usb 1-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 2 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 ================================================================== BUG: KASAN: slab-out-of-bounds in strlen+0x5c/0x84 lib/string.c:402 Read of size 1 at addr ffff0000cfbc2b00 by task kworker/1:5/4762 CPU: 1 UID: 0 PID: 4762 Comm: kworker/1:5 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 Workqueue: usb_hub_wq hub_event Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 print_address_description+0xb0/0x238 mm/kasan/report.c:378 print_report+0x68/0x84 mm/kasan/report.c:482 kasan_report+0x8c/0xc4 mm/kasan/report.c:595 __asan_report_load1_noabort+0x20/0x2c mm/kasan/report_generic.c:378 strlen+0x5c/0x84 lib/string.c:402 __fortify_strlen include/linux/fortify-string.h:218 [inline] drm_property_add_enum+0x38/0x428 drivers/gpu/drm/drm_property.c:396 drm_mode_create_tv_properties_legacy+0x1cc/0x3b0 drivers/gpu/drm/drm_connector.c:2242 gud_connector_add_tv_mode drivers/gpu/drm/gud/gud_connector.c:402 [inline] gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline] gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline] gud_get_connectors+0xb28/0x1380 drivers/gpu/drm/gud/gud_connector.c:717 gud_probe+0xe3c/0x1078 drivers/gpu/drm/gud/gud_drv.c:635 usb_probe_interface+0x374/0x834 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_set_configuration+0x1184/0x158c drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:250 usb_probe_device+0x114/0x2b0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_new_device+0x9c4/0x11f8 drivers/usb/core/hub.c:2708 hub_port_connect drivers/usb/core/hub.c:5580 [inline] hub_port_connect_change drivers/usb/core/hub.c:5720 [inline] port_event drivers/usb/core/hub.c:5884 [inline] hub_event+0x1ef0/0x39fc drivers/usb/core/hub.c:5966 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 Allocated by task 4762: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:78 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:570 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x9c/0xb4 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x2f4/0x5fc mm/slub.c:5563 _kmalloc_noprof include/linux/slab.h:991 [inline] gud_connector_add_tv_mode drivers/gpu/drm/gud/gud_connector.c:385 [inline] gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline] gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline] gud_get_connectors+0x80c/0x1380 drivers/gpu/drm/gud/gud_connector.c:717 gud_probe+0xe3c/0x1078 drivers/gpu/drm/gud/gud_drv.c:635 usb_probe_interface+0x374/0x834 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_set_configuration+0x1184/0x158c drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:250 usb_probe_device+0x114/0x2b0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_new_device+0x9c4/0x11f8 drivers/usb/core/hub.c:2708 hub_port_connect drivers/usb/core/hub.c:5580 [inline] hub_port_connect_change drivers/usb/core/hub.c:5720 [inline] port_event drivers/usb/core/hub.c:5884 [inline] hub_event+0x1ef0/0x39fc drivers/usb/core/hub.c:5966 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 The buggy address belongs to the object at ffff0000cfbc2a00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 0 bytes to the right of allocated 256-byte region [ffff0000cfbc2a00, ffff0000cfbc2b00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff0000cfbc2c00 pfn:0x10fbc2 head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x5ffc00000000240(workingset|head|node=0|zone=2|lastcpupid=0x7ff) page_type: f5(slab) raw: 05ffc00000000240 ffff0000c0001b40 ffff0000c0000708 ffff0000c0000708 raw: ffff0000cfbc2c00 0000000000100006 00000000f5000000 0000000000000000 head: 05ffc00000000240 ffff0000c0001b40 ffff0000c0000708 ffff0000c0000708 head: ffff0000cfbc2c00 0000000000100006 00000000f5000000 0000000000000000 head: 05ffc00000000001 fffffdffc33ef081 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000cfbc2a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000cfbc2a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000cfbc2b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000cfbc2b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000cfbc2c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ------------[ cut here ]------------ WARNING: drivers/gpu/drm/drm_property.c:396 at drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396, CPU#1: