Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 15.422615][ C0] random: crng init done [ 15.426893][ C0] random: 7 urandom warning(s) missed due to ratelimiting [ 23.462592][ T379] can: request_module (can-proto-0) failed. [ 23.782490][ T379] can: request_module (can-proto-0) failed. [ 23.792662][ T379] can: request_module (can-proto-7) failed. [ 23.801993][ T379] can: request_module (can-proto-0) failed. Warning: Permanently added '10.128.1.49' (ECDSA) to the list of known hosts. 2020/04/01 13:15:33 parsed 1 programs 2020/04/01 13:15:33 executed programs: 0 [ 30.982264][ T522] cgroup: Unknown subsys name 'perf_event' [ 30.984545][ T524] cgroup: Unknown subsys name 'perf_event' [ 30.995614][ T522] cgroup: Unknown subsys name 'net_cls' [ 30.995777][ T524] cgroup: Unknown subsys name 'net_cls' [ 31.007751][ T526] cgroup: Unknown subsys name 'perf_event' [ 31.010588][ T528] cgroup: Unknown subsys name 'perf_event' [ 31.013750][ T526] cgroup: Unknown subsys name 'net_cls' [ 31.024561][ T528] cgroup: Unknown subsys name 'net_cls' [ 31.037252][ T532] cgroup: Unknown subsys name 'perf_event' [ 31.038385][ T533] cgroup: Unknown subsys name 'perf_event' [ 31.045793][ T532] cgroup: Unknown subsys name 'net_cls' [ 31.074671][ T533] cgroup: Unknown subsys name 'net_cls' [ 39.091854][ T17] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 39.102048][ T95] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 39.181879][ T83] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 39.282024][ T3194] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 39.311977][ T167] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 39.381877][ T12] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 39.492062][ T95] usb 2-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.501260][ T95] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.501878][ T17] usb 3-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.509337][ T95] usb 2-1: Product: syz [ 39.518426][ T17] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.522586][ T95] usb 2-1: Manufacturer: syz [ 39.522598][ T95] usb 2-1: SerialNumber: syz [ 39.539860][ T17] usb 3-1: Product: syz [ 39.544098][ T17] usb 3-1: Manufacturer: syz [ 39.548704][ T17] usb 3-1: SerialNumber: syz [ 39.562753][ T95] usb 2-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.570920][ T95] ath9k_debug ath9k_hif_usb_probe, 1316 [ 39.591852][ T83] usb 5-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.600967][ T83] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.609340][ T83] usb 5-1: Product: syz [ 39.613560][ T83] usb 5-1: Manufacturer: syz [ 39.618151][ T83] usb 5-1: SerialNumber: syz [ 39.623526][ T17] usb 3-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.631676][ T17] ath9k_debug ath9k_hif_usb_probe, 1316 [ 39.656500][ T17] ath9k_debug ath9k_hif_usb_firmware_cb, 1171 [ 39.656551][ T95] ath9k_debug ath9k_hif_usb_firmware_cb, 1171 [ 39.662804][ T17] ath9k_debug ath9k_hif_usb_firmware_cb, 1183 [ 39.675038][ T95] ath9k_debug ath9k_hif_usb_firmware_cb, 1183 [ 39.683228][ T83] usb 5-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.691318][ T83] ath9k_debug ath9k_hif_usb_probe, 1316 [ 39.700091][ T83] ath9k_debug ath9k_hif_usb_firmware_cb, 1171 [ 39.706359][ T83] ath9k_debug ath9k_hif_usb_firmware_cb, 1183 [ 39.712608][ T3194] usb 1-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.721709][ T3194] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.729739][ T3194] usb 1-1: Product: syz [ 39.733970][ T3194] usb 1-1: Manufacturer: syz [ 39.738557][ T3194] usb 1-1: SerialNumber: syz [ 39.751864][ T167] usb 6-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.760982][ T167] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.769148][ T167] usb 6-1: Product: syz [ 39.773437][ T167] usb 6-1: Manufacturer: syz [ 39.778018][ T167] usb 6-1: SerialNumber: syz [ 39.782572][ T3194] usb 1-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.782588][ T3194] ath9k_debug ath9k_hif_usb_probe, 1316 [ 39.785156][ T3194] ath9k_debug ath9k_hif_usb_firmware_cb, 1171 [ 39.802582][ T3194] ath9k_debug ath9k_hif_usb_firmware_cb, 1183 [ 39.831876][ T12] usb 4-1: New USB device found, idVendor=0cf3, idProduct=9271, bcdDevice= 1.08 [ 39.841111][ T12] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.849284][ T12] usb 4-1: Product: syz [ 39.853496][ T12] usb 4-1: Manufacturer: syz [ 39.858082][ T12] usb 4-1: SerialNumber: syz [ 39.863453][ T167] usb 6-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.871615][ T167] ath9k_debug ath9k_hif_usb_probe, 1316 [ 39.885632][ T167] ath9k_debug ath9k_hif_usb_firmware_cb, 1171 [ 39.891790][ T167] ath9k_debug ath9k_hif_usb_firmware_cb, 1183 [ 39.922403][ T12] usb 4-1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested [ 39.930497][ T12] ath9k_debug ath9k_hif_usb_probe, 1316 [ 39.939542][ T12] ath9k_debug ath9k_hif_usb_firmware_cb, 1171 [ 39.945798][ T12] ath9k_debug ath9k_hif_usb_firmware_cb, 1183 [ 40.281671][ T17] usb 3-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 