor?? [ 125.081262][ T12] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 125.507507][ T12] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 125.515442][ T12] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 125.523084][ T12] rsi_91x: rsi_probe: Failed in device init [ 125.530822][ T12] rsi_91x: rsi_probe: Failed in probe...Exiting [ 125.537690][ T12] RSI-USB WLAN: probe of 1-1:0.235 failed with error -71 [ 125.549324][ T12] usb 1-1: USB disconnect, device number 3 [ 125.907209][ T12] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 126.077067][ C0] ================================================================== [ 126.085232][ C0] BUG: KMSAN: uninit-value in __run_timers+0xb99/0x11a0 [ 126.100236][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.2.0+ #15 [ 126.107094][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.117172][ C0] Call Trace: [ 126.120486][ C0] [ 126.123409][ C0] dump_stack+0x191/0x1f0 [ 126.127755][ C0] kmsan_report+0x162/0x2d0 [ 126.132259][ C0] __msan_warning+0x75/0xe0 [ 126.136768][ C0] __run_timers+0xb99/0x11a0 [ 126.141383][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 126.147479][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 126.153388][ C0] run_timer_softirq+0x2d/0x50 [ 126.158155][ C0] ? timers_dead_cpu+0x9c0/0x9c0 [ 126.163105][ C0] __do_softirq+0x4ad/0x858 [ 126.167624][ C0] irq_exit+0x238/0x290 [ 126.171944][ C0] exiting_irq+0xe/0x10 [ 126.176123][ C0] smp_apic_timer_interrupt+0x48/0x70 [ 126.181492][ C0] apic_timer_interrupt+0x2e/0x40 [ 126.186526][ C0] [ 126.189749][ C0] RIP: 0010:default_idle+0x232/0x450 [ 126.195048][ C0] Code: 37 f3 8b 1d 40 8c df 01 48 c7 c7 f0 f5 24 90 e8 f4 42 bb f3 83 38 00 0f 85 a4 01 00 00 85 db 7e 07 0f 00 2d 30 e3 5b 00 fb f4 <65> 8b 05 47 47 bd 71 89 45 c4 8b 1d 16 9e 7f 01 48 c7 c7 f8 07 c5 [ 126.215264][ C0] RSP: 0018:ffffffff8f60fd70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 126.224533][ C0] RAX: ffff888217c395f0 RBX: 0000000000000000 RCX: ffff888000000000 [ 126.232801][ C0] RDX: ffff888207e325f0 RSI: 0000160000000000 RDI: 00000000000005f0 [ 126.240819][ C0] RBP: ffffffff8f60fdb0 R08: 000000001024f5f0 R09: 0000778000000000 [ 126.248825][ C0] R10: ffffd0ffffffffff R11: 0000000000000004 R12: ffffffff8f638b50 [ 126.256804][ C0] R13: 0000000000000000 R14: ffffffff8f6381c0 R15: ffffffff8f638b50 [ 126.264813][ C0] ? __cpuidle_text_start+0x8/0x8 [ 126.271066][ C0] ? __cpuidle_text_start+0x8/0x8 [ 126.276123][ C0] arch_cpu_idle+0x25/0x30 [ 126.280548][ C0] do_idle+0x1d7/0x790 [ 126.284715][ C0] cpu_startup_entry+0x45/0x50 [ 126.290206][ C0] rest_init+0x1be/0x1f0 [ 126.294580][ C0] arch_call_rest_init+0x13/0x15 [ 126.299535][ C0] start_kernel+0x991/0xb61 [ 126.304065][ C0] x86_64_start_reservations+0x18/0x2e [ 126.309531][ C0] x86_64_start_kernel+0x81/0x84 [ 126.314499][ C0] secondary_startup_64+0xa4/0xb0 [ 126.319948][ C0] [ 126.322282][ C0] Uninit was created at: [ 126.326522][ C0] kmsan_internal_poison_shadow+0x53/0xa0 [ 126.332237][ C0] kmsan_slab_free+0x8d/0x100 [ 126.336920][ C0] kfree+0x4b2/0x2960 [ 126.340955][ C0] skb_release_data+0xaa8/0xb50 [ 126.348687][ C0] __kfree_skb+0x8a/0x210 [ 126.353025][ C0] consume_skb+0x2b0/0x2e0 [ 126.357480][ C0] skb_free_datagram+0x52/0x180 [ 126.362357][ C0] netlink_recvmsg+0xd2d/0x18e0 [ 126.367202][ C0] sock_recvmsg+0x2df/0x2f0 [ 126.371901][ C0] ___sys_recvmsg+0x3d9/0x1140 [ 126.376683][ C0] __se_sys_recvmsg+0x2fa/0x450 [ 126.381548][ C0] __x64_sys_recvmsg+0x4a/0x70 [ 126.386314][ C0] do_syscall_64+0xbc/0xf0 [ 126.390725][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 126.396598][ C0] ================================================================== [ 126.404687][ C0] Disabling lock debugging due to kernel taint [ 126.410923][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 126.417512][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.2.0+ #15 [ 126.426299][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 126.436442][ C0] Call Trace: [ 126.439735][ C0] [ 126.442609][ C0] dump_stack+0x191/0x1f0 [ 126.447392][ C0] panic+0x3c9/0xc1e [ 126.451761][ C0] kmsan_report+0x2ca/0x2d0 [ 126.456668][ C0] __msan_warning+0x75/0xe0 [ 126.461203][ C0] __run_timers+0xb99/0x11a0 [ 126.465829][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 126.472013][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 126.478014][ C0] run_timer_softirq+0x2d/0x50 [ 126.482787][ C0] ? timers_dead_cpu+0x9c0/0x9c0 [ 126.487813][ C0] __do_softirq+0x4ad/0x858 [ 126.492355][ C0] irq_exit+0x238/0x290 [ 126.496615][ C0] exiting_irq+0xe/0x10 [ 126.500768][ C0] smp_apic_timer_interrupt+0x48/0x70 [ 126.506234][ C0] apic_timer_interrupt+0x2e/0x40 [ 126.511446][ C0] [ 126.514683][ C0] RIP: 0010:default_idle+0x232/0x450 [ 126.520680][ C0] Code: 37 f3 8b 1d 40 8c df 01 48 c7 c7 f0 f5 24 90 e8 f4 42 bb f3 83 38 00 0f 85 a4 01 00 00 85 db 7e 07 0f 00 2d 30 e3 5b 00 fb f4 <65> 8b 05 47 47 bd 71 89 45 c4 8b 1d 16 9e 7f 01 48 c7 c7 f8 07 c5 [ 126.541346][ C0] RSP: 0018:ffffffff8f60fd70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 126.549857][ C0] RAX: ffff888217c395f0 RBX: 0000000000000000 RCX: ffff888000000000 [ 126.557916][ C0] RDX: ffff888207e325f0 RSI: 0000160000000000 RDI: 00000000000005f0 [ 126.565914][ C0] RBP: ffffffff8f60fdb0 R08: 000000001024f5f0 R09: 0000778000000000 [ 126.573886][ C0] R10: ffffd0ffffffffff R11: 0000000000000004 R12: ffffffff8f638b50 [ 126.581851][ C0] R13: 0000000000000000 R14: ffffffff8f6381c0 R15: ffffffff8f638b50 [ 126.589858][ C0] ? __cpuidle_text_start+0x8/0x8 [ 126.595040][ C0] ? __cpuidle_text_start+0x8/0x8 [ 126.600084][ C0] arch_cpu_idle+0x25/0x30 [ 126.604523][ C0] do_idle+0x1d7/0x790 [ 126.608686][ C0] cpu_startup_entry+0x45/0x50 [ 126.613468][ C0] rest_init+0x1be/0x1f0 [ 126.618722][ C0] arch_call_rest_init+0x13/0x15 [ 126.623919][ C0] start_kernel+0x991/0xb61 [ 126.628427][ C0] x86_64_start_reservations+0x18/0x2e [ 126.633916][ C0] x86_64_start_kernel+0x81/0x84 [ 126.638873][ C0] secondary_startup_64+0xa4/0xb0 [ 126.645345][ C0] Kernel Offset: disabled [ 126.649719][ C0] Rebooting in 86400 seconds..