hub 8-1:5.0: bad descriptor, ignoring hub
hub: probe of 8-1:5.0 failed with error -5
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
CPU: 2 PID: 9764 Comm: kworker/2:9 Not tainted 5.12.0-rc8-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 lib/dump_stack.c:120
 alloc_list_entry kernel/locking/lockdep.c:1353 [inline]
 add_lock_to_list.constprop.0.cold+0x11/0x18 kernel/locking/lockdep.c:1374
 check_prev_add kernel/locking/lockdep.c:3007 [inline]
 check_prevs_add kernel/locking/lockdep.c:3060 [inline]
 validate_chain kernel/locking/lockdep.c:3675 [inline]
 __lock_acquire+0x2f37/0x54c0 kernel/locking/lockdep.c:4901
 lock_acquire kernel/locking/lockdep.c:5511 [inline]
 lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5476
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
 rq_lock kernel/sched/sched.h:1321 [inline]
 __schedule+0x21c/0x21b0 kernel/sched/core.c:4990
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5530
 irqentry_exit_cond_resched kernel/entry/common.c:392 [inline]
 irqentry_exit_cond_resched kernel/entry/common.c:384 [inline]
 irqentry_exit+0x7a/0xa0 kernel/entry/common.c:428
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197
Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 69 fa 8d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc90001146d90 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000000
RDX: ffff88801c0c1c40 RSI: ffffffff814a741d RDI: 0000000000000003
RBP: 0000000000000008 R08: 0000000000000000 R09: ffffffff8fa9aa3f
R10: ffffffff814a7413 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffff888010469000 R15: 00000000ffffff00
 queue_work_on+0xb3/0x110 kernel/workqueue.c:1529
 queue_work include/linux/workqueue.h:507 [inline]
 call_usermodehelper_exec+0x1f0/0x4c0 kernel/umh.c:433
 kobject_uevent_env+0xf9f/0x1680 lib/kobject_uevent.c:617
 kset_register+0x185/0x1e0 lib/kobject.c:881
 __class_register+0x210/0x4a0 drivers/base/class.c:188
 __class_create+0xce/0x150 drivers/base/class.c:242
 init_usb_class drivers/usb/core/file.c:91 [inline]
 usb_register_dev+0x4ea/0x7e0 drivers/usb/core/file.c:179
 usblp_probe+0x1183/0x1540 drivers/usb/class/usblp.c:1208
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 really_probe+0x291/0xe60 drivers/base/dd.c:559
 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:745
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:851
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4a0 drivers/base/dd.c:919
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xbdb/0x1db0 drivers/base/core.c:3242
 usb_set_configuration+0x113f/0x1910 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 really_probe+0x291/0xe60 drivers/base/dd.c:559
 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:745
 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:851
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4a0 drivers/base/dd.c:919
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xbdb/0x1db0 drivers/base/core.c:3242
 usb_new_device.cold+0x721/0x1058 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x2357/0x4320 drivers/usb/core/hub.c:5591
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
usblp 8-1:5.0: usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 3 vid 0x0525 pid 0xA4A8
usb 7-1: new high-speed USB device number 2 using dummy_hcd
usb 7-1: Using ep0 maxpacket: 8
usb 7-1: config index 0 descriptor too short (expected 65316, got 36)
usb 7-1: config 5 has too many interfaces: 255, using maximum allowed: 32
usb 7-1: config 5 has 1 interface, different from the descriptor's value: 255
usb 7-1: config 5 interface 0 altsetting 0 endpoint 0x1 has invalid maxpacket 1792, setting to 1024
usb 7-1: config 5 interface 0 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 1024
usb 7-1: config 5 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 65
usb 7-1: config 5 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 18
usb 7-1: New USB device found, idVendor=0525, idProduct=a4a8, bcdDevice= 0.07
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=1
usb 7-1: SerialNumber: syz
hub 7-1:5.0: bad descriptor, ignoring hub
hub: probe of 7-1:5.0 failed with error -5
usblp 7-1:5.0: usblp1: USB Bidirectional printer dev 2 if 0 alt 0 proto 3 vid 0x0525 pid 0xA4A8