cdc_wdm 10-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 10-1:1.0: wdm_int_callback - 0 bytes
cm109 5-1:0.8: cm109_urb_irq_callback: urb status -71
------------[ cut here ]------------
URB ffff88806f455f00 submitted while active
WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x15fa/0x1910 drivers/usb/core/urb.c:379, CPU#1: kworker/u8:24/16963
Modules linked in:
CPU: 1 UID: 0 PID: 16963 Comm: kworker/u8:24 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: iou_exit io_ring_exit_work
RIP: 0010:usb_submit_urb+0x15fd/0x1910 drivers/usb/core/urb.c:379
Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 73 ff ff ff bb ed ff ff ff e9 be f2 ff ff e8 9d 64 b7 fa 48 8d 3d e6 e9 94 09 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 a0 f2 ff ff c7 44 24 30 00 00 00
RSP: 0018:ffffc90000a08ab0 EFLAGS: 00010083
RAX: 0000000000003de0 RBX: ffff88806f455f00 RCX: ffffc90002381000
RDX: 0000000000040000 RSI: ffff88806f455f00 RDI: ffffffff90e67d10
RBP: ffff88804f721858 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88804f721857 R14: ffff888021aa8400 R15: 000000000000000f
FS: 0000000000000000(0000) GS:ffff88812443c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffe70 CR3: 000000000e598000 CR4: 00000000003526f0
DR0: 0000000000000007 DR1: 0000000000000008 DR2: 0000000000000081
DR3: ffffffffefffff14 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
cm109_submit_ctl drivers/input/misc/cm109.c:380 [inline]
cm109_urb_irq_callback+0x479/0xa90 drivers/input/misc/cm109.c:431
__usb_hcd_giveback_urb+0x38d/0x610 drivers/usb/core/hcd.c:1657
usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741
dummy_timer+0xd85/0x3670 drivers/usb/gadget/udc/dummy_hcd.c:1995
__run_hrtimer kernel/time/hrtimer.c:1785 [inline]
__hrtimer_run_queues+0x50e/0xa70 kernel/time/hrtimer.c:1849
hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1866
handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xef/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+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5872
Code: 05 bb 36 29 12 83 f8 07 0f 87 f0 00 00 00 48 0f a3 05 86 b6 f4 0e 0f 82 c2 02 00 00 8b 35 6e ea f4 0e 85 f6 0f 85 dd 00 00 00 <48> 8b 44 24 30 65 48 2b 05 5d 36 29 12 0f 85 02 03 00 00 48 83 c4
RSP: 0018:ffffc90005e072d8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffffffff8de53642 RDI: ffffffff8c1b17a0
RBP: ffffffff8e7e7920 R08: 000000006226dde0 R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
rcu_read_lock include/linux/rcupdate.h:850 [inline]
class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0xd1/0x1ea0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4538 [inline]
slab_alloc_node mm/slub.c:4866 [inline]
kmem_cache_alloc_noprof+0x241/0x6e0 mm/slub.c:4873
kmem_alloc_batch+0x49/0x170 lib/debugobjects.c:371
fill_pool lib/debugobjects.c:420 [inline]
debug_objects_fill_pool lib/debugobjects.c:742 [inline]
debug_objects_fill_pool+0x352/0x700 lib/debugobjects.c:714
debug_object_activate+0x103/0x490 lib/debugobjects.c:831
debug_rcu_head_queue kernel/rcu/rcu.h:236 [inline]
__call_rcu_common.constprop.0+0x35/0x9b0 kernel/rcu/tree.c:3116
slab_free_hook mm/slub.c:2649 [inline]
slab_free mm/slub.c:6165 [inline]
kmem_cache_free+0x44b/0x6a0 mm/slub.c:6295
__io_req_caches_free+0x1a6/0x220 io_uring/io_uring.c:2134
io_req_caches_free+0x24/0x60 io_uring/io_uring.c:2146
io_ring_exit_work+0x3eb/0xd15 io_uring/io_uring.c:2340
process_one_work+0xa23/0x19a0 kernel/workqueue.c:3276
process_scheduled_works kernel/workqueue.c:3359 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3440
kthread+0x370/0x450 kernel/kthread.c:436
ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 00 48 8b add %cl,-0x75(%rax)
3: 04 24 add $0x24,%al
5: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx
c: e9 73 ff ff ff jmp 0xffffff84
11: bb ed ff ff ff mov $0xffffffed,%ebx
16: e9 be f2 ff ff jmp 0xfffff2d9
1b: e8 9d 64 b7 fa call 0xfab764bd
20: 48 8d 3d e6 e9 94 09 lea 0x994e9e6(%rip),%rdi # 0x994ea0d
27: 48 89 de mov %rbx,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: bb f0 ff ff ff mov $0xfffffff0,%ebx
34: e9 a0 f2 ff ff jmp 0xfffff2d9
39: c7 .byte 0xc7
3a: 44 24 30 rex.R and $0x30,%al
3d: 00 00 add %al,(%rax)