kworker/1:5/4762 Modules linked in: CPU: 1 UID: 0 PID: 4762 Comm: kworker/1:5 Tainted: G B syzkaller #0 PREEMPT Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 Workqueue: usb_hub_wq hub_event pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 lr : drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 sp : ffff800095bf6ae0 x29: ffff800095bf6ae0 x28: dfff800000000000 x27: 000000000000000f x26: 1fffe0001a5e4154 x25: ffff0000d2f20aa0 x24: dfff800000000000 x23: ffff0000dd0fa400 x22: ffff0000cfbc2ac0 x21: 0000000000000042 x20: ffff0000dd0fa400 x19: 000000000000000c x18: 1fffe00035ba3828 x17: 3d3d3d3d3d3d3d3d x16: 3d3d3d3d3d3d3d3d x15: 3d3d3d3d3d3d3d3d x14: 3d3d3d3d3d3d3d3d x13: 0000000000000001 x12: 0000000000000002 x11: 0000000000000000 x10: dfff800000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff80008048e314 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800082320234 x2 : 0000000000000042 x1 : ffff0000dc178000 x0 : 0000000000000000 Call trace: drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 (P) drm_mode_create_tv_properties_legacy+0x1cc/0x3b0 drivers/gpu/drm/drm_connector.c:2242 gud_connector_add_tv_mode drivers/gpu/drm/gud/gud_connector.c:402 [inline] gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline] gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline] gud_get_connectors+0xb28/0x1380 drivers/gpu/drm/gud/gud_connector.c:717 gud_probe+0xe3c/0x1078 drivers/gpu/drm/gud/gud_drv.c:635 usb_probe_interface+0x374/0x834 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_set_configuration+0x1184/0x158c drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:250 usb_probe_device+0x114/0x2b0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_new_device+0x9c4/0x11f8 drivers/usb/core/hub.c:2708 hub_port_connect drivers/usb/core/hub.c:5580 [inline] hub_port_connect_change drivers/usb/core/hub.c:5720 [inline] port_event drivers/usb/core/hub.c:5884 [inline] hub_event+0x1ef0/0x39fc drivers/usb/core/hub.c:5966 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 irq event stamp: 50639 hardirqs last enabled at (50639): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (50639): [] __arm64_exit_to_kernel_mode+0x64/0x78 arch/arm64/kernel/entry-common.c:60 hardirqs last disabled at (50638): [] handle_softirqs+0xaf0/0xd98 kernel/softirq.c:660 softirqs last enabled at (50252): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (50252): [] handle_softirqs+0xc28/0xd98 kernel/softirq.c:673 softirqs last disabled at (50243): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: drivers/gpu/drm/drm_property.c:396 at drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396, CPU#1: kworker/1:5/4762 Modules linked in: CPU: 1 UID: 0 PID: 4762 Comm: kworker/1:5 Tainted: G B W syzkaller #0 PREEMPT Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 Workqueue: usb_hub_wq hub_event pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 lr : drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 sp : ffff800095bf6ae0 x29: ffff800095bf6ae0 x28: dfff800000000000 x27: 000000000000000f x26: 1fffe0001a5e4154 x25: ffff0000d2f20aa0 x24: dfff800000000000 x23: ffff0000dd0fa400 x22: ffff0000cfbc2ad0 x21: 0000000000000032 x20: ffff0000dd0fa400 x19: 000000000000000d x18: 1fffe00035ba3828 x17: 3d3d3d3d3d3d3d3d x16: 3d3d3d3d3d3d3d3d x15: 3d3d3d3d3d3d3d3d x14: 3d3d3d3d3d3d3d3d x13: 0000000000000001 x12: 0000000000000002 x11: 0000000000000000 x10: dfff800000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff80008048e314 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800082320234 x2 : 0000000000000032 x1 : ffff0000dc178000 x0 : 0000000000000000 Call trace: drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 (P) drm_mode_create_tv_properties_legacy+0x1cc/0x3b0 drivers/gpu/drm/drm_connector.c:2242 gud_connector_add_tv_mode drivers/gpu/drm/gud/gud_connector.c:402 [inline] gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline] gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline] gud_get_connectors+0xb28/0x1380 drivers/gpu/drm/gud/gud_connector.c:717 gud_probe+0xe3c/0x1078 drivers/gpu/drm/gud/gud_drv.c:635 usb_probe_interface+0x374/0x834 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_set_configuration+0x1184/0x158c drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:250 