microsoft 0003:045E:07DA.0015: unknown main item tag 0x0
microsoft 0003:045E:07DA.0015: unknown main item tag 0x0
microsoft 0003:045E:07DA.0015: unknown main item tag 0x0
microsoft 0003:045E:07DA.0015: unknown main item tag 0x0
==================================================================
BUG: KASAN: slab-out-of-bounds in mon_copy_to_buff drivers/usb/mon/mon_bin.c:252 [inline]
BUG: KASAN: slab-out-of-bounds in mon_bin_get_data drivers/usb/mon/mon_bin.c:420 [inline]
BUG: KASAN: slab-out-of-bounds in mon_bin_event+0x12c1/0x23e0 drivers/usb/mon/mon_bin.c:606
Read of size 3072 at addr ffff88811cc88001 by task kworker/0:0/9

CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.12.30-syzkaller-g437e1d666d1d #0 a7e852bab5516ec71c4837645977b8b84c4f3040
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
 print_address_description+0x71/0x220 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:488
 kasan_report+0x163/0x1a0 mm/kasan/report.c:601
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x299/0x2a0 mm/kasan/generic.c:189
 __asan_memcpy+0x31/0x80 mm/kasan/shadow.c:105
 mon_copy_to_buff drivers/usb/mon/mon_bin.c:252 [inline]
 mon_bin_get_data drivers/usb/mon/mon_bin.c:420 [inline]
 mon_bin_event+0x12c1/0x23e0 drivers/usb/mon/mon_bin.c:606
 mon_bin_submit+0x2b/0x40 drivers/usb/mon/mon_bin.c:626
 mon_bus_submit drivers/usb/mon/mon_main.c:89 [inline]
 mon_submit+0x1b9/0x230 drivers/usb/mon/mon_main.c:100
 usbmon_urb_submit include/linux/usb/hcd.h:740 [inline]
 usb_hcd_submit_urb+0x12d/0x1a20 drivers/usb/core/hcd.c:1518
 usb_submit_urb+0x111b/0x1800 drivers/usb/core/urb.c:581
 usb_start_wait_urb+0x11b/0x2f0 drivers/usb/core/message.c:59
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x25a/0x490 drivers/usb/core/message.c:154
 usbhid_set_raw_report drivers/hid/usbhid/hid-core.c:928 [inline]
 usbhid_raw_request+0x457/0x590 drivers/hid/usbhid/hid-core.c:1296
 __hid_request+0x1e5/0x410 drivers/hid/hid-core.c:1979
 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline]
 hidinput_connect+0x241b/0x3340 drivers/hid/hid-input.c:2327
 hid_connect+0x49a/0x1a20 drivers/hid/hid-core.c:2236
 hid_hw_start+0xcb/0x160 drivers/hid/hid-core.c:2351
 ms_probe+0x194/0x460 drivers/hid/hid-microsoft.c:391
 __hid_device_probe drivers/hid/hid-core.c:2702 [inline]
 hid_device_probe+0x2c4/0x5d0 drivers/hid/hid-core.c:2739
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d3/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x25d/0x2f0 drivers/base/bus.c:459
 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xc00 drivers/base/core.c:3692
 hid_add_device+0x39b/0x560 drivers/hid/hid-core.c:2885
 usbhid_probe+0xde3/0x12b0 drivers/hid/usbhid/hid-core.c:1432
 usb_probe_interface+0x696/0xc00 drivers/usb/core/driver.c:403
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d3/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x25d/0x2f0 drivers/base/bus.c:459
 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xc00 drivers/base/core.c:3692
 usb_set_configuration+0x1ad4/0x20b0 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:298
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d3/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x25d/0x2f0 drivers/base/bus.c:459
 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xc00 drivers/base/core.c:3692
 usb_new_device+0x9ed/0x1590 drivers/usb/core/hub.c:2662
 hub_port_connect drivers/usb/core/hub.c:5533 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5673 [inline]
 port_event drivers/usb/core/hub.c:5837 [inline]
 hub_event+0x2c81/0x4270 drivers/usb/core/hub.c:5919
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319
 worker_thread+0xc58/0x1250 kernel/workqueue.c:3400
 kthread+0x2c7/0x370 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 9:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4351 [inline]
 __kmalloc_noprof+0x1b1/0x450 mm/slub.c:4363
 kmalloc_noprof include/linux/slab.h:885 [inline]
 kzalloc_noprof include/linux/slab.h:1017 [inline]
 hid_alloc_report_buf drivers/hid/hid-core.c:1880 [inline]
 __hid_request+0xa9/0x410 drivers/hid/hid-core.c:1970
 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline]
 hidinput_connect+0x241b/0x3340 drivers/hid/hid-input.c:2327
 hid_connect+0x49a/0x1a20 drivers/hid/hid-core.c:2236
 hid_hw_start+0xcb/0x160 drivers/hid/hid-core.c:2351
 ms_probe+0x194/0x460 drivers/hid/hid-microsoft.c:391
 __hid_device_probe drivers/hid/hid-core.c:2702 [inline]
 hid_device_probe+0x2c4/0x5d0 drivers/hid/hid-core.c:2739
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d3/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x25d/0x2f0 drivers/base/bus.c:459
 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xc00 drivers/base/core.c:3692
