[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 115.865714][ T30] audit: type=1800 audit(1563049477.916:25): pid=12966 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 115.889719][ T30] audit: type=1800 audit(1563049477.936:26): pid=12966 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 115.916379][ T30] audit: type=1800 audit(1563049477.966:27): pid=12966 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.177' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 129.431893][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 129.671868][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 129.792041][ T12] usb 1-1: config 0 has an invalid interface number: 19 but max is 0 [ 129.800194][ T12] usb 1-1: config 0 has no interface number 0 [ 129.806460][ T12] usb 1-1: New USB device found, idVendor=1618, idProduct=9116, bcdDevice=d9.66 [ 129.815602][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 129.825205][ T12] usb 1-1: config 0 descriptor?? [ 129.866143][ T12] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 130.292074][ T12] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 130.304684][ T12] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 130.311499][ T12] rsi_91x: rsi_probe: Failed in device init [ 130.319159][ T12] rsi_91x: rsi_probe: Failed in probe...Exiting [ 130.325599][ T12] RSI-USB WLAN: probe of 1-1:0.19 failed with error -71 [ 130.336600][ T12] usb 1-1: USB disconnect, device number 2 [ 130.691941][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 130.931997][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 131.052105][ T12] usb 1-1: config 0 has an invalid interface number: 19 but max is 0 [ 131.060303][ T12] usb 1-1: config 0 has no interface number 0 [ 131.066596][ T12] usb 1-1: New USB device found, idVendor=1618, idProduct=9116, bcdDevice=d9.66 [ 131.075778][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 131.085591][ T12] usb 1-1: config 0 descriptor?? [ 131.135999][ T12] rsi_91x: rsi_probe: Initialized os intf ops executing program [ 131.562105][ T12] rsi_91x: rsi_usb_reg_read: Reg read failed with error code :-71 [ 131.570138][ T12] rsi_91x: rsi_hal_prepare_fwload: REGOUT read failed [ 131.577661][ T12] rsi_91x: rsi_probe: Failed in device init [ 131.585540][ T12] rsi_91x: rsi_probe: Failed in probe...Exiting [ 131.592362][ T12] RSI-USB WLAN: probe of 1-1:0.19 failed with error -71 [ 131.603696][ T12] usb 1-1: USB disconnect, device number 3 [ 131.961987][ T12] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 132.101838][ C0] ================================================================== [ 132.110096][ C0] BUG: KMSAN: uninit-value in __run_timers+0xb99/0x11a0 [ 132.117050][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.2.0+ #14 [ 132.123901][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.133957][ C0] Call Trace: [ 132.137236][ C0] <IRQ> [ 132.140091][ C0] dump_stack+0x191/0x1f0 [ 132.144432][ C0] kmsan_report+0x162/0x2d0 [ 132.148974][ C0] __msan_warning+0x75/0xe0 [ 132.153489][ C0] __run_timers+0xb99/0x11a0 [ 132.158085][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.164174][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 132.170077][ C0] run_timer_softirq+0x2d/0x50 [ 132.174845][ C0] ? timers_dead_cpu+0x9c0/0x9c0 [ 132.179778][ C0] __do_softirq+0x4ad/0x858 [ 132.184294][ C0] irq_exit+0x238/0x290 [ 132.188452][ C0] exiting_irq+0xe/0x10 [ 132.192607][ C0] smp_apic_timer_interrupt+0x48/0x70 [ 132.198006][ C0] apic_timer_interrupt+0x2e/0x40 [ 132.203020][ C0] </IRQ> [ 132.205959][ C0] RIP: 0010:default_idle+0x232/0x450 [ 132.211233][ 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 [ 132.230871][ C0] RSP: 0018:ffffffff8f60fd70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 132.239300][ C0] RAX: ffff888217c395f0 RBX: 0000000000000000 RCX: ffff888000000000 [ 132.247267][ C0] RDX: ffff888207e325f0 RSI: 