usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
dvbdev: DVB: registering new adapter (Hauppauge 126xxx ATSC+)
usb 1-1: media controller created
dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
usb 1-1: selecting invalid altsetting 1
set interface failed
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 94 at kernel/locking/mutex.c:938 __mutex_lock_common kernel/locking/mutex.c:938 [inline]
WARNING: CPU: 1 PID: 94 at kernel/locking/mutex.c:938 __mutex_lock+0xd2c/0x1360 kernel/locking/mutex.c:1103
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 94 Comm: kworker/1:2 Not tainted 5.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xef/0x16e lib/dump_stack.c:118
 panic+0x2aa/0x6e1 kernel/panic.c:221
 __warn.cold+0x2f/0x30 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:938 [inline]
RIP: 0010:__mutex_lock+0xd2c/0x1360 kernel/locking/mutex.c:1103
Code: d2 0f 85 f1 05 00 00 44 8b 05 40 c3 57 02 45 85 c0 0f 85 0f f4 ff ff 48 c7 c6 40 cc e6 85 48 c7 c7 40 ca e6 85 e8 4c a2 85 fb <0f> 0b e9 f5 f3 ff ff 65 48 8b 1c 25 00 0f 02 00 be 08 00 00 00 48
RSP: 0018:ffff8881d5cfeec0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab9fdca
RBP: ffff8881d5cff030 R08: ffff8881d6a91880 R09: fffffbfff0e1fbe1
R10: fffffbfff0e1fbe0 R11: ffffffff870fdf03 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8881ce7791c8 R15: 0000000000000001
 mxl111sf_ctrl_msg+0xc2/0x240 drivers/media/usb/dvb-usb-v2/mxl111sf.c:66
 mxl111sf_write_reg+0x9a/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_lgdt3305_frontend_attach.constprop.0+0x24d/0x7c0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:447
 mxl111sf_frontend_attach_atsc_mh+0x22/0xa0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:984
 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+0x2826/0x2efe drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:981
 usb_probe_interface+0x310/0x800 drivers/usb/core/driver.c:374
 really_probe+0x290/0xac0 drivers/base/dd.c:551
 driver_probe_device+0x223/0x350 drivers/base/dd.c:724
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 __device_attach+0x217/0x390 drivers/base/dd.c:897
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1459/0x1bf0 drivers/base/core.c:2487
 usb_set_configuration+0xe47/0x17d0 drivers/usb/core/message.c:2023
 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241
 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272
 really_probe+0x290/0xac0 drivers/base/dd.c:551
 driver_probe_device+0x223/0x350 drivers/base/dd.c:724
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431
 __device_attach+0x217/0x390 drivers/base/dd.c:897
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0x1459/0x1bf0 drivers/base/core.c:2487
 usb_new_device.cold+0x540/0xcd0 drivers/usb/core/hub.c:2544
 hub_port_connect drivers/usb/core/hub.c:5191 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5331 [inline]
 port_event drivers/usb/core/hub.c:5477 [inline]
 hub_event+0x21cb/0x4300 drivers/usb/core/hub.c:5559
 process_one_work+0x94b/0x1620 kernel/workqueue.c:2264
 worker_thread+0x96/0xe20 kernel/workqueue.c:2410
 kthread+0x318/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..