[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.044871][ T31] audit: type=1800 audit(1569016674.109:25): pid=11531 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.068176][ T31] audit: type=1800 audit(1569016674.129:26): pid=11531 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.102794][ T31] audit: type=1800 audit(1569016674.159:27): pid=11531 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 '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 89.856606][T11683] IPVS: ftp: loaded support on port[0] = 21 [ 90.172259][ T38] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 90.412211][ T38] usb 1-1: Using ep0 maxpacket: 16 [ 90.532352][ T38] usb 1-1: config 0 has an invalid interface number: 128 but max is 0 [ 90.540581][ T38] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 90.550822][ T38] usb 1-1: config 0 has no interface number 0 [ 90.557028][ T38] usb 1-1: config 0 interface 128 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 90.568823][ T38] usb 1-1: New USB device found, idVendor=12cf, idProduct=7111, bcdDevice=48.08 [ 90.577951][ T38] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 90.587866][ T38] usb 1-1: config 0 descriptor?? [ 90.852346][ T38] radio-si470x 1-1:0.128: DeviceID=0xa136 ChipID=0xb180 [ 91.072354][ T38] radio-si470x 1-1:0.128: software version 161, hardware version 54 [ 91.292333][ T38] radio-si470x 1-1:0.128: si470x_set_report: usb_control_msg returned -71 [ 91.312247][ C1] radio-si470x 1-1:0.128: non-zero urb status (-71) [ 91.319275][ T38] radio-si470x 1-1:0.128: si470x_set_report: usb_control_msg returned -71 [ 91.328361][ T38] radio-si470x: probe of 1-1:0.128 failed with error -22 [ 91.335559][ C1] usb 1-1:0.128: non-zero urb status (-71) [ 91.344136][ T38] usb 1-1: USB disconnect, device number 2 [ 91.350933][ T38] ================================================================== [ 91.359021][ T38] BUG: KMSAN: uninit-value in usb_hcd_flush_endpoint+0x320/0x570 [ 91.366727][ T38] CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 5.3.0-rc7+ #0 [ 91.374082][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.384129][ T38] Workqueue: usb_hub_wq hub_event [ 91.389131][ T38] Call Trace: [ 91.392408][ T38] dump_stack+0x191/0x1f0 [ 91.396736][ T38] kmsan_report+0x162/0x2d0 [ 91.401221][ T38] __msan_warning+0x75/0xe0 [ 91.405710][ T38] usb_hcd_flush_endpoint+0x320/0x570 [ 91.411065][ T38] usb_disable_device+0xfee/0x1150 [ 91.416192][ T38] usb_disconnect+0x51e/0xd60 [ 91.420859][ T38] hub_event+0x3fd0/0x72f0 [ 91.425270][ T38] ? dlm_recover_masters+0x108c/0x2050 [ 91.430724][ T38] ? kmsan_get_shadow_origin_ptr+0x71/0x4c0 [ 91.436611][ T38] ? led_work+0x720/0x720 [ 91.440923][ T38] ? led_work+0x720/0x720 [ 91.445240][ T38] process_one_work+0x1572/0x1ef0 [ 91.450273][ T38] worker_thread+0x189c/0x2460 [ 91.455051][ T38] kthread+0x4b5/0x4f0 [ 91.459196][ T38] ? process_one_work+0x1ef0/0x1ef0 [ 91.464427][ T38] ? kthread_blkcg+0xf0/0xf0 [ 91.469004][ T38] ret_from_fork+0x35/0x40 [ 91.473404][ T38] [ 91.475736][ T38] Uninit was stored to memory at: [ 91.480740][ T38] kmsan_internal_chain_origin+0xcc/0x150 [ 91.486437][ T38] __msan_chain_origin+0x6b/0xe0 [ 91.491353][ T38] usb_hcd_link_urb_to_ep+0x47d/0x520 [ 91.496813][ T38] dummy_urb_enqueue+0x581/0xe10 [ 91.501728][ T38] usb_hcd_submit_urb+0x672/0x38d0 [ 91.507784][ T38] usb_submit_urb+0x1ef3/0x1f50 [ 91.512622][ T38] si470x_int_in_callback+0x3f7/0x1010 [ 91.518055][ T38] __usb_hcd_giveback_urb+0x4a7/0x630 [ 91.523404][ T38] usb_hcd_giveback_urb+0x189/0x670 [ 91.528578][ T38] dummy_timer+0xab0/0x6770 [ 91.533145][ T38] call_timer_fn+0x232/0x530 [ 91.537720][ T38] __run_timers+0xcdc/0x11a0 [ 91.542285][ T38] run_timer_softirq+0x2d/0x50 [ 91.547025][ T38] __do_softirq+0x4a1/0x83a [ 91.551505][ T38] irq_exit+0x230/0x280 [ 91.556419][ T38] exiting_irq+0xe/0x10 [ 91.560553][ T38] smp_apic_timer_interrupt+0x48/0x70 [ 91.565911][ T38] apic_timer_interrupt+0x2e/0x40 [ 91.570912][ T38] console_unlock+0x191b/0x1cb0 [ 91.575737][ T38] vprintk_emit+0x45b/0x8f0 [ 91.580215][ T38] vprintk_default+0x90/0xa0 [ 91.584781][ T38] vprintk_func+0x635/0x810 [ 91.589279][ T38] printk+0x180/0x1c3 [ 91.593264][ T38] really_probe+0x1b57/0x1dc0 [ 91.597918][ T38] driver_probe_device+0x1ba/0x510 [ 91.603009][ T38] __device_attach_driver+0x5b8/0x790 [ 91.608379][ T38] bus_for_each_drv+0x28e/0x3b0 [ 91.613209][ T38] __device_attach+0x489/0x750 [ 91.617950][ T38] device_initial_probe+0x4a/0x60 [ 91.622977][ T38] bus_probe_device+0x131/0x390 [ 91.628601][ T38] device_add+0x25b5/0x2df0 [ 91.633085][ T38] usb_set_configuration+0x309f/0x3710 [ 91.639041][ T38] generic_probe+0xe7/0x280 [ 91.643536][ T38] usb_probe_device+0x146/0x200 [ 91.648374][ T38] really_probe+0x1373/0x1dc0 [ 91.653031][ T38] driver_probe_device+0x1ba/0x510 [ 91.658136][ T38] __device_attach_driver+0x5b8/0x790 [ 91.663490][ T38] bus_for_each_drv+0x28e/0x3b0 [ 91.668317][ T38] __device_attach+0x489/0x750 [ 91.673057][ T38] device_initial_probe+0x4a/0x60 [ 91.678055][ T38] bus_probe_device+0x131/0x390 [ 91.682888][ T38] device_add+0x25b5/0x2df0 [ 91.687367][ T38] usb_new_device+0x23e5/0x2fb0 [ 91.692194][ T38] hub_event+0x581d/0x72f0 [ 91.696589][ T38] process_one_work+0x1572/0x1ef0 [ 91.701587][ T38] worker_thread+0x111b/0x2460 [ 91.706325][ T38] kthread+0x4b5/0x4f0 [ 91.710372][ T38] ret_from_fork+0x35/0x40 [ 91.714760][ T38] [ 91.717063][ T38] Uninit was created at: [ 91.721284][ T38] kmsan_internal_poison_shadow+0x58/0xb0 [ 91.726981][ T38] kmsan_slab_free+0x8d/0x100 [ 91.731649][ T38] kfree+0x4c1/0x2db0 [ 91.735611][ T38] si470x_usb_driver_probe+0xa6f/0x3200 [ 91.741147][ T38] usb_probe_interface+0xd19/0x1310 [ 91.746325][ T38] really_probe+0x1373/0x1dc0 [ 91.750979][ T38] driver_probe_device+0x1ba/0x510 [ 91.756067][ T38] __device_attach_driver+0x5b8/0x790 [ 91.761427][ T38] bus_for_each_drv+0x28e/0x3b0 [ 91.766259][ T38] __device_attach+0x489/0x750 [ 91.771011][ T38] device_initial_probe+0x4a/0x60 [ 91.776099][ T38] bus_probe_device+0x131/0x390 [ 91.780938][ T38] device_add+0x25b5/0x2df0 [ 91.785431][ T38] usb_set_configuration+0x309f/0x3710 [ 91.790876][ T38] generic_probe+0xe7/0x280 [ 91.795356][ T38] usb_probe_device+0x146/0x200 [ 91.800184][ T38] really_probe+0x1373/0x1dc0 [ 91.804838][ T38] driver_probe_device+0x1ba/0x510 [ 91.809927][ T38] __device_attach_driver+0x5b8/0x790 [ 91.815277][ T38] bus_for_each_drv+0x28e/0x3b0 [ 91.820107][ T38] __device_attach+0x489/0x750 [ 91.824846][ T38] device_initial_probe+0x4a/0x60 [ 91.829845][ T38] bus_probe_device+0x131/0x390 [ 91.834672][ T38] device_add+0x25b5/0x2df0 [ 91.839154][ T38] usb_new_device+0x23e5/0x2fb0 [ 91.844588][ T38] hub_event+0x581d/0x72f0 [ 91.848997][ T38] process_one_work+0x1572/0x1ef0 [ 91.854028][ T38] worker_thread+0x111b/0x2460 [ 91.858776][ T38] kthread+0x4b5/0x4f0 [ 91.862826][ T38] ret_from_fork+0x35/0x40 [ 91.867266][ T38] ================================================================== [ 91.875322][ T38] Disabling lock debugging due to kernel taint [ 91.881457][ T38] Kernel panic - not syncing: panic_on_warn set ... [ 91.888043][ T38] CPU: 1 PID: 38 Comm: kworker/1:1 Tainted: G B 5.3.0-rc7+ #0 [ 91.898439][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 91.908486][ T38] Workqueue: usb_hub_wq hub_event [ 91.913512][ T38] Call Trace: [ 91.916787][ T38] dump_stack+0x191/0x1f0 [ 91.921126][ T38] panic+0x3c9/0xc1e [ 91.925014][ T38] kmsan_report+0x2ca/0x2d0 [ 91.929848][ T38] __msan_warning+0x75/0xe0 [ 91.935201][ T38] usb_hcd_flush_endpoint+0x320/0x570 [ 91.940556][ T38] usb_disable_device+0xfee/0x1150 [ 91.945656][ T38] usb_disconnect+0x51e/0xd60 [ 91.950337][ T38] hub_event+0x3fd0/0x72f0 [ 91.954928][ T38] ? dlm_recover_masters+0x108c/0x2050 [ 91.960394][ T38] ? kmsan_get_shadow_origin_ptr+0x71/0x4c0 [ 91.966275][ T38] ? led_work+0x720/0x720 [ 91.970590][ T38] ? led_work+0x720/0x720 [ 91.975337][ T38] process_one_work+0x1572/0x1ef0 [ 91.980628][ T38] worker_thread+0x189c/0x2460 [ 91.985417][ T38] kthread+0x4b5/0x4f0 [ 91.989464][ T38] ? process_one_work+0x1ef0/0x1ef0 [ 91.994818][ T38] ? kthread_blkcg+0xf0/0xf0 [ 91.999390][ T38] ret_from_fork+0x35/0x40 [ 92.005195][ T38] Kernel Offset: disabled [ 92.009536][ T38] Rebooting in 86400 seconds..