------------[ cut here ]------------
usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 3891 at drivers/usb/gadget/udc/core.c:134 usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:133
Modules linked in:
CPU: 0 UID: 0 PID: 3891 Comm: syz.1.1499 Not tainted syzkaller #0 4acfbc369189e5cacd88ca5a92b3a107a9d116ed
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:133
Code: 4d 00 48 c7 c0 a0 9f 6d 86 49 c7 c0 c0 9f 6d 86 4c 0f 44 c0 48 c7 c7 60 9f 6d 86 48 c7 c6 2b 35 1f 87 44 89 f2 e8 e0 c8 48 fd <0f> 0b e9 4c ff ff ff e8 e4 c9 cd fd 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000007878 EFLAGS: 00010046
RAX: dfaa0c269cd8c800 RBX: ffff88810d6840b0 RCX: ffff888115ab93c0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900000078a0 R08: ffff8881f6c29593 R09: 1ffff1103ed852b2
R10: dffffc0000000000 R11: ffffed103ed852b3 R12: dffffc0000000000
R13: ffff88810d6840b8 R14: 0000000000000081 R15: ffff88811c4f74ba
FS:  0000000000000000(0000) GS:ffff8881f6c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f75937ebc40 CR3: 000000011acc8000 CR4: 00000000003526b0
Call Trace:
 <IRQ>
 hidg_set_alt+0x138/0xa70 drivers/usb/gadget/function/f_hid.c:1057
 set_config+0x812/0xd10 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+0x3ab/0x8e0 kernel/time/hrtimer.c:1822
 hrtimer_run_softirq+0x159/0x560 kernel/time/hrtimer.c:1839
 handle_softirqs+0x1aa/0x5b0 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:ptep_get include/linux/pgtable.h:319 [inline]
RIP: 0010:do_zap_pte_range mm/memory.c:1689 [inline]
RIP: 0010:zap_pte_range mm/memory.c:1752 [inline]
RIP: 0010:zap_pmd_range mm/memory.c:1845 [inline]
RIP: 0010:zap_pud_range mm/memory.c:1874 [inline]
RIP: 0010:zap_p4d_range mm/memory.c:1895 [inline]
RIP: 0010:unmap_page_range+0xae9/0x48f0 mm/memory.c:1916
Code: 01 00 00 48 8b 18 48 89 de 48 83 e6 08 31 ff e8 1d e8 b6 ff 48 83 e3 08 0f 85 00 30 00 00 4c 89 e0 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 e7 e8 9d 58 10 00 4d 8b 2c 24 4c 89 6c 24 18 4c 89 e3
RSP: 0018:ffffc9000eddf720 EFLAGS: 00000246
RAX: 1ffff11022834c30 RBX: 0000000000000000 RCX: ffff888115ab93c0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000eddf9d0 R08: ffff88811e44ded7 R09: 1ffff11023c89bda
R10: dffffc0000000000 R11: ffffed1023c89bdb R12: ffff8881141a6180
R13: dffffc0000000000 R14: 000000110c230000 R15: 000000110c400000
 unmap_single_vma mm/memory.c:1962 [inline]
 unmap_vmas+0x2dd/0x400 mm/memory.c:2006
 exit_mmap+0x28a/0xc20 mm/mmap.c:1975
 __mmput+0x92/0x330 kernel/fork.c:1370
 mmput+0x55/0x170 kernel/fork.c:1394
 exit_mm kernel/exit.c:581 [inline]
 do_exit+0x9a5/0x2850 kernel/exit.c:948
 do_group_exit+0x21f/0x2f0 kernel/exit.c:1104
 __do_sys_exit_group kernel/exit.c:1115 [inline]
 __se_sys_exit_group kernel/exit.c:1113 [inline]
 __x64_sys_exit_group+0x43/0x50 kernel/exit.c:1113
 x64_sys_call+0x2ed2/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7f90e559e559
Code: Unable to access opcode bytes at 0x7f90e559e52f.
RSP: 002b:00007fff0000e558 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f90e559e559
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff0000e5bc R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000146
R13: 00000000000927c0 R14: 000000000001382e R15: 00007fff0000e610
 </TASK>
---[ end trace 0000000000000000 ]---
configfs-gadget.g1 gadget.0: Enable IN endpoint FAILED!
----------------
Code disassembly (best guess):
   0:	01 00                	add    %eax,(%rax)
   2:	00 48 8b             	add    %cl,-0x75(%rax)
   5:	18 48 89             	sbb    %cl,-0x77(%rax)
   8:	de 48 83             	fimuls -0x7d(%rax)
   b:	e6 08                	out    %al,$0x8
   d:	31 ff                	xor    %edi,%edi
   f:	e8 1d e8 b6 ff       	call   0xffb6e831
  14:	48 83 e3 08          	and    $0x8,%rbx
  18:	0f 85 00 30 00 00    	jne    0x301e
  1e:	4c 89 e0             	mov    %r12,%rax
  21:	48 c1 e8 03          	shr    $0x3,%rax
  25:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
* 2a:	74 08                	je     0x34 <-- trapping instruction
  2c:	4c 89 e7             	mov    %r12,%rdi
  2f:	e8 9d 58 10 00       	call   0x1058d1
  34:	4d 8b 2c 24          	mov    (%r12),%r13
  38:	4c 89 6c 24 18       	mov    %r13,0x18(%rsp)
  3d:	4c 89 e3             	mov    %r12,%rbx