40.290638][ T17] ath9k_debug ath9k_hif_usb_alloc_urbs, 957 [ 40.296591][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.304795][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.314852][ T17] Workqueue: events request_firmware_work_func [ 40.321072][ T17] Call Trace: [ 40.324354][ T17] dump_stack+0xef/0x16e [ 40.328589][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.334738][ T17] ath9k_hif_usb_alloc_urbs+0x3a/0x9e5 [ 40.340213][ T17] ? ath9k_hif_usb_download_fw+0x34d/0x35f [ 40.346015][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.352164][ T17] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 40.357802][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.364038][ T17] request_firmware_work_func+0x126/0x242 [ 40.369759][ T17] ? request_firmware_into_buf+0x90/0x90 [ 40.375387][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.380931][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.386206][ T17] process_one_work+0x94b/0x1620 [ 40.391164][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.396532][ T17] ? do_raw_spin_lock+0x129/0x290 [ 40.401561][ T17] worker_thread+0x96/0xe20 [ 40.406052][ T17] ? process_one_work+0x1620/0x1620 [ 40.411230][ T17] kthread+0x318/0x420 [ 40.415284][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 40.420642][ T17] ret_from_fork+0x24/0x30 [ 40.425902][ T17] ath9k_debug ath9k_hif_usb_alloc_reg_in_urbs, 900 [ 40.431859][ T95] usb 2-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 40.432468][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.441344][ T95] ath9k_debug ath9k_hif_usb_alloc_urbs, 957 [ 40.449466][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.449484][ T17] Workqueue: events request_firmware_work_func [ 40.449491][ T17] Call Trace: [ 40.449507][ T17] dump_stack+0xef/0x16e [ 40.449520][ T17] ath9k_hif_usb_alloc_urbs+0x67c/0x9e5 [ 40.449531][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.449546][ T17] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 40.497075][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.503484][ T17] request_firmware_work_func+0x126/0x242 [ 40.509217][ T17] ? request_firmware_into_buf+0x90/0x90 [ 40.514836][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.520367][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.525640][ T17] process_one_work+0x94b/0x1620 [ 40.530581][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.536026][ T17] ? do_raw_spin_lock+0x129/0x290 [ 40.541163][ T17] worker_thread+0x96/0xe20 [ 40.545658][ T17] ? process_one_work+0x1620/0x1620 [ 40.550843][ T17] kthread+0x318/0x420 [ 40.554899][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 40.560253][ T17] ret_from_fork+0x24/0x30 [ 40.564665][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.572818][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.581759][ T83] usb 5-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 40.582882][ T95] Workqueue: events request_firmware_work_func [ 40.582891][ T95] Call Trace: [ 40.582907][ T95] dump_stack+0xef/0x16e [ 40.582922][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.582931][ T95] ath9k_hif_usb_alloc_urbs+0x3a/0x9e5 [ 40.582947][ T95] ? ath9k_hif_usb_download_fw+0x34d/0x35f [ 40.591901][ T83] ath9k_debug ath9k_hif_usb_alloc_urbs, 957 [ 40.598005][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.598020][ T95] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 40.641116][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.647365][ T95] request_firmware_work_func+0x126/0x242 [ 40.653101][ T95] ? request_firmware_into_buf+0x90/0x90 [ 40.658722][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.664431][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.669711][ T95] process_one_work+0x94b/0x1620 [ 40.674636][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.679992][ T95] ? do_raw_spin_lock+0x129/0x290 [ 40.685000][ T95] worker_thread+0x96/0xe20 [ 40.689504][ T95] ? process_one_work+0x1620/0x1620 [ 40.694684][ T95] kthread+0x318/0x420 [ 40.698737][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 40.704091][ T95] ret_from_fork+0x24/0x30 [ 40.708500][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.709706][ T95] ath9k_debug ath9k_hif_usb_alloc_reg_in_urbs, 900 [ 40.716647][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.716665][ T83] Workqueue: events request_firmware_work_func [ 40.716673][ T83] Call Trace: [ 40.716688][ T83] dump_stack+0xef/0x16e [ 40.716702][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.716712][ T83] ath9k_hif_usb_alloc_urbs+0x3a/0x9e5 [ 40.716723][ T83] ? ath9k_hif_usb_download_fw+0x34d/0x35f [ 40.716733][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.716749][ T83] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 40.776391][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.782536][ T83] request_firmware_work_func+0x126/0x242 [ 40.788237][ T83] ? request_firmware_into_buf+0x90/0x90 [ 