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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480 drivers/usb/gadget/udc/core.c:124, CPU#0: pool_workqueue_/3
Modules linked in:
CPU: 0 UID: 0 PID: 3 Comm: pool_workqueue_ Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:usb_ep_enable+0x1bc/0x480 drivers/usb/gadget/udc/core.c:124
Code: 3a 1e 5a fa 49 83 3f 00 48 c7 c0 20 5a 16 8d 49 c7 c0 40 5a 16 8d 4c 0f 44 c0 4c 89 f7 48 c7 c6 c3 08 c9 8e 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 e0 7d e2 f9 65 8b
RSP: 0018:ffffc90000007910 EFLAGS: 00010082
RAX: ffffffff8d165a20 RBX: ffff888029fc80e0 RCX: ffffffff8d167900
RDX: 0000000000000081 RSI: ffffffff8ec908c3 RDI: ffffffff91ef0fa0
RBP: dffffc0000000000 R08: ffffffff8d165a40 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: ffffffff8d167900
R13: 0000000000000081 R14: ffffffff91ef0fa0 R15: ffff888029fc80f8
FS: 0000000000000000(0000) GS:ffff888123166000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555564aa9a78 CR3: 000000006f936000 CR4: 00000000003526f0
Call Trace:
hidg_set_alt+0x12a/0xa60 drivers/usb/gadget/function/f_hid.c:1042
set_config+0x749/0x1160 drivers/usb/gadget/composite.c:1018
composite_setup+0x1de7/0x3480 drivers/usb/gadget/composite.c:1901
configfs_composite_setup+0xc7/0x100 drivers/usb/gadget/configfs.c:1877
dummy_timer+0x2f30/0x4ce0 drivers/usb/gadget/udc/dummy_hcd.c:1983
__run_hrtimer kernel/time/hrtimer.c:2079 [inline]
__hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2136
hrtimer_run_softirq+0x1e3/0x2e0 kernel/time/hrtimer.c:2153
handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
__do_softirq kernel/softirq.c:703 [inline]
invoke_softirq kernel/softirq.c:542 [inline]
__irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lockdep_unregister_key+0x2cf/0x350 kernel/locking/lockdep.c:6712
Code: e9 c6 2e 09 00 48 c7 c7 50 de 11 98 89 c6 e8 58 d4 7a 0a e9 66 fe ff ff e8 ce f3 77 0a 41 f7 c7 00 02 00 00 74 b4 fb 40 84 ed <75> b3 eb c4 90 0f 0b 90 e9 27 ff ff ff 90 0f 0b 90 e9 2f ff ff ff
RSP: 0018:ffffc90000087c70 EFLAGS: 00000202
RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000046
RDX: ffffffff95cd59b8 RSI: ffffffff8ea0bdcd RDI: ffffffff8cb01180
RBP: ffff88801f2a9f01 R08: ffffffff81b210f8 R09: 0000000000000000
R10: 0000000000000009 R11: ffffffff81b3d510 R12: 0000000000000000
R13: ffff888078502941 R14: 0000000000001000 R15: 0000000000000a87
wq_unregister_lockdep kernel/workqueue.c:5217 [inline]
pwq_release_workfn+0x91d/0xb10 kernel/workqueue.c:5559
kthread_worker_fn+0x4eb/0xb10 kernel/kthread.c:1025
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 3a 1e cmp (%rsi),%bl
2: 5a pop %rdx
3: fa cli
4: 49 83 3f 00 cmpq $0x0,(%r15)
8: 48 c7 c0 20 5a 16 8d mov $0xffffffff8d165a20,%rax
f: 49 c7 c0 40 5a 16 8d mov $0xffffffff8d165a40,%r8
16: 4c 0f 44 c0 cmove %rax,%r8
1a: 4c 89 f7 mov %r14,%rdi
1d: 48 c7 c6 c3 08 c9 8e mov $0xffffffff8ec908c3,%rsi
24: 44 89 ea mov %r13d,%edx
27: 4c 89 e1 mov %r12,%rcx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: bd ea ff ff ff mov $0xffffffea,%ebp
34: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
39: e8 e0 7d e2 f9 call 0xf9e27e1e
3e: 65 gs
3f: 8b .byte 0x8b