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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 26 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x27c/0x4d0 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker
RIP: 0010:usb_ep_enable+0x27c/0x4d0 drivers/usb/gadget/udc/core.c:124
Code: 49 8b 0e 48 c7 c0 80 cf 3e 8b 49 c7 c0 a0 cf 3e 8b 4c 0f 44 c0 48 c7 c7 40 cf 3e 8b 48 c7 c6 19 aa 63 8c 89 ea e8 d4 f4 ce fa <0f> 0b e9 c4 fe ff ff e8 78 6a 03 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900001e0788 EFLAGS: 00010046
RAX: 1fa4f98d9956e300 RBX: ffff8880279880e0 RCX: ffff88801776bc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000081 R08: ffff8880b8f279db R09: 1ffff110171e4f3b
R10: dffffc0000000000 R11: ffffed10171e4f3c R12: dffffc0000000000
R13: ffff88802798810d R14: ffff8880279880e8 R15: ffff88807772a63a
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdd22acc64 CR3: 000000002e2fc000 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+0x6e8/0xf70 drivers/usb/gadget/composite.c:986
composite_setup+0x194c/0x2b00 drivers/usb/gadget/composite.c:1893
configfs_composite_setup+0xc3/0x100 drivers/usb/gadget/configfs.c:1484
dummy_timer+0x12ea/0x3420 drivers/usb/gadget/udc/dummy_hcd.c:1936
__run_hrtimer kernel/time/hrtimer.c:1751 [inline]
__hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815
hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832
handle_softirqs+0x291/0x910 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:encrypt_packet drivers/net/wireguard/send.c:207 [inline]
RIP: 0010:wg_packet_encrypt_worker+0x7cf/0x1550 drivers/net/wireguard/send.c:297
Code: 04 38 84 c0 0f 85 78 06 00 00 41 c7 45 00 04 00 00 00 48 8b 44 24 40 48 8d 98 d0 04 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 6e 06 00 00 44 8b 23 49 8d 5d 04 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc90000a1f700 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffff8880757a24d0 RCX: ffff88801776bc00
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff8880579c52f0
RBP: ffffc90000a1fc30 R08: ffffc90000a1fb3f R09: ffff88801dbde880
R10: dffffc0000000000 R11: fffff52000143f68 R12: 0000000000000000
R13: ffff88801dbde870 R14: ffff8880579c5280 R15: dffffc0000000000
process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
kthread+0x29d/0x330 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 04 38 add $0x38,%al
2: 84 c0 test %al,%al
4: 0f 85 78 06 00 00 jne 0x682
a: 41 c7 45 00 04 00 00 movl $0x4,0x0(%r13)
11: 00
12: 48 8b 44 24 40 mov 0x40(%rsp),%rax
17: 48 8d 98 d0 04 00 00 lea 0x4d0(%rax),%rbx
1e: 48 89 d8 mov %rbx,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 0f 85 6e 06 00 00 jne 0x6a0
32: 44 8b 23 mov (%rbx),%r12d
35: 49 8d 5d 04 lea 0x4(%r13),%rbx
39: 48 89 d8 mov %rbx,%rax
3c: 48 c1 e8 03 shr $0x3,%rax