------------[ cut here ]------------
usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 346 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 1 UID: 0 PID: 346 Comm: syz.1.10 Not tainted syzkaller #0 84c4865013cb051b9e1c8192e6ebfa0ba91d02b9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:124
Code: 4d 00 48 c7 c0 60 62 6d 86 49 c7 c0 80 62 6d 86 4c 0f 44 c0 48 c7 c7 20 62 6d 86 48 c7 c6 ec 75 1d 87 44 89 f2 e8 60 2b 4b fd <0f> 0b e9 4c ff ff ff e8 d4 59 ce fd 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000230878 EFLAGS: 00010046
RAX: 4f07ea9b916fc900 RBX: ffff888107ab80b0 RCX: ffff888130672600
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900002308a0 R08: ffff8881f6f294d3 R09: 1ffff1103ede529a
R10: dffffc0000000000 R11: ffffed103ede529b R12: dffffc0000000000
R13: ffff888107ab80b8 R14: 0000000000000081 R15: ffff888104656e3a
FS:  00007f4de7ca56c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010f746000 CR4: 00000000003526b0
Call Trace:
 <IRQ>
 hidg_set_alt+0x138/0xa70 drivers/usb/gadget/function/f_hid.c:1057
 set_config+0x80f/0xd10 drivers/usb/gadget/composite.c:1021
 composite_setup+0x18b0/0x3320 drivers/usb/gadget/composite.c:1929
 configfs_composite_setup+0xc6/0x110 drivers/usb/gadget/configfs.c:1883
 dummy_timer+0x2eee/0x4900 drivers/usb/gadget/udc/dummy_hcd.c:1935
 __run_hrtimer kernel/time/hrtimer.c:1758 [inline]
 __hrtimer_run_queues+0x3ae/0x8e0 kernel/time/hrtimer.c:1822
 hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
 handle_softirqs+0x1aa/0x620 kernel/softirq.c:621
 __do_softirq kernel/softirq.c:659 [inline]
 invoke_softirq kernel/softirq.c:476 [inline]
 __irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
 irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:x2apic_send_IPI+0x7a/0xd0 arch/x86/kernel/apic/x2apic_phys.c:51
Code: c1 e8 03 42 0f b6 04 20 84 c0 75 3c 41 8b 16 0f ae f0 0f ae e8 83 fb 02 b8 00 04 00 00 0f 45 c3 b9 30 08 00 00 0f 30 66 90 5b <41> 5c 41 5e 41 5f 5d c3 cc cc cc cc cc 48 c7 c7 40 58 4e 87 4c 89
RSP: 0018:ffffc9000b85ec48 EFLAGS: 00000206
RAX: 00000000000000fb RBX: 0000000000000000 RCX: 0000000000000830
RDX: 0000000000000000 RSI: 00000000000000fb RDI: 0000000000000000
RBP: ffffc9000b85ec60 R08: ffffc9000b85ec07 R09: 1ffff9200170bd80
R10: 0000000000000000 R11: ffffffff814278d0 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881f6e21168 R15: ffffffff87200b80
 __apic_send_IPI arch/x86/include/asm/apic.h:430 [inline]
 native_send_call_func_single_ipi+0x12/0x20 arch/x86/kernel/apic/ipi.c:78
 arch_send_call_function_single_ipi arch/x86/include/asm/smp.h:94 [inline]
 send_call_function_single_ipi kernel/smp.c:124 [inline]
 __smp_call_single_queue+0xd8/0x380 kernel/smp.c:419
 generic_exec_single+0x1fd/0x500 kernel/smp.c:452
 __smp_call_function_single+0x54e/0x6f0 kernel/smp.c:696
 smp_call_function_single+0x41/0x60 kernel/smp.c:722
 loaded_vmcs_clear arch/x86/kvm/vmx/vmx.c:817 [inline]
 vmx_vcpu_load_vmcs+0xdd/0x6f0 arch/x86/kvm/vmx/vmx.c:1457
 vmx_vcpu_load+0x98/0x370 arch/x86/kvm/vmx/vmx.c:1525
 kvm_arch_vcpu_load+0x268/0x8d0 arch/x86/kvm/x86.c:5002
 kvm_sched_in+0x74/0xe0 virt/kvm/kvm_main.c:6423
 __fire_sched_in_preempt_notifiers kernel/sched/core.c:5585 [inline]
 fire_sched_in_preempt_notifiers kernel/sched/core.c:5591 [inline]