40.793852][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.799380][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.804660][ T83] process_one_work+0x94b/0x1620 [ 40.809584][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.814952][ T83] ? do_raw_spin_lock+0x129/0x290 [ 40.819969][ T83] worker_thread+0x96/0xe20 [ 40.824467][ T83] ? process_one_work+0x1620/0x1620 [ 40.829655][ T83] kthread+0x318/0x420 [ 40.833708][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 40.839066][ T83] ret_from_fork+0x24/0x30 [ 40.843481][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.851630][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.861789][ T95] Workqueue: events request_firmware_work_func [ 40.867941][ T95] Call Trace: [ 40.871234][ T95] dump_stack+0xef/0x16e [ 40.873860][ T83] ath9k_debug ath9k_hif_usb_alloc_reg_in_urbs, 900 [ 40.875480][ T95] ath9k_hif_usb_alloc_urbs+0x67c/0x9e5 [ 40.875492][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.875507][ T95] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 40.899276][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 40.905422][ T95] request_firmware_work_func+0x126/0x242 [ 40.911133][ T95] ? request_firmware_into_buf+0x90/0x90 [ 40.916764][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.922299][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.927572][ T95] process_one_work+0x94b/0x1620 [ 40.932499][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.937948][ T95] ? do_raw_spin_lock+0x129/0x290 [ 40.943196][ T95] worker_thread+0x96/0xe20 [ 40.947713][ T95] ? process_one_work+0x1620/0x1620 [ 40.952904][ T95] kthread+0x318/0x420 [ 40.957108][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 40.962486][ T95] ret_from_fork+0x24/0x30 [ 40.967433][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 40.971036][ T3241] usb 2-1: USB disconnect, device number 2 [ 40.975583][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.975601][ T83] Workqueue: events request_firmware_work_func [ 40.975613][ T83] Call Trace: [ 41.003832][ T83] dump_stack+0xef/0x16e [ 41.008077][ T83] ath9k_hif_usb_alloc_urbs+0x67c/0x9e5 [ 41.013630][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.019783][ T83] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 41.025413][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.031558][ T83] request_firmware_work_func+0x126/0x242 [ 41.037272][ T83] ? request_firmware_into_buf+0x90/0x90 [ 41.042896][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.048441][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.053718][ T83] process_one_work+0x94b/0x1620 [ 41.058638][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.063990][ T83] ? do_raw_spin_lock+0x129/0x290 [ 41.069010][ T83] worker_thread+0x96/0xe20 [ 41.073522][ T83] ? process_one_work+0x1620/0x1620 [ 41.078712][ T83] kthread+0x318/0x420 [ 41.082764][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 41.088119][ T83] ret_from_fork+0x24/0x30 [ 41.094317][ T3194] usb 1-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 41.103773][ T3194] ath9k_debug ath9k_hif_usb_alloc_urbs, 957 [ 41.109689][ T3194] CPU: 1 PID: 3194 Comm: kworker/1:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.118304][ T3194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.128367][ T3194] Workqueue: events request_firmware_work_func [ 41.134507][ T3194] Call Trace: [ 41.137799][ T3194] dump_stack+0xef/0x16e [ 41.142041][ T3194] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.148173][ T3194] ath9k_hif_usb_alloc_urbs+0x3a/0x9e5 [ 41.153616][ T3194] ? ath9k_hif_usb_download_fw+0x34d/0x35f [ 41.159429][ T3194] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.165564][ T3194] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 41.171175][ T3194] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.177331][ T3194] request_firmware_work_func+0x126/0x242 [ 41.183075][ T3194] ? request_firmware_into_buf+0x90/0x90 [ 41.188726][ T3194] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.191694][ T3249] usb 5-1: USB disconnect, device number 2 [ 41.194282][ T3194] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.194296][ T3194] process_one_work+0x94b/0x1620 [ 41.194312][ T3194] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.215719][ T3194] ? do_raw_spin_lock+0x129/0x290 [ 41.220751][ T3194] worker_thread+0x96/0xe20 [ 41.225463][ T3194] ? process_one_work+0x1620/0x1620 [ 41.230659][ T3194] kthread+0x318/0x420 [ 41.234727][ T3194] ? kthread_create_on_node+0xf0/0xf0 [ 41.240228][ T3194] ret_from_fork+0x24/0x30 [ 41.247046][ T83] ath9k_debug ath9k_hif_usb_dealloc_reg_in_urbs, 889 [ 41.253888][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.262053][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.272225][ T83] Workqueue: events request_firmware_work_func [ 41.278376][ T83] Call Trace: [ 41.281675][ T83] dump_stack+0xef/0x16e [ 41.285910][ T83] ath9k_hif_usb_alloc_urbs+0x97b/0x9e5 [ 41.291442][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.297582][ T83] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 