Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts. executing program [ 26.299435][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 26.539406][ T22] usb 1-1: Using ep0 maxpacket: 16 [ 26.659512][ T22] usb 1-1: config 2 has an invalid interface number: 241 but max is 1 [ 26.667789][ T22] usb 1-1: config 2 has an invalid interface descriptor of length 2, skipping [ 26.676850][ T22] usb 1-1: config 2 contains an unexpected descriptor of type 0x1, skipping [ 26.685587][ T22] usb 1-1: config 2 has an invalid interface descriptor of length 2, skipping [ 26.694467][ T22] usb 1-1: config 2 has no interface number 1 [ 26.700585][ T22] usb 1-1: config 2 interface 241 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 5 [ 26.713977][ T22] usb 1-1: config 2 interface 0 has no altsetting 0 [ 26.879488][ T22] usb 1-1: New USB device found, idVendor=2040, idProduct=c60a, bcdDevice=88.2e [ 26.888547][ T22] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 26.896576][ T22] usb 1-1: Product: syz [ 26.900764][ T22] usb 1-1: Manufacturer: syz [ 26.905337][ T22] usb 1-1: SerialNumber: syz executing program [ 27.242305][ T22] usb 1-1: dvb_usb_v2: found a 'HCW 126xxx' in warm state [ 27.250816][ T22] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 27.261576][ T22] dvbdev: DVB: registering new adapter (HCW 126xxx) [ 27.268385][ T22] usb 1-1: media controller created [ 27.277777][ T22] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 27.291549][ T22] usb 1-1: selecting invalid altsetting 1 [ 27.297315][ T22] set interface failed [ 27.297322][ T22] ------------[ cut here ]------------ [ 27.306847][ T22] DEBUG_LOCKS_WARN_ON(lock->magic != lock) [ 27.306884][ T22] WARNING: CPU: 1 PID: 22 at kernel/locking/mutex.c:941 __mutex_lock+0xd2c/0x1360 [ 27.321822][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 27.328575][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc1-syzkaller #0 [ 27.336703][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.346744][ T22] Workqueue: usb_hub_wq hub_event [ 27.351742][ T22] Call Trace: [ 27.355027][ T22] dump_stack+0xef/0x16e [ 27.359246][ T22] ? __mutex_lock+0xc80/0x1360 [ 27.363996][ T22] panic+0x2aa/0x6e1 [ 27.367864][ T22] ? add_taint.cold+0x16/0x16 [ 27.372520][ T22] ? __probe_kernel_read+0x188/0x1d0 [ 27.377776][ T22] ? __warn.cold+0x14/0x30 [ 27.382166][ T22] ? __warn+0xd5/0x1c8 [ 27.386209][ T22] ? __mutex_lock+0xd2c/0x1360 [ 27.390958][ T22] __warn.cold+0x2f/0x30 [ 27.395178][ T22] ? __mutex_lock+0xd2c/0x1360 [ 27.399926][ T22] report_bug+0x27b/0x2f0 [ 27.404235][ T22] do_error_trap+0x12b/0x1e0 [ 27.408810][ T22] ? __mutex_lock+0xd2c/0x1360 [ 27.413554][ T22] do_invalid_op+0x32/0x40 [ 27.418845][ T22] ? __mutex_lock+0xd2c/0x1360 [ 27.423672][ T22] invalid_op+0x23/0x30 [ 27.427812][ T22] RIP: 0010:__mutex_lock+0xd2c/0x1360 [ 27.433172][ T22] Code: d2 0f 85 f1 05 00 00 44 8b 05 a0 48 2d 02 45 85 c0 0f 85 0f f4 ff ff 48 c7 c6 e0 7e c6 85 48 c7 c7 e0 7c c6 85 e8 bc 83 99 fb <0f> 0b e9 f5 f3 ff ff 65 48 8b 1c 25 00 0f 02 00 be 08 00 00 00 48 [ 27.452872][ T22] RSP: 0018:ffff8881d8c36ee0 EFLAGS: 00010286 [ 27.458919][ T22] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 27.466882][ T22] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103b186dce [ 27.474846][ T22] RBP: ffff8881d8c37050 R08: ffff8881da24e200 R09: fffffbfff0ddeb0d [ 27.482796][ T22] R10: fffffbfff0ddeb0c R11: ffffffff86ef5863 R12: 0000000000000000 [ 27.490752][ T22] R13: dffffc0000000000 R14: ffff8881cf70d1c8 R15: ffff8881cf70d1c8 [ 27.498724][ T22] ? vprintk_func+0x7d/0x113 [ 27.503308][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 27.508326][ T22] ? find_held_lock+0x2d/0x110 [ 27.513087][ T22] ? vprintk_emit+0xe2/0x3d0 [ 27.517673][ T22] ? mutex_trylock+0x2e0/0x2e0 [ 27.522419][ T22] ? mark_lock+0xbc/0x1160 [ 27.526851][ T22] ? mark_held_locks+0x9f/0xe0 [ 27.531599][ T22] ? vprintk_emit+0x112/0x3d0 [ 27.537094][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 27.542375][ T22] ? mxl111sf_ctrl_msg+0xb8/0x210 [ 27.547382][ T22] mxl111sf_ctrl_msg+0xb8/0x210 [ 27.552214][ T22] mxl111sf_write_reg+0x8b/0x120 [ 27.557140][ T22] ? mxl111sf_frontend_attach_mercury_mh+0x940/0x940 [ 27.563975][ T22] ? usb_set_interface+0x79c/0xa50 [ 27.569066][ T22] mxl1x1sf_soft_reset+0x6b/0x190 [ 27.574177][ T22] mxl111sf_lg2160_frontend_attach+0x283/0x900 [ 27.580317][ T22] ? mxl111sf_frontend_attach_atsc_mh+0x70/0x70 [ 27.586541][ T22] dvb_usbv2_probe.cold+0x1e78/0x25d7 [ 27.592188][ T22] ? dvb_usb_start_feed+0xb60/0xb60 [ 27.597389][ T22] ? rpm_callback+0x230/0x230 [ 27.602064][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 27.607362][ T22] ? __pm_runtime_resume+0x111/0x180 [ 27.613304][ T22] usb_probe_interface+0x305/0x7a0 [ 27.618441][ T22] ? usb_probe_device+0x100/0x100 [ 27.623486][ T22] really_probe+0x281/0x6d0 [ 27.628008][ T22] driver_probe_device+0x104/0x210 [ 27.633097][ T22] __device_attach_driver+0x1c2/0x220 [ 27.638787][ T22] ? driver_allows_async_probing+0x160/0x160 [ 27.644763][ T22] bus_for_each_drv+0x162/0x1e0 [ 27.649724][ T22] ? bus_rescan_devices+0x20/0x20 [ 27.654740][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 27.660534][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 27.665796][ T22] __device_attach+0x217/0x360 [ 27.670541][ T22] ? device_bind_driver+0xd0/0xd0 [ 27.678634][ T22] bus_probe_device+0x1e4/0x290 [ 27.683485][ T22] device_add+0x1480/0x1c20 [ 27.687972][ T22] ? wait_for_completion+0x3c0/0x3c0 [ 27.693249][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 27.699313][ T22] ? create_intf_ep_devs+0x1ba/0x230 [ 27.704587][ T22] usb_set_configuration+0xe67/0x1740 [ 27.709947][ T22] generic_probe+0x9d/0xd5 [ 27.714347][ T22] usb_probe_device+0x99/0x100 [ 27.719699][ T22] ? usb_suspend+0x620/0x620 [ 27.724276][ T22] really_probe+0x281/0x6d0 [ 27.728986][ T22] driver_probe_device+0x104/0x210 [ 27.734077][ T22] __device_attach_driver+0x1c2/0x220 [ 27.739443][ T22] ? driver_allows_async_probing+0x160/0x160 [ 27.745415][ T22] bus_for_each_drv+0x162/0x1e0 [ 27.750258][ T22] ? bus_rescan_devices+0x20/0x20 [ 27.755556][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 27.762652][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 27.767931][ T22] __device_attach+0x217/0x360 [ 27.772783][ T22] ? device_bind_driver+0xd0/0xd0 [ 27.777942][ T22] bus_probe_device+0x1e4/0x290 [ 27.782925][ T22] device_add+0x1480/0x1c20 [ 27.788132][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 27.795235][ T22] usb_new_device.cold+0x6a4/0xe79 [ 27.800471][ T22] hub_event+0x1e59/0x3860 [ 27.805009][ T22] ? hub_port_debounce+0x260/0x260 [ 27.810120][ T22] ? find_held_lock+0x2d/0x110 [ 27.814874][ T22] ? mark_held_locks+0xe0/0xe0 [ 27.819631][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 27.825181][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 27.831382][ T22] process_one_work+0x92b/0x1530 [ 27.836397][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 27.841814][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 27.846947][ T22] worker_thread+0x96/0xe20 [ 27.856140][ T22] ? process_one_work+0x1530/0x1530 [ 27.861372][ T22] kthread+0x318/0x420 [ 27.865463][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 27.871535][ T22] ret_from_fork+0x24/0x30 [ 27.876729][ T22] Kernel Offset: disabled [ 27.881064][ T22] Rebooting in 86400 seconds..