 hid_add_device+0x39b/0x560 drivers/hid/hid-core.c:2885
 usbhid_probe+0xde3/0x12b0 drivers/hid/usbhid/hid-core.c:1432
 usb_probe_interface+0x696/0xc00 drivers/usb/core/driver.c:403
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d3/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x25d/0x2f0 drivers/base/bus.c:459
 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xc00 drivers/base/core.c:3692
 usb_set_configuration+0x1ad4/0x20b0 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:298
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d3/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x25d/0x2f0 drivers/base/bus.c:459
 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xc00 drivers/base/core.c:3692
 usb_new_device+0x9ed/0x1590 drivers/usb/core/hub.c:2662
 hub_port_connect drivers/usb/core/hub.c:5533 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5673 [inline]
 port_event drivers/usb/core/hub.c:5837 [inline]
 hub_event+0x2c81/0x4270 drivers/usb/core/hub.c:5919
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319
 worker_thread+0xc58/0x1250 kernel/workqueue.c:3400
 kthread+0x2c7/0x370 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

The buggy address belongs to the object at ffff88811cc88000
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 1 bytes inside of
 allocated 7-byte region [ffff88811cc88000, ffff88811cc88007)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11cc88
anon flags: 0x4000000000000000(zone=1)
page_type: f5(slab)
raw: 4000000000000000 ffff888100041500 0000000000000000 dead000000000001
raw: 0000000000000000 0000000080800080 00000001f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x152cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 764, tgid 763 (syz.3.143), ts 36080127184, free_ts 36072744233
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x3b9/0x3f0 mm/page_alloc.c:1795
 prep_new_page+0x1c/0x120 mm/page_alloc.c:1803
 get_page_from_freelist+0x46bb/0x4750 mm/page_alloc.c:3854
 __alloc_pages_noprof+0x30d/0x6c0 mm/page_alloc.c:5186
 alloc_slab_page+0x6b/0x1f0 mm/slub.c:-1
 allocate_slab+0x69/0x440 mm/slub.c:2659
 new_slab mm/slub.c:2713 [inline]
 ___slab_alloc+0x59a/0x8b0 mm/slub.c:3901
 __slab_alloc mm/slub.c:3991 [inline]
 __slab_alloc_node mm/slub.c:4044 [inline]
 slab_alloc_node mm/slub.c:4205 [inline]
 __do_kmalloc_node mm/slub.c:4350 [inline]
 __kmalloc_node_noprof+0x23e/0x450 mm/slub.c:4357
 kmalloc_node_noprof include/linux/slab.h:908 [inline]
 __vmalloc_area_node mm/vmalloc.c:3652 [inline]
 __vmalloc_node_range_noprof+0x544/0x1420 mm/vmalloc.c:3856
 __vmalloc_node_noprof mm/vmalloc.c:3927 [inline]
 __vmalloc_noprof+0xfe/0x1d0 mm/vmalloc.c:3941
 __vmalloc_array_noprof mm/util.c:799 [inline]
 __vcalloc_noprof+0x3a/0x50 mm/util.c:822
 kvm_alloc_memslot_metadata arch/x86/kvm/x86.c:12977 [inline]
 kvm_arch_prepare_memory_region+0x2ec/0xa60 arch/x86/kvm/x86.c:13051
 kvm_prepare_memory_region virt/kvm/kvm_main.c:1688 [inline]
 kvm_set_memslot+0x594/0x13f0 virt/kvm/kvm_main.c:1918
 __kvm_set_memory_region+0x87c/0xb80 virt/kvm/kvm_main.c:2097
 kvm_set_memory_region+0x2f/0x50 virt/kvm/kvm_main.c:2118
 kvm_vm_ioctl_set_memory_region virt/kvm/kvm_main.c:2130 [inline]
 kvm_vm_ioctl+0x9ad/0xb80 virt/kvm/kvm_main.c:5233
page last free pid 721 tgid 721 stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1321 [inline]
 free_unref_page+0xae5/0xdd0 mm/page_alloc.c:2810
 __free_pages+0x6b/0x3b0 mm/page_alloc.c:5273
 free_pages+0x86/0x90 mm/page_alloc.c:5286
 mon_free_buff drivers/usb/mon/mon_bin.c:1359 [inline]
 mon_bin_release+0x145/0x210 drivers/usb/mon/mon_bin.c:795
 __fput+0x1fe/0xa00 fs/file_table.c:431
 ____fput+0x20/0x30 fs/file_table.c:459
 task_work_run+0x1e3/0x250 kernel/task_work.c:240
 resume_user_mode_work+0x36/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x64/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Memory state around the buggy address:
 ffff88811cc87f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88811cc87f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88811cc88000: 07 fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
                   ^
 ffff88811cc88080: 04 fc fc fc 00 fc fc fc fa fc fc fc fa fc fc fc
 ffff88811cc88100: fa fc fc fc fa fc fc fc fa fc fc fc fa fc fc fc
==================================================================
microsoft 0003:045E:07DA.0015: No inputs registered, leaving
microsoft 0003:045E:07DA.0015: hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.1-1/input0
microsoft 0003:045E:07DA.0015: no inputs found
microsoft 0003:045E:07DA.0015: could not initialize ff, continuing anyway
usb 2-1: USB disconnect, device number 29