41.303223][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.309385][ T83] request_firmware_work_func+0x126/0x242 [ 41.315096][ T83] ? request_firmware_into_buf+0x90/0x90 [ 41.320723][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.327571][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.332845][ T83] process_one_work+0x94b/0x1620 [ 41.337780][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.343158][ T83] ? do_raw_spin_lock+0x129/0x290 [ 41.348176][ T83] worker_thread+0x96/0xe20 [ 41.352665][ T83] ? process_one_work+0x1620/0x1620 [ 41.357851][ T83] kthread+0x318/0x420 [ 41.361912][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 41.367264][ T83] ret_from_fork+0x24/0x30 [ 41.374163][ T83] usb 5-1: ath9k_htc: Unable to allocate URBs [ 41.380263][ T83] ath9k_debug ath9k_hif_usb_firmware_cb, 1218 [ 41.386422][ T83] ath9k_debug ath9k_htc_hw_free, 493 [ 41.392794][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.400947][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.411020][ T83] Workqueue: events request_firmware_work_func [ 41.417174][ T83] Call Trace: [ 41.420452][ T83] dump_stack+0xef/0x16e [ 41.424694][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.430841][ T83] ath9k_htc_hw_free+0x26/0x2f [ 41.435588][ T83] ath9k_hif_usb_firmware_cb+0x45c/0x515 [ 41.441232][ T83] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.447395][ T83] request_firmware_work_func+0x126/0x242 [ 41.453108][ T83] ? request_firmware_into_buf+0x90/0x90 [ 41.458726][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.464263][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.469658][ T83] process_one_work+0x94b/0x1620 [ 41.474612][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.479989][ T83] ? do_raw_spin_lock+0x129/0x290 [ 41.485009][ T83] worker_thread+0x96/0xe20 [ 41.489500][ T83] ? process_one_work+0x1620/0x1620 [ 41.494190][ T3252] usb 1-1: USB disconnect, device number 2 [ 41.494687][ T83] kthread+0x318/0x420 [ 41.504544][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 41.509928][ T83] ret_from_fork+0x24/0x30 [ 41.516282][ T3249] ath9k_debug ath9k_hif_usb_disconnect, 1357 [ 41.516667][ T3194] usb 1-1: ath9k_htc: Unable to allocate URBs [ 41.522508][ T3249] usb 5-1: ath9k_htc: USB layer deinitialized [ 41.528428][ T3194] ath9k_debug ath9k_hif_usb_firmware_cb, 1218 [ 41.534980][ T167] usb 6-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 41.534988][ T167] ath9k_debug ath9k_hif_usb_alloc_urbs, 957 [ 41.535002][ T167] CPU: 0 PID: 167 Comm: kworker/0:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.535010][ T167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.535027][ T167] Workqueue: events request_firmware_work_func [ 41.535035][ T167] Call Trace: [ 41.535049][ T167] dump_stack+0xef/0x16e [ 41.535064][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.535076][ T167] ath9k_hif_usb_alloc_urbs+0x3a/0x9e5 [ 41.535088][ T167] ? ath9k_hif_usb_download_fw+0x34d/0x35f [ 41.535101][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.535113][ T167] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 41.535125][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.535139][ T167] request_firmware_work_func+0x126/0x242 [ 41.535153][ T167] ? request_firmware_into_buf+0x90/0x90 [ 41.535166][ T167] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.535178][ T167] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.535192][ T167] process_one_work+0x94b/0x1620 [ 41.535206][ T167] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.535219][ T167] ? do_raw_spin_lock+0x129/0x290 [ 41.535231][ T167] worker_thread+0x96/0xe20 [ 41.535244][ T167] ? process_one_work+0x1620/0x1620 [ 41.535255][ T167] kthread+0x318/0x420 [ 41.535267][ T167] ? kthread_create_on_node+0xf0/0xf0 [ 41.535280][ T167] ret_from_fork+0x24/0x30 [ 41.535765][ T167] ath9k_debug ath9k_hif_usb_alloc_reg_in_urbs, 900 [ 41.535777][ T167] CPU: 0 PID: 167 Comm: kworker/0:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.535789][ T167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.535802][ T167] Workqueue: events request_firmware_work_func [ 41.535808][ T167] Call Trace: [ 41.535820][ T167] dump_stack+0xef/0x16e [ 41.535832][ T167] ath9k_hif_usb_alloc_urbs+0x67c/0x9e5 [ 41.535845][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.535857][ T167] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 41.535869][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.535883][ T167] request_firmware_work_func+0x126/0x242 [ 41.535896][ T167] ? request_firmware_into_buf+0x90/0x90 [ 41.535908][ T167] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.535919][ T167] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.535932][ T167] process_one_work+0x94b/0x1620 [ 41.535945][ T167] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.535957][ T167] ? do_raw_spin_lock+0x129/0x290 [ 41.535970][ T167] worker_thread+0x96/0xe20 [ 41.535983][ T167] ? process_one_work+0x1620/0x1620 [ 41.535993][ T167] kthread+0x318/0x420 [ 41.536005][ T167] ? kthread_create_on_node+0xf0/0xf0 [ 41.536017][ T167] ret_from_fork+0x24/0x30 [ 41.621352][ T12] usb 4-1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008 [ 41.624407][ T3194] ath9k_debug ath9k_htc_hw_free, 493 [ 41.624422][ T3194] CPU: 1 PID: 3194 Comm: kworker/1:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.624428][ T3194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.624452][ T3194] Workqueue: events request_firmware_work_func [ 41.630598][ T12] ath9k_debug ath9k_hif_usb_alloc_urbs, 957 [ 41.636296][ T3194] Call Trace: [ 41.636318][ T3194] dump_stack+0xef/0x16e [ 41.636332][ T3194] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.636341][ T3194] ath9k_htc_hw_free+0x26/0x2f [ 41.636353][ T3194] ath9k_hif_usb_firmware_cb+0x45c/0x515 [ 41.636363][ T3194] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.636377][ T3194] request_firmware_work_func+0x126/0x242 [ 41.636388][ T3194] ? request_firmware_into_buf+0x90/0x90 [ 41.636406][ T3194] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.906825][ T3194] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.912099][ T3194] process_one_work+0x94b/0x1620 [ 41.917027][ T3194] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.922399][ T3194] ? do_raw_spin_lock+0x129/0x290 [ 41.927412][ T3194] worker_thread+0x96/0xe20 [ 41.931907][ T3194] ? process_one_work+0x1620/0x1620 [ 41.937095][ T3194] kthread+0x318/0x420 [ 41.941151][ T3194] ? kthread_create_on_node+0xf0/0xf0 [ 41.946507][ T3194] ret_from_fork+0x24/0x30 [ 41.950916][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.0-rc7-syzkaller #0 [ 41.952654][ T17] ath9k_htc 3-1:1.0: ath9k_htc: Target is unresponsive [ 41.959076][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.975970][ T12] Workqueue: events request_firmware_work_func [ 41.978743][ T17] ath9k_htc: Failed to initialize the device 2020/04/01 13:15:44 executed programs: 6 [ 41.982116][ T12] Call Trace: [ 41.982137][ T12] dump_stack+0xef/0x16e [ 41.982153][ T12] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.982165][ T12] ath9k_hif_usb_alloc_urbs+0x3a/0x9e5 [ 41.982176][ T12] ? ath9k_hif_usb_download_fw+0x34d/0x35f [ 41.982187][ T12] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.982197][ T12] ath9k_hif_usb_firmware_cb+0x221/0x515 [ 41.982207][ T12] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 41.982225][ T12] request_firmware_work_func+0x126/0x242 [ 41.988284][ T17] ath9k_debug ath9k_hif_usb_dealloc_urbs, 985 [ 41.991571][ T12] ? request_firmware_into_buf+0x90/0x90 [ 41.991584][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.991595][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.991609][ T12] process_one_work+0x94b/0x1620 [ 41.991621][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.991632][ T12] ? do_raw_spin_lock+0x129/0x290 [ 41.991642][ T12] worker_thread+0x96/0xe20 [ 41.991653][ T12] ? process_one_work+0x1620/0x1620 [ 41.991664][ T12] kthread+0x318/0x420 [ 41.991674][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 41.991688][ T12] ret_from_fork+0x24/0x30 [ 41.991961][ T3252] ath9k_debug ath9k_hif_usb_disconnect, 1357 [ 41.991987][ T3252] usb 1-1: ath9k_htc: USB layer deinitialized [ 41.995008][ T95] ath9k_htc 2-1:1.0: ath9k_htc: Target is unresponsive [ 41.997491][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.028102][ T95] ath9k_htc: Failed to initialize the device [ 42.032911][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.032931][ T17] Workqueue: events request_firmware_work_func [ 42.032938][ T17] Call Trace: [ 42.032956][ T17] dump_stack+0xef/0x16e [ 42.032971][ T17] ath9k_hif_usb_dealloc_urbs+0x26/0x70 [ 42.032982][ T17] ath9k_hif_usb_firmware_cb+0x379/0x515 [ 42.032993][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.033005][ T17] request_firmware_work_func+0x126/0x242 [ 42.033023][ T17] ? request_firmware_into_buf+0x90/0x90 [ 42.038747][ T95] ath9k_debug ath9k_hif_usb_dealloc_urbs, 985 [ 42.044816][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.044829][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.044841][ T17] process_one_work+0x94b/0x1620 [ 42.044855][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.044867][ T17] ? do_raw_spin_lock+0x129/0x290 [ 42.044884][ T17] worker_thread+0x96/0xe20 [ 42.221764][ T17] ? process_one_work+0x1620/0x1620 [ 42.226977][ T17] kthread+0x318/0x420 [ 42.231128][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 42.236499][ T17] ret_from_fork+0x24/0x30 [ 42.240907][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.242502][ T17] ath9k_debug ath9k_hif_usb_dealloc_reg_in_urbs, 889 [ 42.249061][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.265764][ T95] Workqueue: events request_firmware_work_func [ 42.271923][ T95] Call Trace: [ 42.275215][ T95] dump_stack+0xef/0x16e [ 42.279447][ T95] ath9k_hif_usb_dealloc_urbs+0x26/0x70 [ 42.284985][ T95] ath9k_hif_usb_firmware_cb+0x379/0x515 [ 42.290603][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.296743][ T95] request_firmware_work_func+0x126/0x242 [ 42.302462][ T95] ? request_firmware_into_buf+0x90/0x90 [ 42.308086][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.313619][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.318925][ T95] process_one_work+0x94b/0x1620 [ 42.323862][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.329224][ T95] ? do_raw_spin_lock+0x129/0x290 [ 42.334255][ T95] worker_thread+0x96/0xe20 [ 42.338857][ T95] ? process_one_work+0x1620/0x1620 [ 42.344674][ T95] kthread+0x318/0x420 [ 42.348752][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 42.354119][ T95] ret_from_fork+0x24/0x30 [ 42.358526][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.359043][ T95] ath9k_debug ath9k_hif_usb_dealloc_reg_in_urbs, 889 [ 42.366687][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.366708][ T17] Workqueue: events request_firmware_work_func [ 42.366714][ T17] Call Trace: [ 42.366735][ T17] dump_stack+0xef/0x16e [ 42.366754][ T17] ath9k_hif_usb_dealloc_urbs+0x4f/0x70 [ 42.402620][ T17] ath9k_hif_usb_firmware_cb+0x379/0x515 [ 42.408241][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.414380][ T17] request_firmware_work_func+0x126/0x242 [ 42.420100][ T17] ? request_firmware_into_buf+0x90/0x90 [ 42.425733][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.431265][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.436971][ T17] process_one_work+0x94b/0x1620 [ 42.441918][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.447314][ T17] ? do_raw_spin_lock+0x129/0x290 [ 42.452339][ T17] worker_thread+0x96/0xe20 [ 42.456833][ T17] ? process_one_work+0x1620/0x1620 [ 42.462134][ T17] kthread+0x318/0x420 [ 42.466216][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 42.471579][ T17] ret_from_fork+0x24/0x30 [ 42.476002][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.484161][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.494235][ T95] Workqueue: events request_firmware_work_func [ 42.500540][ T95] Call Trace: [ 42.503840][ T95] dump_stack+0xef/0x16e [ 42.508116][ T95] ath9k_hif_usb_dealloc_urbs+0x4f/0x70 [ 42.513680][ T95] ath9k_hif_usb_firmware_cb+0x379/0x515 [ 42.519326][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.525501][ T95] request_firmware_work_func+0x126/0x242 [ 42.531234][ T95] ? request_firmware_into_buf+0x90/0x90 [ 42.537029][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.542582][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.547883][ T95] process_one_work+0x94b/0x1620 [ 42.552841][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.558228][ T95] ? do_raw_spin_lock+0x129/0x290 [ 42.563272][ T95] worker_thread+0x96/0xe20 [ 42.567795][ T95] ? process_one_work+0x1620/0x1620 [ 42.573004][ T95] kthread+0x318/0x420 [ 42.577081][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 42.582466][ T95] ret_from_fork+0x24/0x30 [ 42.590242][ T167] ath9k_htc 6-1:1.0: ath9k_htc: Target is unresponsive [ 42.590742][ T3220] usb 3-1: USB disconnect, device number 2 [ 42.602397][ T167] ath9k_htc: Failed to initialize the device [ 42.609121][ T167] ath9k_debug ath9k_hif_usb_dealloc_urbs, 985 [ 42.613659][ T17] ath9k_debug ath9k_hif_usb_firmware_cb, 1218 [ 42.615432][ T167] CPU: 0 PID: 167 Comm: kworker/0:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.621904][ T17] ath9k_debug ath9k_htc_hw_free, 493 [ 42.630053][ T167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.630073][ T167] Workqueue: events request_firmware_work_func [ 42.651555][ T167] Call Trace: [ 42.654841][ T167] dump_stack+0xef/0x16e [ 42.659080][ T167] ath9k_hif_usb_dealloc_urbs+0x26/0x70 [ 42.664633][ T167] ath9k_hif_usb_firmware_cb+0x379/0x515 [ 42.670256][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.676396][ T167] request_firmware_work_func+0x126/0x242 [ 42.682146][ T167] ? request_firmware_into_buf+0x90/0x90 [ 42.687817][ T167] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.693352][ T167] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.698625][ T167] process_one_work+0x94b/0x1620 [ 42.703550][ T167] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.708905][ T167] ? do_raw_spin_lock+0x129/0x290 [ 42.713918][ T167] worker_thread+0x96/0xe20 [ 42.718424][ T167] ? process_one_work+0x1620/0x1620 [ 42.723622][ T167] kthread+0x318/0x420 [ 42.727679][ T167] ? kthread_create_on_node+0xf0/0xf0 [ 42.733039][ T167] ret_from_fork+0x24/0x30 [ 42.737448][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.737481][ T167] ath9k_debug ath9k_hif_usb_dealloc_reg_in_urbs, 889 [ 42.745597][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.745616][ T17] Workqueue: events request_firmware_work_func [ 42.745628][ T17] Call Trace: [ 42.771864][ T17] dump_stack+0xef/0x16e [ 42.776104][ T17] ath9k_htc_hw_free+0x26/0x2f [ 42.780872][ T17] ath9k_hif_usb_firmware_cb+0x45c/0x515 [ 42.786609][ T17] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.792753][ T17] request_firmware_work_func+0x126/0x242 [ 42.798458][ T17] ? request_firmware_into_buf+0x90/0x90 [ 