==================================================================
BUG: KASAN: slab-out-of-bounds in mcp2221_raw_event+0xf94/0x1030 drivers/hid/hid-mcp2221.c:852
Read of size 1 at addr ffff888107bbffff by task kworker/1:4/5228

CPU: 1 UID: 0 PID: 5228 Comm: kworker/1:4 Not tainted 6.15.0-rc4-syzkaller-00104-g588d032e9e56 #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Workqueue: events legacy_dvb_usb_read_remote_control
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xc3/0x670 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 mcp2221_raw_event+0xf94/0x1030 drivers/hid/hid-mcp2221.c:852
 __hid_input_report.constprop.0+0x311/0x450 drivers/hid/hid-core.c:2117
 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:286
 __usb_hcd_giveback_urb+0x38a/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x39b/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x180e/0x3a20 drivers/usb/gadget/udc/dummy_hcd.c:1994
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x1ff/0xad0 kernel/time/hrtimer.c:1825
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842
 handle_softirqs+0x205/0x8d0 kernel/softirq.c:579
 __do_softirq kernel/softirq.c:613 [inline]
 invoke_softirq kernel/softirq.c:453 [inline]
 __irq_exit_rcu+0xfa/0x160 kernel/softirq.c:680
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5870
Code: 34 0c 0b 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 12 35 1f 09 0f 82 74 02 00 00 8b 35 ca 40 1f 09 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 69 34 0c 0b 0f 85 c7 02 00 00 48 83 c4
RSP: 0018:ffffc900022cf5a0 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff890c2880 RCX: 00000000e307247a
RDX: 0000000000000000 RSI: ffffffff88ab8acb RDI: ffffffff876851e0
RBP: 0000000000000002 R08: b5fcdfe05f49764f R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 rcu_read_lock include/linux/rcupdate.h:841 [inline]
 class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
 unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479
 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4341 [inline]
 __kmalloc_noprof+0x213/0x4d0 mm/slub.c:4353
 kmalloc_noprof include/linux/slab.h:909 [inline]
 usb_alloc_urb+0x66/0xa0 drivers/usb/core/urb.c:75
 usb_internal_control_msg drivers/usb/core/message.c:96 [inline]
 usb_control_msg+0x1d3/0x4a0 drivers/usb/core/message.c:154
 m920x_read drivers/media/usb/dvb-usb/m920x.c:36 [inline]
 m920x_rc_query+0xdf/0x770 drivers/media/usb/dvb-usb/m920x.c:188
 legacy_dvb_usb_read_remote_control+0x109/0x4f0 drivers/media/usb/dvb-usb/dvb-usb-remote.c:123
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 kthread+0x3c2/0x780 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

The buggy address belongs to the object at ffff888107bbf3e0
 which belongs to the cache request_queue of size 2344
The buggy address is located 759 bytes to the right of
 allocated 2344-byte region [ffff888107bbf3e0, ffff888107bbfd08)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107bb8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x200000000000040(head|node=0|zone=2)
page_type: f5(slab)
raw: 0200000000000040 ffff888102aa4780 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800d000d 00000000f5000000 0000000000000000
head: 0200000000000040 ffff888102aa4780 dead000000000122 0000000000000000
head: 0000000000000000 00000000800d000d 00000000f5000000 0000000000000000
head: 0200000000000003 ffffea00041eee01 00000000ffffffff 00000000ffffffff
head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 8175397863, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1718
 prep_new_page mm/page_alloc.c:1726 [inline]
 get_page_from_freelist+0xfec/0x2d90 mm/page_alloc.c:3688
 __alloc_frozen_pages_noprof+0x25c/0x2160 mm/page_alloc.c:4970
 alloc_pages_mpol+0xe4/0x410 mm/mempolicy.c:2301
 alloc_slab_page mm/slub.c:2468 [inline]
 allocate_slab mm/slub.c:2632 [inline]
 new_slab+0x244/0x340 mm/slub.c:2686
 ___slab_alloc+0xda5/0x1940 mm/slub.c:3872
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3962
 __slab_alloc_node mm/slub.c:4037 [inline]
 slab_alloc_node mm/slub.c:4198 [inline]
 kmem_cache_alloc_node_noprof+0x1f6/0x3a0 mm/slub.c:4262
 blk_alloc_queue+0x31/0x760 block/blk-core.c:398
 blk_mq_alloc_queue+0x179/0x290 block/blk-mq.c:4348
 scsi_alloc_sdev+0x88f/0xd80 drivers/scsi/scsi_scan.c:339
 scsi_probe_and_add_lun+0x523/0x7b0 drivers/scsi/scsi_scan.c:1210
 __scsi_scan_target+0x1e4/0x4e0 drivers/scsi/scsi_scan.c:1775
 scsi_scan_channel drivers/scsi/scsi_scan.c:1863 [inline]
 scsi_scan_channel+0x149/0x1e0 drivers/scsi/scsi_scan.c:1839
 scsi_scan_host_selected+0x2ae/0x370 drivers/scsi/scsi_scan.c:1892
 do_scsi_scan_host+0x1ef/0x260 drivers/scsi/scsi_scan.c:2031
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888107bbfe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888107bbff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888107bbff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff888107bc0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888107bc0080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
   0:	34 0c                	xor    $0xc,%al
   2:	0b 83 f8 07 0f 87    	or     -0x78f0f808(%rbx),%eax
   8:	bc 02 00 00 89       	mov    $0x89000002,%esp
   d:	c0 48 0f a3          	rorb   $0xa3,0xf(%rax)
  11:	05 12 35 1f 09       	add    $0x91f3512,%eax
  16:	0f 82 74 02 00 00    	jb     0x290
  1c:	8b 35 ca 40 1f 09    	mov    0x91f40ca(%rip),%esi        # 0x91f40ec
  22:	85 f6                	test   %esi,%esi
  24:	0f 85 8d 00 00 00    	jne    0xb7
* 2a:	48 8b 44 24 30       	mov    0x30(%rsp),%rax <-- trapping instruction
  2f:	65 48 2b 05 69 34 0c 	sub    %gs:0xb0c3469(%rip),%rax        # 0xb0c34a0
  36:	0b
  37:	0f 85 c7 02 00 00    	jne    0x304
  3d:	48                   	rex.W
  3e:	83                   	.byte 0x83
  3f:	c4                   	.byte 0xc4