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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 4265 at drivers/usb/gadget/udc/core.c:108 usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Modules linked in:
CPU: 1 PID: 4265 Comm: kworker/1:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events pwq_unbound_release_workfn
RIP: 0010:usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Code: 49 8b 0e 48 c7 c0 e0 2d d5 8a 49 c7 c0 00 2e d5 8a 4c 0f 44 c0 48 c7 c7 a0 2d d5 8a 48 c7 c6 e7 0e e2 8b 89 ea e8 41 ee 80 03 <0f> 0b e9 e1 fe ff ff e8 c5 e7 42 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000dd0688 EFLAGS: 00010046
RAX: 3ef7e68e7e531400 RBX: ffff888147ff00e0 RCX: ffff88802b75bb80
RDX: 0000000000000100 RSI: 0000000000000103 RDI: 0000000000000000
RBP: 0000000000000081 R08: ffff8880b8f2795b R09: 1ffff110171e4f2b
R10: dffffc0000000000 R11: ffffed10171e4f2c R12: dffffc0000000000
R13: ffff888147ff010d R14: ffff888147ff00e8 R15: ffff88805f26b3ba
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056418b53f950 CR3: 000000004ca1a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hidg_set_alt+0x126/0xa00 drivers/usb/gadget/function/f_hid.c:822
set_config+0x734/0xfa0 drivers/usb/gadget/composite.c:972
composite_setup+0x1999/0x2b60 drivers/usb/gadget/composite.c:1878
configfs_composite_setup+0xc3/0x100 drivers/usb/gadget/configfs.c:1492
dummy_timer+0x1338/0x34a0 drivers/usb/gadget/udc/dummy_hcd.c:1944
call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
expire_timers kernel/time/timer.c:1699 [inline]
__run_timers+0x56c/0x810 kernel/time/timer.c:1970
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
handle_softirqs+0x336/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6799
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 35 f4 87 f7 e8 b0 eb b4 f7 fb bf 01 00 00 00 d5 b5 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc9000313f9c0 EFLAGS: 00000282
RAX: 3ef7e68e7e531400 RBX: 0000000000000000 RCX: 3ef7e68e7e531400
RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: 0000000000000001
RBP: ffffc9000313fa60 R08: ffffffff910150ef R09: 1ffffffff2202a1d
R10: dffffc0000000000 R11: fffffbfff2202a1e R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000627f38
irqentry_exit+0x63/0x70 kernel/entry/common.c:435
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:681
RIP: 0010:lockdep_unregister_key+0x4d3/0x520 kernel/locking/lockdep.c:6476
Code: 48 3b 84 24 80 00 00 00 75 39 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 79 7d 64 08 41 f7 c4 00 02 00 00 74 90 fb 84 db <75> 8f eb a0 0f 0b e9 44 ff ff ff 0f 0b e9 b0 fe ff ff 0f 0b e9 fd
RSP: 0018:ffffc9000313fb20 EFLAGS: 00000202
RAX: dffffc0000000000 RBX: ffff888074f83101 RCX: 3ef7e68e7e531400
RDX: 0000000000000001 RSI: ffffffff8a2b3960 RDI: ffffffff8a7a4b40
RBP: ffffc9000313fbf0 R08: ffffffff90fc7117 R09: 1ffffffff21f8e22
R10: dffffc0000000000 R11: fffffbfff21f8e23 R12: 0000000000000a02
R13: ffff888074f83129 R14: ffffffff90fc5018 R15: 1ffff92000627f68
wq_unregister_lockdep kernel/workqueue.c:3518 [inline]
pwq_unbound_release_workfn+0x262/0x2b0 kernel/workqueue.c:3756
process_one_work+0x867/0xff0 kernel/workqueue.c:2310
worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 43 c6 44 37 04 f8 movb $0xf8,0x4(%r15,%r14,1)
8: 74 0b je 0x15
a: 0f 0b ud2
c: 48 f7 03 08 00 00 00 testq $0x8,(%rbx)
13: 74 7f je 0x94
15: bf 01 00 00 00 mov $0x1,%edi
1a: e8 35 f4 87 f7 call 0xf787f454
1f: e8 b0 eb b4 f7 call 0xf7b4ebd4
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 d5 b5 ff ff call 0xffffb604 <-- trapping instruction
2f: 43 c6 44 37 08 00 movb $0x0,0x8(%r15,%r14,1)
35: 48 c7 44 24 40 00 00 movq $0x0,0x40(%rsp)
3c: 00 00
3e: 9c pushf
3f: 8f .byte 0x8f