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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 5150 at drivers/usb/gadget/udc/core.c:125 usb_ep_enable+0x263/0x440 drivers/usb/gadget/udc/core.c:124
Modules linked in:
CPU: 1 PID: 5150 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:usb_ep_enable+0x263/0x440 drivers/usb/gadget/udc/core.c:124
Code: 49 8b 0e 48 c7 c0 e0 47 9a 8b 49 c7 c0 00 48 9a 8b 4c 0f 44 c0 48 c7 c7 a0 47 9a 8b 48 c7 c6 db 26 c9 8c 89 ea e8 bd 85 99 fa <0f> 0b e9 e1 fe ff ff e8 01 e1 cf fa 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900001f0790 EFLAGS: 00010046
RAX: b1d4232ee6edfc00 RBX: ffff8880267a80e0 RCX: ffff88807e1a3c00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000081 R08: ffff8880b8d28c53 R09: 1ffff110171a518a
R10: dffffc0000000000 R11: ffffed10171a518b R12: dffffc0000000000
R13: ffff8880267a810d R14: ffff8880267a80e8 R15: ffff888024da933a
FS: 00007f0e84e8a880(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe21c95da08 CR3: 000000001aeb7000 CR4: 00000000003506e0
Call Trace:
hidg_set_alt+0x12a/0xa10 drivers/usb/gadget/function/f_hid.c:827
set_config+0x735/0xff0 drivers/usb/gadget/composite.c:1018
composite_setup+0x1df4/0x33a0 drivers/usb/gadget/composite.c:1925
configfs_composite_setup+0xc7/0x100 drivers/usb/gadget/configfs.c:1875
dummy_timer+0x130c/0x35d0 drivers/usb/gadget/udc/dummy_hcd.c:1953
__run_hrtimer kernel/time/hrtimer.c:1754 [inline]
__hrtimer_run_queues+0x525/0xc10 kernel/time/hrtimer.c:1818
hrtimer_run_softirq+0x177/0x290 kernel/time/hrtimer.c:1835
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:finish_task_switch+0x267/0x8f0 kernel/sched/core.c:5267
Code: 39 09 85 c0 0f 84 30 01 00 00 48 85 db 0f 85 4f 01 00 00 0f 1f 44 00 00 4c 89 e7 e8 33 7d 43 09 e8 3e 3e 30 00 fb 4c 8b 65 b8 <49> 8d bc 24 00 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc900032f7820 EFLAGS: 00000282
RAX: b1d4232ee6edfc00 RBX: 0000000000000000 RCX: b1d4232ee6edfc00
RDX: dffffc0000000000 RSI: ffffffff8aead140 RDI: ffffffff8b3c5260
RBP: ffffc900032f7870 R08: ffffffff8f8dda6f R09: 1ffffffff1f1bb4d
R10: dffffc0000000000 R11: fffffbfff1f1bb4e R12: ffff88807e1a3c00
R13: 1ffff110171a79a1 R14: dffffc0000000000 R15: ffff8880b8d3cd08
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x1577/0x4720 kernel/sched/core.c:6722
schedule+0xbd/0x170 kernel/sched/core.c:6796
schedule_hrtimeout_range_clock+0x1cf/0x3d0 kernel/time/hrtimer.c:2350
ep_poll fs/eventpoll.c:1894 [inline]
do_epoll_wait+0x18c6/0x1bf0 fs/eventpoll.c:2323
__do_sys_epoll_wait fs/eventpoll.c:2335 [inline]
__se_sys_epoll_wait fs/eventpoll.c:2330 [inline]
__x64_sys_epoll_wait+0x1d8/0x230 fs/eventpoll.c:2330
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0e846a7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffe065ad250 EFLAGS: 00000202 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007f0e84e8a880 RCX: 00007f0e846a7407
RDX: 0000000000000008 RSI: 00007ffe065ad3b0 RDI: 000000000000000b
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000bb8 R11: 0000000000000202 R12: 0000000000000000
R13: 000055b573816100 R14: 0000000000000000 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 39 09 cmp %ecx,(%rcx)
2: 85 c0 test %eax,%eax
4: 0f 84 30 01 00 00 je 0x13a
a: 48 85 db test %rbx,%rbx
d: 0f 85 4f 01 00 00 jne 0x162
13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
18: 4c 89 e7 mov %r12,%rdi
1b: e8 33 7d 43 09 call 0x9437d53
20: e8 3e 3e 30 00 call 0x303e63
25: fb sti
26: 4c 8b 65 b8 mov -0x48(%rbp),%r12
* 2a: 49 8d bc 24 00 16 00 lea 0x1600(%r12),%rdi <-- trapping instruction
31: 00
32: 48 89 f8 mov %rdi,%rax
35: 48 c1 e8 03 shr $0x3,%rax
39: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax
3e: 84 c0 test %al,%al