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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 0 PID: 5305 at drivers/usb/gadget/udc/core.c:108 usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Modules linked in:
CPU: 0 PID: 5305 Comm: rm Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Code: 49 8b 0e 48 c7 c0 00 29 d5 8a 49 c7 c0 20 29 d5 8a 4c 0f 44 c0 48 c7 c7 c0 28 d5 8a 48 c7 c6 63 bb e1 8b 89 ea e8 c1 70 80 03 <0f> 0b e9 e1 fe ff ff e8 85 3b 43 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0000:ffffc90000007688 EFLAGS: 00010046
RAX: 080564d29620c500 RBX: ffff8880220e40e0 RCX: ffff888022221dc0
RDX: 0000000000000100 RSI: 0000000000000102 RDI: 0000000000000000
RBP: 0000000000000081 R08: ffff8880b902795b R09: 1ffff11017204f2b
R10: dffffc0000000000 R11: ffffed1017204f2c R12: dffffc0000000000
R13: ffff8880220e410d R14: ffff8880220e40e8 R15: ffff88802530e7ba
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa223029108 CR3: 0000000061c40000 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+0x734/0xfa0 drivers/usb/gadget/composite.c:972
 composite_setup+0x1999/0x2b60 drivers/usb/gadget/composite.c:1878
 configfs_composite_setup+0xc3/0x100 drivers/usb/gadget/configfs.c:1492
 dummy_timer+0x1338/0x34a0 drivers/usb/gadget/udc/dummy_hcd.c:1944
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:do_user_addr_fault+0x1b2/0xc90 arch/x86/mm/fault.c:1254
Code: 5c 24 10 48 8b 1b 48 89 de 48 83 e6 03 31 ff e8 84 92 43 00 48 83 e3 03 74 12 e8 99 8e 43 00 e8 64 ba 49 00 fb bb 54 02 00 00 <eb> 50 49 8d 9d 90 00 00 00 48 89 d8 48 c1 e8 03 80 3c 28 00 74 08
RSP: 0000:ffffc9000313fe80 EFLAGS: 00000282
RAX: 080564d29620c500 RBX: 0000000000000254 RCX: 080564d29620c500
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a48c0
RBP: dffffc0000000000 R08: ffffffff8d8b1eef R09: 1ffffffff1b163dd
R10: dffffc0000000000 R11: fffffbfff1b163de R12: 00007fa223029108
R13: ffffc9000313ff58 R14: 0000000000000007 R15: ffff88802b491c00
 handle_page_fault arch/x86/mm/fault.c:1443 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1496
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0033:0x7fa223034418
Code: fe ff ff 0f 1f 80 00 00 00 00 48 85 f6 0f 84 af 00 00 00 41 f6 85 56 03 00 00 20 0f 85 a1 00 00 00 49 8b 45 60 48 85 c0 74 04 <48> 01 70 08 49 8b 45 58 48 85 c0 74 04 48 01 70 08 49 8b 45 68 48
RSP: 002b:00007ffc52d38ad0 EFLAGS: 00010206
RAX: 00007fa223029100 RBX: 0000000000000030 RCX: 00007fa22302b100
RDX: 00007fa223029230 RSI: 00007fa222f69000 RDI: 000000006fffffff
RBP: 00007ffc52d38c20 R08: 0000000000000006 R09: 00000000effffef5
R10: 0000000070000029 R11: 00007ffc52d38d08 R12: 00007ffc52d389b0
R13: 00007fa22302b0c0 R14: 00007ffc52d38cc0 R15: 00007fa22302a918
 </TASK>
----------------
Code disassembly (best guess):
   0:	5c                   	pop    %rsp
   1:	24 10                	and    $0x10,%al
   3:	48 8b 1b             	mov    (%rbx),%rbx
   6:	48 89 de             	mov    %rbx,%rsi
   9:	48 83 e6 03          	and    $0x3,%rsi
   d:	31 ff                	xor    %edi,%edi
   f:	e8 84 92 43 00       	call   0x439298
  14:	48 83 e3 03          	and    $0x3,%rbx
  18:	74 12                	je     0x2c
  1a:	e8 99 8e 43 00       	call   0x438eb8
  1f:	e8 64 ba 49 00       	call   0x49ba88
  24:	fb                   	sti
  25:	bb 54 02 00 00       	mov    $0x254,%ebx
* 2a:	eb 50                	jmp    0x7c <-- trapping instruction
  2c:	49 8d 9d 90 00 00 00 	lea    0x90(%r13),%rbx
  33:	48 89 d8             	mov    %rbx,%rax
  36:	48 c1 e8 03          	shr    $0x3,%rax
  3a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1)
  3e:	74 08                	je     0x48