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usb_ep_enable: ep129 (ep1in-bulk) has maxpacket 0
WARNING: CPU: 1 PID: 6267 at drivers/usb/gadget/udc/core.c:108 usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Modules linked in:
CPU: 1 PID: 6267 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:usb_ep_enable+0x25f/0x440 drivers/usb/gadget/udc/core.c:107
Code: 49 8b 0e 48 c7 c0 80 27 d5 8a 49 c7 c0 a0 27 d5 8a 4c 0f 44 c0 48 c7 c7 40 27 d5 8a 48 c7 c6 1d 96 e1 8b 89 ea e8 c1 94 7f 03 <0f> 0b e9 e1 fe ff ff e8 95 67 43 fb 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90000dd06a8 EFLAGS: 00010046
RAX: d0e003faaaaf0200 RBX: ffff888147fd40e0 RCX: ffff88807d873b80
RDX: 0000000000000100 RSI: 0000000000000104 RDI: 0000000000000000
RBP: 0000000000000081 R08: ffff8880b912795b R09: 1ffff11017224f2b
R10: dffffc0000000000 R11: ffffed1017224f2c R12: dffffc0000000000
R13: ffff888147fd410d R14: ffff888147fd40e8 R15: ffff8880234a11ba
FS: 0000555576152500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4329ba26c8 CR3: 0000000067a7e000 CR4: 00000000003506e0
Call Trace:
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+0x1338/0x33c0 drivers/usb/gadget/udc/dummy_hcd.c:1930
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
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:arch_atomic_inc arch/x86/include/asm/atomic.h:-1 [inline]
RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
RIP: 0010:page_dup_rmap include/linux/rmap.h:188 [inline]
RIP: 0010:copy_present_pte mm/memory.c:966 [inline]
RIP: 0010:copy_pte_range mm/memory.c:1081 [inline]
RIP: 0010:copy_pmd_range mm/memory.c:1167 [inline]
RIP: 0010:copy_pud_range mm/memory.c:1204 [inline]
RIP: 0010:copy_p4d_range mm/memory.c:1228 [inline]
RIP: 0010:copy_page_range+0x16c2/0x32c0 mm/memory.c:1301
Code: ff be 04 00 00 00 e8 ed eb 10 00 f0 41 ff 07 4c 8b 7c 24 30 4c 89 ff 48 83 c7 30 be 04 00 00 00 e8 d3 eb 10 00 f0 41 ff 47 30 <49> bd 00 00 00 00 00 fc ff df 42 80 3c 2b 00 74 08 4c 89 f7 e8 15
RSP: 0018:ffffc900032c76c0 EFLAGS: 00000202
RAX: ffffffff81ad3501 RBX: 1ffffd40003440e1 RCX: ffffffff81ad353d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea0001a20730
RBP: ffffc900032c7970 R08: ffffea0001a20733 R09: 1ffffd40003440e6
R10: dffffc0000000000 R11: fffff940003440e7 R12: 0000000000000082
R13: ffffea0001a20700 R14: ffffea0001a20708 R15: ffffea0001a20700
dup_mmap kernel/fork.c:616 [inline]
dup_mm kernel/fork.c:1467 [inline]
copy_mm+0xc61/0x13d0 kernel/fork.c:1519
copy_process+0x17fb/0x3ec0 kernel/fork.c:2291
kernel_clone+0x23f/0x990 kernel/fork.c:2681
__do_sys_clone kernel/fork.c:2798 [inline]
__se_sys_clone kernel/fork.c:2782 [inline]
__x64_sys_clone+0x19a/0x210 kernel/fork.c:2782
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f4328e13b52
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007fff2151f000 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff2151f000 RCX: 00007f4328e13b52
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff2151f18c R08: 0000000000000000 R09: 0000000000000001
R10: 00005555761527d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 000000000003b5ba R15: 00007fff2151f1e0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: be 04 00 00 00 mov $0x4,%esi
5: e8 ed eb 10 00 call 0x10ebf7
a: f0 41 ff 07 lock incl (%r15)
e: 4c 8b 7c 24 30 mov 0x30(%rsp),%r15
13: 4c 89 ff mov %r15,%rdi
16: 48 83 c7 30 add $0x30,%rdi
1a: be 04 00 00 00 mov $0x4,%esi
1f: e8 d3 eb 10 00 call 0x10ebf7
24: f0 41 ff 47 30 lock incl 0x30(%r15)
* 29: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 <-- trapping instruction
30: fc ff df
33: 42 80 3c 2b 00 cmpb $0x0,(%rbx,%r13,1)
38: 74 08 je 0x42
3a: 4c 89 f7 mov %r14,%rdi
3d: e8 .byte 0xe8
3e: 15 .byte 0x15