usb 4-1: config 0 descriptor??
usb 4-1: dvb_usb_v2: found a 'TerraTec NOXON DAB Stick' in warm state
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BUG: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 include/linux/irq-entry-common.h:464
 irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 include/linux/irq-entry-common.h:464
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x82/0xa00 kernel/entry/common.c:164
 sysvec_call_function_single+0x4f/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 page_has_metadata mm/kmsan/shadow.c:38 [inline]
 kmsan_get_metadata+0x103/0x160 mm/kmsan/shadow.c:144
 kmsan_get_shadow_origin_ptr+0x4a/0xb0 mm/kmsan/shadow.c:102
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:38 [inline]
 __msan_metadata_ptr_for_load_8+0x24/0x40 mm/kmsan/instrumentation.c:94
 rtl28xxu_ctrl_msg+0x40/0x7e0 drivers/media/usb/dvb-usb-v2/rtl28xxu.c:19
 rtl2832u_read_config drivers/media/usb/dvb-usb-v2/rtl28xxu.c:503 [inline]
 rtl28xxu_read_config+0x2578/0x3950 drivers/media/usb/dvb-usb-v2/rtl28xxu.c:638
 dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:858 [inline]
 dvb_usbv2_probe+0xff4/0x61f0 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:982
 usb_probe_interface+0xd51/0x1440 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d5/0xe40 drivers/base/dd.c:709
 __driver_probe_device+0x2fb/0x410 drivers/base/dd.c:871
 driver_probe_device+0x70/0x8f0 drivers/base/dd.c:901
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:1029
 bus_for_each_drv+0x3e3/0x680 drivers/base/bus.c:500
 __device_attach+0x3c5/0x5f0 drivers/base/dd.c:1101
 device_initial_probe+0x126/0x170 drivers/base/dd.c:1156
 bus_probe_device+0x287/0x530 drivers/base/bus.c:613
 device_add+0x12e3/0x1c90 drivers/base/core.c:3706
 usb_set_configuration+0x3484/0x3b60 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0xfc/0x290 drivers/usb/core/generic.c:250
 usb_probe_device+0x38d/0x690 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x4d5/0xe40 drivers/base/dd.c:709
 __driver_probe_device+0x2fb/0x410 drivers/base/dd.c:871
 driver_probe_device+0x70/0x8f0 drivers/base/dd.c:901
 __device_attach_driver+0x4ee/0x950 drivers/base/dd.c:1029
 bus_for_each_drv+0x3e3/0x680 drivers/base/bus.c:500
 __device_attach+0x3c5/0x5f0 drivers/base/dd.c:1101
 device_initial_probe+0x126/0x170 drivers/base/dd.c:1156
 bus_probe_device+0x287/0x530 drivers/base/bus.c:613
 device_add+0x12e3/0x1c90 drivers/base/core.c:3706
 usb_new_device+0x106a/0x2120 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x5404/0x77c0 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xb65/0x1e40 kernel/workqueue.c:3397
 worker_thread+0xee4/0x1590 kernel/workqueue.c:3478
 kthread+0x53a/0x5f0 kernel/kthread.c:436
 ret_from_fork+0x20f/0x8d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Local variable tmp.i492.i created at:
 rtl28xxu_wr_reg_mask drivers/media/usb/dvb-usb-v2/rtl28xxu.c:122 [inline]
 rtl2832u_read_config drivers/media/usb/dvb-usb-v2/rtl28xxu.c:414 [inline]
 rtl28xxu_read_config+0x1161/0x3950 drivers/media/usb/dvb-usb-v2/rtl28xxu.c:638
 dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:858 [inline]
 dvb_usbv2_probe+0xff4/0x61f0 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:982

CPU: 0 UID: 0 PID: 5680 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: usb_hub_wq hub_event
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