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usb_ep_enable: ep134 (ep6in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 4417 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x27c/0x4d0 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 0 PID: 4417 Comm: kworker/0:7 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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 c0 fa 5e 8b 49 c7 c0 e0 fa 5e 8b 4c 0f 44 c0 48 c7 c7 80 fa 5e 8b 48 c7 c6 83 82 86 8c 89 ea e8 f4 5f cd fa <0f> 0b e9 c4 fe ff ff e8 a8 ec 01 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000007768 EFLAGS: 00010046
RAX: ab6a6f0a20a13100 RBX: ffff888142f1c248 RCX: ffff88801de5da00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000086 R08: ffff8880b8c279db R09: 1ffff11017184f3b
R10: dffffc0000000000 R11: ffffed1017184f3c R12: dffffc0000000000
R13: ffff888142f1c275 R14: ffff888142f1c250 R15: ffff88802b548aba
FS:  0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2c0bb4d000 CR3: 0000000020655000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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+0x1305/0x34e0 drivers/usb/gadget/udc/dummy_hcd.c:1950
 __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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__skb_flow_dissect+0x1a7/0x6d50 net/core/flow_dissector.c:-1
Code: df 34 46 f9 e9 1d 02 00 00 49 8d bd d8 00 00 00 48 89 f8 48 c1 e8 03 42 80 3c 38 00 74 05 e8 b0 90 97 f9 49 8b 85 d8 00 00 00 <48> 89 44 24 58 49 8d bd 82 00 00 00 49 8d 9d 85 00 00 00 48 89 f8
RSP: 0018:ffffc90004696f80 EFLAGS: 00000246
RAX: ffff888054d74c80 RBX: 0000000000000000 RCX: ffff88801de5da00
RDX: 0000000000000000 RSI: f2f2f2f2f2f8f8f8 RDI: ffff888030f81358
RBP: ffffc90004697548 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff520008d2ece R12: 0000000000000000
R13: ffff888030f81280 R14: 0000000000000000 R15: dffffc0000000000
 skb_flow_dissect_flow_keys include/linux/skbuff.h:1531 [inline]
 ___skb_get_hash+0x55/0x6e0 net/core/flow_dissector.c:1713
 __skb_get_hash+0xd2/0x270 net/core/flow_dissector.c:1778
 skb_get_hash include/linux/skbuff.h:1573 [inline]
 encrypt_packet drivers/net/wireguard/send.c:173 [inline]
 wg_packet_encrypt_worker+0x398/0x1550 drivers/net/wireguard/send.c:297
 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
 </TASK>
----------------
Code disassembly (best guess):
   0:	df 34 46             	fbstp  (%rsi,%rax,2)
   3:	f9                   	stc
   4:	e9 1d 02 00 00       	jmp    0x226
   9:	49 8d bd d8 00 00 00 	lea    0xd8(%r13),%rdi
  10:	48 89 f8             	mov    %rdi,%rax
  13:	48 c1 e8 03          	shr    $0x3,%rax
  17:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
  1c:	74 05                	je     0x23
  1e:	e8 b0 90 97 f9       	call   0xf99790d3
  23:	49 8b 85 d8 00 00 00 	mov    0xd8(%r13),%rax
* 2a:	48 89 44 24 58       	mov    %rax,0x58(%rsp) <-- trapping instruction
  2f:	49 8d bd 82 00 00 00 	lea    0x82(%r13),%rdi
  36:	49 8d 9d 85 00 00 00 	lea    0x85(%r13),%rbx
  3d:	48 89 f8             	mov    %rdi,%rax