cm109 2-1:0.8: cm109_urb_irq_callback: urb status -71
------------[ cut here ]------------
URB ffff888144394800 submitted while active
WARNING: drivers/usb/core/urb.c:380 at usb_submit_urb+0x7b/0x18d0 drivers/usb/core/urb.c:380, CPU#1: syz.0.6007/18350
Modules linked in:
CPU: 1 UID: 0 PID: 18350 Comm: syz.0.6007 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:usb_submit_urb+0x7e/0x18d0 drivers/usb/core/urb.c:380
Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 d7 8d 28 fb 49 83 3e 00 74 40 e8 cc 6b c2 fa 48 8d 3d c5 59 90 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 b1 6b c2 fa eb 05 e8 aa 6b
RSP: 0018:ffffc90000a08978 EFLAGS: 00010087
RAX: ffffffff86fe8c44 RBX: ffff888144394800 RCX: 0000000000040000
RDX: ffffc90002392000 RSI: ffff888144394800 RDI: ffffffff8f8ee610
RBP: 000000000000000f R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000141130 R12: 0000000000000820
R13: ffff888055ac4830 R14: ffff888144394808 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 000000005be82000 CR4: 00000000003526f0
Call Trace:
cm109_submit_ctl drivers/input/misc/cm109.c:380 [inline]
cm109_urb_irq_callback+0x709/0xcd0 drivers/input/misc/cm109.c:431
__usb_hcd_giveback_urb+0x376/0x540 drivers/usb/core/hcd.c:1661
dummy_timer+0x85f/0x45b0 drivers/usb/gadget/udc/dummy_hcd.c:1995
__run_hrtimer kernel/time/hrtimer.c:1777 [inline]
__hrtimer_run_queues+0x51c/0xc30 kernel/time/hrtimer.c:1841
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1858
handle_softirqs+0x22b/0x7c0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x60/0x150 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_rdp_cpu_online kernel/rcu/tree.c:3995 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0x87/0x120 kernel/rcu/tree.c:4036
Code: 3c 30 00 74 08 48 89 df e8 06 d9 7f 00 48 8b 03 48 8d 98 c0 c8 81 92 48 8d b8 e8 c8 81 92 48 89 f8 48 c1 e8 03 42 80 3c 30 00 <74> 05 e8 e2 d8 7f 00 4c 8b 7b 28 48 83 c3 20 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc90002ea73a8 EFLAGS: 00000246
RAX: 1ffff110170e771d RBX: ffff8880b873b8c0 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8bc083c0 RDI: ffff8880b873b8e8
RBP: 0000000000000001 R08: ffffffff8232a714 R09: ffffffff8df41aa0
R10: dffffc0000000000 R11: fffff940002e6671 R12: 000000000005ccce
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000001000
rcu_read_lock_held_common kernel/rcu/update.c:113 [inline]
rcu_read_lock_held+0x1e/0x50 kernel/rcu/update.c:349
lookup_page_ext mm/page_ext.c:254 [inline]
page_ext_lookup+0xe7/0x180 mm/page_ext.c:509
page_ext_iter_begin include/linux/page_ext.h:132 [inline]
page_table_check_clear+0x238/0x5f0 mm/page_table_check.c:78
ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline]
get_and_clear_full_ptes include/linux/pgtable.h:725 [inline]
zap_present_folio_ptes mm/memory.c:1626 [inline]
zap_present_ptes mm/memory.c:1708 [inline]
do_zap_pte_range mm/memory.c:1810 [inline]
zap_pte_range mm/memory.c:1854 [inline]
zap_pmd_range mm/memory.c:1946 [inline]
zap_pud_range mm/memory.c:1975 [inline]
zap_p4d_range mm/memory.c:1996 [inline]
unmap_page_range+0x3257/0x4170 mm/memory.c:2017
unmap_single_vma mm/memory.c:2059 [inline]
unmap_vmas+0x399/0x580 mm/memory.c:2101
exit_mmap+0x239/0xb10 mm/mmap.c:1277
__mmput+0x118/0x430 kernel/fork.c:1173
exit_mm+0x169/0x230 kernel/exit.c:581
do_exit+0x627/0x22f0 kernel/exit.c:959
do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
get_signal+0x1285/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x87/0x4e0 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4aebd8f749
Code: Unable to access opcode bytes at 0x7f4aebd8f71f.
RSP: 002b:00007f4aecd100e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f4aebfe5fa8 RCX: 00007f4aebd8f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4aebfe5fa8
RBP: 00007f4aebfe5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4aebfe6038 R14: 00007f4aec10f940 R15: 00007f4aec10fa28
----------------
Code disassembly (best guess):
0: 89 f0 mov %esi,%eax
2: 48 c1 e8 03 shr $0x3,%rax
6: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
b: 74 08 je 0x15
d: 4c 89 f7 mov %r14,%rdi
10: e8 d7 8d 28 fb call 0xfb288dec
15: 49 83 3e 00 cmpq $0x0,(%r14)
19: 74 40 je 0x5b
1b: e8 cc 6b c2 fa call 0xfac26bec
20: 48 8d 3d c5 59 90 08 lea 0x89059c5(%rip),%rdi # 0x89059ec
27: 48 89 de mov %rbx,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: b8 f0 ff ff ff mov $0xfffffff0,%eax
34: eb 11 jmp 0x47
36: e8 b1 6b c2 fa call 0xfac26bec
3b: eb 05 jmp 0x42
3d: e8 .byte 0xe8
3e: aa stos %al,%es:(%rdi)
3f: 6b .byte 0x6b