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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 376 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x210/0x3c0 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 0 UID: 0 PID: 376 Comm: syz.0.23 Not tainted syzkaller #0 59fd58dbf897e2c8ba33f91efbb53ce34092dff9
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 a0 5d 6d 86 49 c7 c0 c0 5d 6d 86 4c 0f 44 c0 48 c7 c7 60 5d 6d 86 48 c7 c6 f9 5f 1d 87 44 89 f2 e8 00 31 4b fd <0f> 0b e9 4c ff ff ff e8 24 61 ce fd 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000007878 EFLAGS: 00010046
RAX: 07cfc7b2afff1800 RBX: ffff8881047340b0 RCX: ffff888115432600
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc900000078a0 R08: ffff8881f6e294d3 R09: 1ffff1103edc529a
R10: dffffc0000000000 R11: ffffed103edc529b R12: dffffc0000000000
R13: ffff8881047340b8 R14: 0000000000000081 R15: ffff888113840f32
FS: 00005555784f0500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff937c0010 CR3: 0000000131f38000 CR4: 00000000003526b0
Call Trace:
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+0x1885/0x32f0 drivers/usb/gadget/composite.c:1929
configfs_composite_setup+0xc6/0x110 drivers/usb/gadget/configfs.c:1883
dummy_timer+0x2eeb/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
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:insn_get_prefixes+0x86/0x1d20 arch/x86/lib/insn.c:-1
Code: 74 0a e8 9d d3 e2 fb e9 05 13 00 00 49 8d 5d 68 48 89 d8 48 c1 e8 03 48 89 45 98 42 80 3c 38 00 74 08 48 89 df e8 fa b6 3b fc <48> 89 5d c8 49 8b 5d 68 48 8d 4b 01 4d 8d 75 60 4c 89 f0 48 c1 e8
RSP: 0018:ffffc9000b84f7a0 EFLAGS: 00000246
RAX: 1ffff92001709f61 RBX: ffffc9000b84fb08 RCX: 0000000000000000
RDX: ffff888115432600 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b84f860 R08: ffffc9000b84fb0f R09: 0000000000000000
R10: ffffc9000b84faa0 R11: fffff52001709f62 R12: 0000000000000000
R13: ffffc9000b84faa0 R14: 0000000000000000 R15: dffffc0000000000
insn_get_opcode+0x75/0xe50 arch/x86/lib/insn.c:282
insn_get_modrm+0x68/0x750 arch/x86/lib/insn.c:369
insn_get_sib arch/x86/lib/insn.c:443 [inline]
insn_get_displacement+0x156/0x990 arch/x86/lib/insn.c:484
insn_get_immediate+0x68/0x1200 arch/x86/lib/insn.c:650
insn_get_length arch/x86/lib/insn.c:723 [inline]
insn_decode+0x335/0x520 arch/x86/lib/insn.c:762
text_poke_loc_init+0x128/0x7d0 arch/x86/kernel/alternative.c:2598
text_poke_queue+0x109/0x1a0 arch/x86/kernel/alternative.c:2702
arch_jump_label_transform_queue+0x90/0x120 arch/x86/kernel/jump_label.c:138
__jump_label_update+0x187/0x3b0 kernel/jump_label.c:513
jump_label_update+0x395/0x440 kernel/jump_label.c:920
__static_key_slow_dec_cpuslocked+0xb7/0x110 kernel/jump_label.c:315
__static_key_slow_dec kernel/jump_label.c:321 [inline]
static_key_slow_dec+0x49/0xa0 kernel/jump_label.c:336
preempt_notifier_dec+0x14/0x20 kernel/sched/core.c:5551
kvm_destroy_vm virt/kvm/kvm_main.c:1368 [inline]
kvm_put_kvm+0x1125/0x12d0 virt/kvm/kvm_main.c:1392
kvm_vm_release+0x47/0x70 virt/kvm/kvm_main.c:1415
__fput+0x20b/0xa30 fs/file_table.c:447
____fput+0x20/0x30 fs/file_table.c:475
task_work_run+0x1e5/0x260 kernel/task_work.c:246
resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f27c619e159
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:00007fff937bfd78 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fff937bfe60 RCX: 00007f27c619e159
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00000000000087e1 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2e220000 R11: 0000000000000246 R12: 00007fff937bfea0
R13: 00007f27c6425fac R14: 000000000000881b R15: 00007f27c6425fa0
---[ end trace 0000000000000000 ]---
configfs-gadget.g1 gadget.0: Enable IN endpoint FAILED!
----------------
Code disassembly (best guess):
0: 74 0a je 0xc
2: e8 9d d3 e2 fb call 0xfbe2d3a4
7: e9 05 13 00 00 jmp 0x1311
c: 49 8d 5d 68 lea 0x68(%r13),%rbx
10: 48 89 d8 mov %rbx,%rax
13: 48 c1 e8 03 shr $0x3,%rax
17: 48 89 45 98 mov %rax,-0x68(%rbp)
1b: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
20: 74 08 je 0x2a
22: 48 89 df mov %rbx,%rdi
25: e8 fa b6 3b fc call 0xfc3bb724
* 2a: 48 89 5d c8 mov %rbx,-0x38(%rbp) <-- trapping instruction
2e: 49 8b 5d 68 mov 0x68(%r13),%rbx
32: 48 8d 4b 01 lea 0x1(%rbx),%rcx
36: 4d 8d 75 60 lea 0x60(%r13),%r14
3a: 4c 89 f0 mov %r14,%rax
3d: 48 rex.W
3e: c1 .byte 0xc1
3f: e8 .byte 0xe8