0000160000000000 RDI: 00000000000005f0 [ 132.255234][ C0] RBP: ffffffff8f60fdb0 R08: 000000001024f5f0 R09: 0000778000000000 [ 132.263201][ C0] R10: ffffd0ffffffffff R11: 0000000000000004 R12: ffffffff8f638b50 [ 132.271280][ C0] R13: 0000000000000000 R14: ffffffff8f6381c0 R15: ffffffff8f638b50 [ 132.279293][ C0] ? __cpuidle_text_start+0x8/0x8 [ 132.284314][ C0] ? __cpuidle_text_start+0x8/0x8 [ 132.289335][ C0] arch_cpu_idle+0x25/0x30 [ 132.293764][ C0] do_idle+0x1d7/0x790 [ 132.304720][ C0] cpu_startup_entry+0x45/0x50 [ 132.309490][ C0] rest_init+0x1be/0x1f0 [ 132.313805][ C0] arch_call_rest_init+0x13/0x15 [ 132.318749][ C0] start_kernel+0x991/0xb61 [ 132.323288][ C0] x86_64_start_reservations+0x18/0x2e [ 132.328748][ C0] x86_64_start_kernel+0x81/0x84 [ 132.333711][ C0] secondary_startup_64+0xa4/0xb0 [ 132.338745][ C0] [ 132.341084][ C0] Uninit was created at: [ 132.345321][ C0] kmsan_internal_poison_shadow+0x53/0xa0 [ 132.351035][ C0] kmsan_slab_free+0x8d/0x100 [ 132.355713][ C0] kfree+0x4b2/0x2960 [ 132.359691][ C0] skb_release_data+0xaa8/0xb50 [ 132.364558][ C0] __kfree_skb+0x8a/0x210 [ 132.368884][ C0] consume_skb+0x2b0/0x2e0 [ 132.373316][ C0] skb_free_datagram+0x52/0x180 [ 132.378181][ C0] netlink_recvmsg+0xd2d/0x18e0 [ 132.383029][ C0] sock_recvmsg+0x2df/0x2f0 [ 132.387531][ C0] ___sys_recvmsg+0x3d9/0x1140 [ 132.392316][ C0] __se_sys_recvmsg+0x2fa/0x450 [ 132.403422][ C0] __x64_sys_recvmsg+0x4a/0x70 [ 132.430557][ C0] do_syscall_64+0xbc/0xf0 [ 132.449094][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 132.457868][ C0] ================================================================== [ 132.475332][ C0] Disabling lock debugging due to kernel taint [ 132.482771][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 132.490225][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 5.2.0+ #14 [ 132.502533][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 132.516010][ C0] Call Trace: [ 132.519290][ C0] <IRQ> [ 132.522261][ C0] dump_stack+0x191/0x1f0 [ 132.526766][ C0] panic+0x3c9/0xc1e [ 132.530706][ C0] kmsan_report+0x2ca/0x2d0 [ 132.535382][ C0] __msan_warning+0x75/0xe0 [ 132.539894][ C0] __run_timers+0xb99/0x11a0 [ 132.544473][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 132.550641][ C0] ? kmsan_get_shadow_origin_ptr+0x71/0x470 [ 132.556820][ C0] run_timer_softirq+0x2d/0x50 [ 132.561762][ C0] ? timers_dead_cpu+0x9c0/0x9c0 [ 132.566729][ C0] __do_softirq+0x4ad/0x858 [ 132.571253][ C0] irq_exit+0x238/0x290 [ 132.575400][ C0] exiting_irq+0xe/0x10 [ 132.579550][ C0] smp_apic_timer_interrupt+0x48/0x70 [ 132.584918][ C0] apic_timer_interrupt+0x2e/0x40 [ 132.589949][ C0] </IRQ> [ 132.592900][ C0] RIP: 0010:default_idle+0x232/0x450 [ 132.598777][ 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 [ 132.622408][ C0] RSP: 0018:ffffffff8f60fd70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 132.631665][ C0] RAX: ffff888217c395f0 RBX: 0000000000000000 RCX: ffff888000000000 [ 132.639948][ C0] RDX: ffff888207e325f0 RSI: 0000160000000000 RDI: 00000000000005f0 [ 132.649094][ C0] RBP: ffffffff8f60fdb0 R08: 000000001024f5f0 R09: 0000778000000000 [ 132.657972][ C0] R10: ffffd0ffffffffff R11: 0000000000000004 R12: ffffffff8f638b50 [ 132.667602][ C0] R13: 0000000000000000 R14: ffffffff8f6381c0 R15: ffffffff8f638b50 [ 132.675914][ C0] ? __cpuidle_text_start+0x8/0x8 [ 132.681082][ C0] ? __cpuidle_text_start+0x8/0x8 [ 132.686232][ C0] arch_cpu_idle+0x25/0x30 [ 132.690791][ C0] do_idle+0x1d7/0x790 [ 132.695113][ C0] cpu_startup_entry+0x45/0x50 [ 132.700035][ C0] rest_init+0x1be/0x1f0 [ 132.704396][ C0] arch_call_rest_init+0x13/0x15 [ 132.710913][ C0] start_kernel+0x991/0xb61 [ 132.715548][ C0] x86_64_start_reservations+0x18/0x2e [ 132.722900][ C0] x86_64_start_kernel+0x81/0x84 [ 132.727967][ C0] secondary_startup_64+0xa4/0xb0 [ 132.735853][ C0] Kernel Offset: disabled [ 132.740718][ C0] Rebooting in 86400 seconds..