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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: drivers/usb/gadget/udc/core.c:125 at usb_ep_enable+0x148/0x480, CPU#1: swapper/1/0
Modules linked in:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:usb_ep_enable+0x1bc/0x480
Code: 9a 8b 80 fa 49 83 3f 00 48 c7 c0 40 f0 b0 8c 49 c7 c0 60 f0 b0 8c 4c 0f 44 c0 4c 89 f7 48 c7 c6 e3 d1 4b 8e 44 89 ea 4c 89 e1 <67> 48 0f b9 3a bd ea ff ff ff 0f 1f 44 00 00 e8 30 ef 12 fa 65 8b
RSP: 0018:ffffc90000a08910 EFLAGS: 00010082
RAX: ffffffff8cb0f040 RBX: ffff88816e5a40e0 RCX: ffffffff8cb10e60
RDX: 0000000000000081 RSI: ffffffff8e4bd1e3 RDI: ffffffff906575b0
RBP: dffffc0000000000 R08: ffffffff8cb0f060 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: ffffffff8cb10e60
R13: 0000000000000081 R14: ffffffff906575b0 R15: ffff88816e5a40f8
FS:  0000000000000000(0000) GS:ffff8882a8f55000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ca8d1 CR3: 00000001110a2000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 hidg_set_alt+0x12a/0xa60
 set_config+0x749/0x1160
 composite_setup+0x1de7/0x3480
 configfs_composite_setup+0xc7/0x100
 dummy_timer+0x2f43/0x4cf0
 __hrtimer_run_queues+0x3bc/0xa10
 hrtimer_run_softirq+0x17a/0x240
 handle_softirqs+0x225/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0xf/0x20
Code: bb 7e 02 c3 cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d b3 be 18 00 fb f4 <e9> 4c 07 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffc90000197e40 EFLAGS: 00000202
RAX: 0000000000103473 RBX: ffffffff819b4450 RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8e228aa9 RDI: ffffffff8c4bbe80
RBP: ffffc90000197f10 R08: ffff88823c6338db R09: 1ffff110478c671b
R10: dffffc0000000000 R11: ffffed10478c671c R12: 0000000000000000
R13: 1ffff1102c09d000 R14: 1ffff92000032fd0 R15: dffffc0000000000
 default_idle+0x9/0x20
 default_idle_call+0x72/0xb0
 do_idle+0x2e0/0x540
 cpu_startup_entry+0x43/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x157
 </TASK>