usb_probe_device+0x114/0x2b0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_new_device+0x9c4/0x11f8 drivers/usb/core/hub.c:2708 hub_port_connect drivers/usb/core/hub.c:5580 [inline] hub_port_connect_change drivers/usb/core/hub.c:5720 [inline] port_event drivers/usb/core/hub.c:5884 [inline] hub_event+0x1ef0/0x39fc drivers/usb/core/hub.c:5966 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 irq event stamp: 50639 hardirqs last enabled at (50639): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (50639): [] __arm64_exit_to_kernel_mode+0x64/0x78 arch/arm64/kernel/entry-common.c:60 hardirqs last disabled at (50638): [] handle_softirqs+0xaf0/0xd98 kernel/softirq.c:660 softirqs last enabled at (50252): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (50252): [] handle_softirqs+0xc28/0xd98 kernel/softirq.c:673 softirqs last disabled at (50243): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: drivers/gpu/drm/drm_property.c:396 at drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396, CPU#1: kworker/1:5/4762 Modules linked in: CPU: 1 UID: 0 PID: 4762 Comm: kworker/1:5 Tainted: G B W syzkaller #0 PREEMPT Tainted: [B]=BAD_PAGE, [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 Workqueue: usb_hub_wq hub_event pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 lr : drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 sp : ffff800095bf6ae0 x29: ffff800095bf6ae0 x28: dfff800000000000 x27: 000000000000000f x26: 1fffe0001a5e4154 x25: ffff0000d2f20aa0 x24: dfff800000000000 x23: ffff0000dd0fa400 x22: ffff0000cfbc2ae0 x21: 0000000000000022 x20: ffff0000dd0fa400 x19: 000000000000000e x18: 1fffe00035ba3828 x17: 3d3d3d3d3d3d3d3d x16: 3d3d3d3d3d3d3d3d x15: 3d3d3d3d3d3d3d3d x14: 3d3d3d3d3d3d3d3d x13: 0000000000000001 x12: 0000000000000002 x11: 0000000000000000 x10: dfff800000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff80008048e314 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800082320234 x2 : 0000000000000022 x1 : ffff0000dc178000 x0 : 0000000000000000 Call trace: drm_property_add_enum+0x394/0x428 drivers/gpu/drm/drm_property.c:396 (P) drm_mode_create_tv_properties_legacy+0x1cc/0x3b0 drivers/gpu/drm/drm_connector.c:2242 gud_connector_add_tv_mode drivers/gpu/drm/gud/gud_connector.c:402 [inline] gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline] gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline] gud_get_connectors+0xb28/0x1380 drivers/gpu/drm/gud/gud_connector.c:717 gud_probe+0xe3c/0x1078 drivers/gpu/drm/gud/gud_drv.c:635 usb_probe_interface+0x374/0x834 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_set_configuration+0x1184/0x158c drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:250 usb_probe_device+0x114/0x2b0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x29c/0x800 drivers/base/dd.c:706 __driver_probe_device+0x1e0/0x350 drivers/base/dd.c:868 driver_probe_device+0x6c/0x19c drivers/base/dd.c:898 __device_attach_driver+0x198/0x2f8 drivers/base/dd.c:1026 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500 __device_attach+0x248/0x390 drivers/base/dd.c:1098 device_initial_probe+0x90/0xc8 drivers/base/dd.c:1153 bus_probe_device+0x58/0x120 drivers/base/bus.c:620 device_add+0x6cc/0x9e0 drivers/base/core.c:3776 usb_new_device+0x9c4/0x11f8 drivers/usb/core/hub.c:2708 hub_port_connect drivers/usb/core/hub.c:5580 [inline] hub_port_connect_change drivers/usb/core/hub.c:5720 [inline] port_event drivers/usb/core/hub.c:5884 [inline] hub_event+0x1ef0/0x39fc drivers/usb/core/hub.c:5966 process_one_work kernel/workqueue.c:3387 [inline] process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3470 worker_thread+0x798/0xbd0 kernel/workqueue.c:3551 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:838 irq event stamp: 50639 hardirqs last enabled at (50639): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (50639): [] __arm64_exit_to_kernel_mode+0x64/0x78 arch/arm64/kernel/entry-common.c:60 hardirqs last disabled at (50638): [] handle_softirqs+0xaf0/0xd98 kernel/softirq.c:660 softirqs last enabled at (50252): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (50252): [] handle_softirqs+0xc28/0xd98 kernel/softirq.c:673 softirqs last disabled at (50243): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- [drm] Initialized gud 1.0.0 for 1-1:1.0 on minor 2 gud 1-1:1.0: [drm] fb1: guddrmfb frame buffer device usb 1-1: USB disconnect, device number 2