dvbdev: DVB: registering new adapter (Hauppauge 126xxx) usb 6-1: media controller created dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. usb 6-1: selecting invalid altsetting 2 set interface failed ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 28821 at kernel/locking/mutex.c:575 __mutex_lock_common kernel/locking/mutex.c:575 [inline] WARNING: CPU: 1 PID: 28821 at kernel/locking/mutex.c:575 __mutex_lock+0x9ee/0x12f0 kernel/locking/mutex.c:729 Modules linked in: CPU: 1 PID: 28821 Comm: kworker/1:3 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:575 [inline] RIP: 0010:__mutex_lock+0x9ee/0x12f0 kernel/locking/mutex.c:729 Code: 08 84 d2 0f 85 19 08 00 00 8b 05 15 4e 36 04 85 c0 0f 85 27 f7 ff ff 48 c7 c6 60 ef 8b 89 48 c7 c7 e0 ec 8b 89 e8 1d 56 bb ff <0f> 0b e9 0d f7 ff ff 48 8b 44 24 40 48 8d b8 88 08 00 00 48 89 f8 RSP: 0018:ffffc9000c4ced88 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815e9d98 RDI: fffff52001899da3 RBP: ffff888072c659d8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815e3b3e R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff888072c65958 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a791cde9d8 CR3: 000000000b68e000 CR4: 0000000000350ee0 Call Trace: mxl111sf_ctrl_msg+0xc2/0x240 drivers/media/usb/dvb-usb-v2/mxl111sf.c:66 mxl111sf_write_reg+0x97/0x150 drivers/media/usb/dvb-usb-v2/mxl111sf.c:123 mxl1x1sf_soft_reset+0x6b/0x190 drivers/media/usb/dvb-usb-v2/mxl111sf-phy.c:47 mxl111sf_attach_demod+0x290/0x870 drivers/media/usb/dvb-usb-v2/mxl111sf.c:765 mxl111sf_frontend_attach_mercury_mh+0x2b/0x9b0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:1024 dvb_usbv2_adapter_frontend_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:642 [inline] dvb_usbv2_adapter_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:805 [inline] dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:866 [inline] dvb_usbv2_probe.cold+0x258d/0x2fa9 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:981 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x245/0xcc0 drivers/base/dd.c:596 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x228/0x4a0 drivers/base/dd.c:969 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xc17/0x1ee0 drivers/base/core.c:3396 usb_set_configuration+0x113f/0x1910 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x245/0xcc0 drivers/base/dd.c:596 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x228/0x4a0 drivers/base/dd.c:969 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xc17/0x1ee0 drivers/base/core.c:3396 usb_new_device.cold+0x63f/0x108e drivers/usb/core/hub.c:2563 hub_port_connect drivers/usb/core/hub.c:5348 [inline] hub_port_connect_change drivers/usb/core/hub.c:5488 [inline] port_event drivers/usb/core/hub.c:5634 [inline] hub_event+0x2357/0x4330 drivers/usb/core/hub.c:5716 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295