42.804078][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.809607][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.814884][ T17] process_one_work+0x94b/0x1620 [ 42.819811][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.825172][ T17] ? do_raw_spin_lock+0x129/0x290 [ 42.830185][ T17] worker_thread+0x96/0xe20 [ 42.834690][ T17] ? process_one_work+0x1620/0x1620 [ 42.839879][ T17] kthread+0x318/0x420 [ 42.843942][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 42.849301][ T17] ret_from_fork+0x24/0x30 [ 42.853722][ T167] CPU: 0 PID: 167 Comm: kworker/0:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 42.861968][ T167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.871199][ T3220] ath9k_debug ath9k_hif_usb_disconnect, 1357 [ 42.872034][ T167] Workqueue: events request_firmware_work_func [ 42.872042][ T167] Call Trace: [ 42.872056][ T167] dump_stack+0xef/0x16e [ 42.872074][ T167] ath9k_hif_usb_dealloc_urbs+0x4f/0x70 [ 42.878050][ T3220] usb 3-1: ath9k_htc: USB layer deinitialized [ 42.884178][ T167] ath9k_hif_usb_firmware_cb+0x379/0x515 [ 42.884190][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 42.884202][ T167] request_firmware_work_func+0x126/0x242 [ 42.884214][ T167] ? request_firmware_into_buf+0x90/0x90 [ 42.884226][ T167] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 42.884241][ T167] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 42.897921][ T3267] usb 6-1: USB disconnect, device number 2 [ 42.903323][ T167] process_one_work+0x94b/0x1620 [ 42.903338][ T167] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.903351][ T167] ? do_raw_spin_lock+0x129/0x290 [ 42.903363][ T167] worker_thread+0x96/0xe20 [ 42.903374][ T167] ? process_one_work+0x1620/0x1620 [ 42.903385][ T167] kthread+0x318/0x420 [ 42.903400][ T167] ? kthread_create_on_node+0xf0/0xf0 [ 42.914785][ T21] usb 4-1: USB disconnect, device number 2 [ 42.915168][ T167] ret_from_fork+0x24/0x30 [ 42.990303][ T12] usb 4-1: ath9k_htc: Unable to allocate URBs [ 42.996474][ T12] ath9k_debug ath9k_hif_usb_firmware_cb, 1218 [ 43.002613][ T12] ath9k_debug ath9k_htc_hw_free, 493 [ 43.007914][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.6.0-rc7-syzkaller #0 [ 43.016065][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.026196][ T12] Workqueue: events request_firmware_work_func [ 43.032332][ T12] Call Trace: [ 43.035607][ T12] dump_stack+0xef/0x16e [ 43.039841][ T12] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 43.046085][ T12] ath9k_htc_hw_free+0x26/0x2f [ 43.050840][ T12] ath9k_hif_usb_firmware_cb+0x45c/0x515 [ 43.056479][ T12] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 43.062629][ T12] request_firmware_work_func+0x126/0x242 [ 43.068332][ T12] ? request_firmware_into_buf+0x90/0x90 [ 43.073961][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 43.079489][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 43.084759][ T12] process_one_work+0x94b/0x1620 [ 43.089699][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.095260][ T12] ? do_raw_spin_lock+0x129/0x290 [ 43.100293][ T12] worker_thread+0x96/0xe20 [ 43.104961][ T12] ? process_one_work+0x1620/0x1620 [ 43.110175][ T12] kthread+0x318/0x420 [ 43.114239][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 43.119609][ T12] ret_from_fork+0x24/0x30 [ 43.124545][ T167] ath9k_debug ath9k_hif_usb_firmware_cb, 1218 [ 43.129785][ T21] ath9k_debug ath9k_hif_usb_disconnect, 1357 [ 43.130622][ T167] ath9k_debug ath9k_htc_hw_free, 493 [ 43.136675][ T21] usb 4-1: ath9k_htc: USB layer deinitialized [ 43.141969][ T167] CPU: 0 PID: 167 Comm: kworker/0:3 Not tainted 5.6.0-rc7-syzkaller #0 [ 43.141976][ T167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.141994][ T167] Workqueue: events request_firmware_work_func [ 43.172582][ T167] Call Trace: [ 43.175872][ T167] dump_stack+0xef/0x16e [ 43.180106][ T167] ath9k_htc_hw_free+0x26/0x2f [ 43.184854][ T167] ath9k_hif_usb_firmware_cb+0x45c/0x515 [ 43.190469][ T167] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 43.196609][ T167] request_firmware_work_func+0x126/0x242 [ 43.202314][ T167] ? request_firmware_into_buf+0x90/0x90 [ 43.207931][ T167] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 43.213457][ T167] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 43.218727][ T167] process_one_work+0x94b/0x1620 [ 43.223658][ T167] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.229025][ T167] ? do_raw_spin_lock+0x129/0x290 [ 43.234073][ T167] worker_thread+0x96/0xe20 [ 43.238587][ T167] ? process_one_work+0x1620/0x1620 [ 43.243791][ T167] kthread+0x318/0x420 [ 43.247860][ T167] ? kthread_create_on_node+0xf0/0xf0 [ 43.253219][ T167] ret_from_fork+0x24/0x30 [ 43.258287][ T95] ath9k_debug ath9k_hif_usb_firmware_cb, 1218 [ 43.260866][ T3267] ath9k_debug ath9k_hif_usb_disconnect, 1357 [ 43.264430][ T95] ath9k_debug ath9k_htc_hw_free, 493 [ 43.270399][ T3267] usb 6-1: ath9k_htc: USB layer deinitialized [ 43.275733][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc7-syzkaller #0 [ 