UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
==================================================================
BUG: KASAN: slab-use-after-free in strlen+0x85/0xa0 lib/string.c:402
Read of size 1 at addr ffff88810caeb758 by task syz.2.609/7434

CPU: 0 UID: 0 PID: 7434 Comm: syz.2.609 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 strlen+0x85/0xa0 lib/string.c:402
 __fortify_strlen include/linux/fortify-string.h:218 [inline]
 str_to_user+0x26/0xa0 drivers/input/evdev.c:774
 evdev_do_ioctl+0x18a0/0x1b30 drivers/input/evdev.c:1174
 evdev_ioctl_handler drivers/input/evdev.c:1275 [inline]
 evdev_ioctl+0x16f/0x1a0 drivers/input/evdev.c:1284
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x119/0x710 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4c26a8e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4c254c6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4c26d16090 RCX: 00007f4c26a8e159
RDX: 0000200000002880 RSI: 0000000080404506 RDI: 0000000000000006
RBP: 00007f4c26b2506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4c26d16128 R14: 00007f4c26d16090 R15: 00007ffd24917178
 </TASK>

Allocated by task 5266:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2d8/0x680 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 usb_create_ep_devs+0x4d/0x2b0 drivers/usb/core/endpoint.c:149
 usb_new_device.part.0+0x15e5/0x1686 drivers/usb/core/hub.c:2738
 usb_new_device drivers/usb/core/hub.c:5833 [inline]
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event.cold+0x51a/0xe9d drivers/usb/core/hub.c:5966
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5266:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x43/0x70 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6499 [inline]
 kfree+0x20c/0x650 mm/slub.c:6792
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device drivers/base/core.c:3884 [inline]
 device_unregister+0x2f/0xe0 drivers/base/core.c:4007
 usb_remove_ep_devs+0x42/0x90 drivers/usb/core/endpoint.c:181
 usb_disconnect+0x561/0x9a0 drivers/usb/core/hub.c:2371
 hub_port_connect drivers/usb/core/hub.c:5420 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x1d46/0x4510 drivers/usb/core/hub.c:5966
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88810caeb000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1880 bytes inside of
 freed 2048-byte region [ffff88810caeb000, ffff88810caeb800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88810cae8000 pfn:0x10cae8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x200000000000240(workingset|head|node=0|zone=2)
page_type: f5(slab)
raw: 0200000000000240 ffff888100042000 ffffea0004f06610 ffffea0004533210
raw: ffff88810cae8000 0000000000080007 00000000f5000000 0000000000000000
head: 0200000000000240 ffff888100042000 ffffea0004f06610 ffffea0004533210
head: ffff88810cae8000 0000000000080007 00000000f5000000 0000000000000000
head: 0200000000000003 fffffffffffffe01 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 4372960817
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0xf4b/0x3440 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2d7/0x2f70 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7410
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __kmalloc_cache_noprof+0x4a1/0x680 mm/slub.c:5559
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 acpi_ds_create_walk_state+0x95/0x300 drivers/acpi/acpica/dswstate.c:518
 acpi_ps_execute_method+0x2c1/0xe90 drivers/acpi/acpica/psxface.c:134
 acpi_ns_evaluate+0x640/0x1670 drivers/acpi/acpica/nseval.c:205
 acpi_ut_evaluate_object+0xf7/0x610 drivers/acpi/acpica/uteval.c:60
 acpi_rs_get_method_data+0xa1/0x160 drivers/acpi/acpica/rsutils.c:650
 acpi_walk_resources+0x178/0x270 drivers/acpi/acpica/rsxface.c:616
 acpi_pci_link_get_current+0x1ce/0x410 drivers/acpi/pci_link.c:254
 acpi_pci_link_set+0x593/0xa80 drivers/acpi/pci_link.c:360
 acpi_pci_link_allocate drivers/acpi/pci_link.c:582 [inline]
 acpi_pci_link_allocate_irq+0x2c2/0xc70 drivers/acpi/pci_link.c:637
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88810caeb600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88810caeb680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88810caeb700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                    ^
 ffff88810caeb780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88810caeb800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================