 finish_task_switch+0x623/0x770 kernel/sched/core.c:5945
 context_switch kernel/sched/core.c:6066 [inline]
 __schedule+0x149e/0x20b0 kernel/sched/core.c:7883
 preempt_schedule_irq+0xab/0x110 kernel/sched/core.c:8205
 raw_irqentry_exit_cond_resched+0x32/0x40 kernel/entry/common.c:311
 irqentry_exit+0x4a/0x60 kernel/entry/common.c:354
 sysvec_reschedule_ipi+0x72/0x80 arch/x86/kernel/smp.c:248
 asm_sysvec_reschedule_ipi+0x1f/0x30 arch/x86/include/asm/idtentry.h:707
RIP: 0010:check_kcov_mode kernel/kcov.c:194 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x3a/0x70 kernel/kcov.c:217
Code: 0c 75 7d 7e 65 8b 15 0d 75 7d 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 ec 0b 00 00 00 74 2c 8b 91 c8 0b 00 00 <83> fa 02 75 21 48 8b 91 d0 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 cc
RSP: 0018:ffffc9000b85f468 EFLAGS: 00000246
RAX: ffffffff811924b0 RBX: ffff88810f7ba9b8 RCX: ffff888130672600
RDX: 0000000000000002 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000b85f468 R08: ffff88810f7ba347 R09: 1ffff11021ef7468
R10: dffffc0000000000 R11: ffffed1021ef7469 R12: ffff88810f7ba9c8
R13: dffffc0000000000 R14: 1ffff11021ef7539 R15: ffff88810f7ba180
 kvm_deliver_exception_payload+0xd0/0x1e0 arch/x86/kvm/x86.c:762
 vmx_inject_exception+0x56/0x4c0 arch/x86/kvm/vmx/vmx.c:1836
 kvm_inject_exception+0x112/0x2d0 arch/x86/kvm/x86.c:10300
 kvm_check_and_inject_events arch/x86/kvm/x86.c:10448 [inline]
 vcpu_enter_guest arch/x86/kvm/x86.c:10960 [inline]
 vcpu_run+0x3b08/0x7830 arch/x86/kvm/x86.c:11358
 kvm_arch_vcpu_ioctl_run+0x114c/0x1bc0 arch/x86/kvm/x86.c:11685
 kvm_vcpu_ioctl+0xa43/0x1000 virt/kvm/kvm_main.c:4526
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x126/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f4de6d9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4de7ca5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4de7025fa0 RCX: 00007f4de6d9e159
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
RBP: 00007f4de6e3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4de7026038 R14: 00007f4de7025fa0 R15: 00007ffd72d301e8
 </TASK>
---[ end trace 0000000000000000 ]---
configfs-gadget.g1 gadget.0: Enable IN endpoint FAILED!
----------------
Code disassembly (best guess):
   0:	c1 e8 03             	shr    $0x3,%eax
   3:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax
   8:	84 c0                	test   %al,%al
   a:	75 3c                	jne    0x48
   c:	41 8b 16             	mov    (%r14),%edx
   f:	0f ae f0             	mfence
  12:	0f ae e8             	lfence
  15:	83 fb 02             	cmp    $0x2,%ebx
  18:	b8 00 04 00 00       	mov    $0x400,%eax
  1d:	0f 45 c3             	cmovne %ebx,%eax
  20:	b9 30 08 00 00       	mov    $0x830,%ecx
  25:	0f 30                	wrmsr
  27:	66 90                	xchg   %ax,%ax
  29:	5b                   	pop    %rbx
* 2a:	41 5c                	pop    %r12 <-- trapping instruction
  2c:	41 5e                	pop    %r14
  2e:	41 5f                	pop    %r15
  30:	5d                   	pop    %rbp
  31:	c3                   	ret
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	cc                   	int3
  36:	cc                   	int3
  37:	48 c7 c7 40 58 4e 87 	mov    $0xffffffff874e5840,%rdi
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89