microsoft 0003:045E:07DA.0027: unknown main item tag 0x0
microsoft 0003:045E:07DA.0027: unknown main item tag 0x0
microsoft 0003:045E:07DA.0027: 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 896 at addr ffff88812a695f01 by task kworker/0:3/327

CPU: 0 UID: 0 PID: 327 Comm: kworker/0:3 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 327:
 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 ffff88812a695f00
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 1 bytes inside of
 allocated 7-byte region [ffff88812a695f00, ffff88812a695f07)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12a695
flags: 0x4000000000000000(zone=1)
page_type: f5(slab)
raw: 4000000000000000 ffff888100041500 dead000000000100 dead000000000122
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 13910, tgid 13910 (syz-executor), ts 286525718562, free_ts 286478128952
 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_track_caller_noprof+0x23a/0x440 mm/slub.c:4370
 kstrdup+0x4d/0x140 mm/util.c:70
 kstrdup_const+0x45/0x60 mm/util.c:93
 __kernfs_new_node+0x9d/0x700 fs/kernfs/dir.c:620
 kernfs_new_node+0x154/0x280 fs/kernfs/dir.c:700
 kernfs_create_dir_ns+0x4b/0x130 fs/kernfs/dir.c:1061
 sysfs_create_dir_ns+0x11b/0x200 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:73 [inline]
 kobject_add_internal+0x703/0xc20 lib/kobject.c:240
 kobject_add_varg lib/kobject.c:374 [inline]
 kobject_init_and_add+0x126/0x190 lib/kobject.c:457
page last free pid 13916 tgid 13913 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
 _pgd_free arch/x86/mm/pgtable.c:429 [inline]
 pgd_free+0x1b3/0x1d0 arch/x86/mm/pgtable.c:492
 mm_free_pgd kernel/fork.c:794 [inline]
 __mmdrop+0xb2/0x3a0 kernel/fork.c:910
 mmdrop include/linux/sched/mm.h:55 [inline]
 mmdrop_sched include/linux/sched/mm.h:83 [inline]
 mmdrop_lazy_tlb_sched include/linux/sched/mm.h:110 [inline]
 finish_task_switch+0x2a9/0x780 kernel/sched/core.c:5842
 context_switch kernel/sched/core.c:5948 [inline]
 __schedule+0x1333/0x1e00 kernel/sched/core.c:7789
 preempt_schedule_common+0x2d/0x60 kernel/sched/core.c:7972
 preempt_schedule+0xb0/0xd0 kernel/sched/core.c:7996
 preempt_schedule_thunk+0x1a/0x40 arch/x86/entry/thunk.S:12
 __up_write kernel/locking/rwsem.c:1456 [inline]
 up_write+0x9f/0x280 kernel/locking/rwsem.c:1712
 mmap_write_unlock include/linux/mmap_lock.h:171 [inline]
 dup_mmap kernel/fork.c:767 [inline]
 dup_mm kernel/fork.c:1693 [inline]
 copy_mm+0x1655/0x1c20 kernel/fork.c:1745
 copy_process+0x123c/0x3220 kernel/fork.c:2405
 kernel_clone+0x23f/0x830 kernel/fork.c:2818
 __do_sys_clone kernel/fork.c:2963 [inline]
 __se_sys_clone kernel/fork.c:2947 [inline]
 __x64_sys_clone+0x18c/0x1f0 kernel/fork.c:2947
 x64_sys_call+0x2b3c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:57

Memory state around the buggy address:
 ffff88812a695e00: 05 fc fc fc fa fc fc fc 06 fc fc fc fa fc fc fc
 ffff88812a695e80: 05 fc fc fc fa fc fc fc 06 fc fc fc 05 fc fc fc
>ffff88812a695f00: 07 fc fc fc fa fc fc fc 05 fc fc fc 05 fc fc fc
                   ^
 ffff88812a695f80: fa fc fc fc 04 fc fc fc 05 fc fc fc 05 fc fc fc
 ffff88812a696000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
microsoft 0003:045E:07DA.0027: No inputs registered, leaving
microsoft 0003:045E:07DA.0027: hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.8-1/input0
microsoft 0003:045E:07DA.0027: no inputs found
microsoft 0003:045E:07DA.0027: could not initialize ff, continuing anyway
usb 9-1: USB disconnect, device number 17