43.275745][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.291129][ T3220] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 43.300129][ T95] Workqueue: events request_firmware_work_func [ 43.300138][ T95] Call Trace: [ 43.300156][ T95] dump_stack+0xef/0x16e [ 43.300171][ T95] ath9k_htc_hw_free+0x26/0x2f [ 43.300183][ T95] ath9k_hif_usb_firmware_cb+0x45c/0x515 [ 43.300196][ T95] ? ath9k_hif_usb_disconnect.cold+0x121/0x121 [ 43.300208][ T95] request_firmware_work_func+0x126/0x242 [ 43.300219][ T95] ? request_firmware_into_buf+0x90/0x90 [ 43.300238][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 43.309509][ T3267] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN [ 43.313825][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 43.317086][ T3267] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 43.321315][ T95] process_one_work+0x94b/0x1620 [ 43.326054][ T3267] CPU: 1 PID: 3267 Comm: kworker/1:5 Not tainted 5.6.0-rc7-syzkaller #0 [ 43.331674][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.337807][ T3267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.343525][ T95] ? do_raw_spin_lock+0x129/0x290 [ 43.349136][ T3267] Workqueue: usb_hub_wq hub_event [ 43.354666][ T95] worker_thread+0x96/0xe20 [ 43.365661][ T3267] RIP: 0010:__list_del_entry_valid+0x81/0xef [ 43.370923][ T95] ? process_one_work+0x1620/0x1620 [ 43.379312][ T3267] Code: 0f 84 df 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 97 00 00 00 49 8d 7d [ 43.384228][ T95] kthread+0x318/0x420 [ 43.392522][ T3267] RSP: 0018:ffff8881bd317990 EFLAGS: 00010246 [ 43.397876][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 43.407910][ T3267] RAX: dffffc0000000000 RBX: ffff8881d248a010 RCX: 0000000000000000 [ 43.407923][ T3267] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d248a1b8 [ 43.412936][ T95] ret_from_fork+0x24/0x30 [ 43.417928][ T3267] RBP: ffff8881d248a1b0 R08: ffffffff892fb3d0 R09: fffffbfff0e86431 [ 43.422779][ T3241] ath9k_debug ath9k_hif_usb_disconnect, 1357 [ 43.428405][ T3267] R10: ffff8881bd3179b0 R11: ffffffff87432187 R12: 0000000000000000 [ 43.433655][ T3241] usb 2-1: ath9k_htc: USB layer deinitialized [ 43.453182][ T3267] R13: ffff8881d2480000 R14: ffff8881d248a1b8 R15: ffff8881d5cbc1a0 [ 43.453191][ T3267] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 43.453199][ T3267] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.453205][ T3267] CR2: 00007ffe6d602698 CR3: 00000001cfce2000 CR4: 00000000001406e0 [ 43.453210][ T3267] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.453215][ T3267] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.453219][ T3267] Call Trace: [ 43.453242][ T3267] device_del+0x4ca/0xd30 [ 43.571988][ T3267] ? device_create_with_groups+0x120/0x120 [ 43.577787][ T3267] ? wait_for_completion+0x3c0/0x3c0 [ 43.583063][ T3267] device_unregister+0x22/0xc0 [ 43.587832][ T3267] usb_remove_ep_devs+0x3e/0x80 [ 43.592684][ T3267] usb_disconnect+0x4bb/0x900 [ 43.597350][ T3267] hub_event+0x1a1d/0x4300 [ 43.601756][ T3267] ? hub_port_debounce+0x350/0x350 [ 43.606854][ T3267] ? find_held_lock+0x2d/0x110 [ 43.611618][ T3267] ? mark_held_locks+0xe0/0xe0 [ 43.616367][ T3267] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 43.621897][ T3267] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 43.627168][ T3267] process_one_work+0x94b/0x1620 [ 43.632101][ T3267] ? pwq_dec_nr_in_flight+0x310/0x310 [ 43.637459][ T3267] ? do_raw_spin_lock+0x129/0x290 [ 43.642471][ T3267] worker_thread+0x96/0xe20 [ 43.646967][ T3267] ? process_one_work+0x1620/0x1620 [ 43.652149][ T3267] kthread+0x318/0x420 [ 43.656204][ T3267] ? kthread_create_on_node+0xf0/0xf0 [ 43.661559][ T3267] ret_from_fork+0x24/0x30 [ 43.665955][ T3267] Modules linked in: [ 43.670053][ T3267] ---[ end trace 36d234917fe7a90e ]--- [ 43.675578][ T3267] RIP: 0010:__list_del_entry_valid+0x81/0xef [ 43.681589][ T3267] Code: 0f 84 df 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e0 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 97 00 00 00 49 8d 7d [ 43.701242][ T3267] RSP: 0018:ffff8881bd317990 EFLAGS: 00010246 [ 43.707314][ T3267] RAX: dffffc0000000000 RBX: ffff8881d248a010 RCX: 0000000000000000 [ 43.715357][ T3267] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d248a1b8 [ 43.723458][ T3267] RBP: ffff8881d248a1b0 R08: ffffffff892fb3d0 R09: fffffbfff0e86431 [ 43.731600][ T3267] R10: ffff8881bd3179b0 R11: ffffffff87432187 R12: 0000000000000000 [ 43.739627][ T3267] R13: ffff8881d2480000 R14: ffff8881d248a1b8 R15: ffff8881d5cbc1a0 [ 43.747628][ T3267] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 43.756653][ T3267] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.763306][ T3267] CR2: 00007ffe6d602698 CR3: 0000000007021000 CR4: 00000000001406e0 [ 43.771339][ T3267] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.779309][ T3267] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.787329][ T3267] Kernel panic - not syncing: Fatal exception [ 43.793960][ T3267] Kernel Offset: disabled [ 43.798278][ T3267] Rebooting in 86400 seconds..