usb 3-1: Direct firmware load for ueagle-atm/eagleI.fw failed with error -2
usb 3-1: Falling back to sysfs fallback for: ueagle-atm/eagleI.fw
==================================================================
BUG: KASAN: slab-use-after-free in kernfs_root fs/kernfs/kernfs-internal.h:68 [inline]
BUG: KASAN: slab-use-after-free in kernfs_add_one+0x4cb/0x510 fs/kernfs/dir.c:797
Read of size 8 at addr ffff88807a2e4770 by task kworker/1:0/804

CPU: 1 PID: 804 Comm: kworker/1:0 Not tainted 6.7.0-rc6-syzkaller-00303-g3f82f1c3a036 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events request_firmware_work_func
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0xc4/0x620 mm/kasan/report.c:475
 kasan_report+0xda/0x110 mm/kasan/report.c:588
 kernfs_root fs/kernfs/kernfs-internal.h:68 [inline]
 kernfs_add_one+0x4cb/0x510 fs/kernfs/dir.c:797
 kernfs_create_dir_ns+0x181/0x210 fs/kernfs/dir.c:1050
 sysfs_create_dir_ns+0x13b/0x2b0 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:73 [inline]
 kobject_add_internal+0x2c8/0x970 lib/kobject.c:238
 kobject_add_varg lib/kobject.c:372 [inline]
 kobject_add+0x16f/0x240 lib/kobject.c:424
 device_add+0x289/0x1aa0 drivers/base/core.c:3563
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:86 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:162 [inline]
 firmware_fallback_sysfs+0x2e8/0xbd0 drivers/base/firmware_loader/fallback.c:238
 _request_firmware+0xe3a/0x1260 drivers/base/firmware_loader/main.c:910
 request_firmware_work_func+0xeb/0x240 drivers/base/firmware_loader/main.c:1161
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
 process_scheduled_works kernel/workqueue.c:2700 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>

Allocated by task 804:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook mm/slab.h:763 [inline]
 slab_alloc_node mm/slub.c:3478 [inline]
 slab_alloc mm/slub.c:3486 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3493 [inline]
 kmem_cache_alloc+0x15d/0x2f0 mm/slub.c:3502
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 __kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:615
 kernfs_new_node fs/kernfs/dir.c:679 [inline]
 kernfs_create_dir_ns+0x9a/0x210 fs/kernfs/dir.c:1040
 sysfs_create_dir_ns+0x13b/0x2b0 fs/sysfs/dir.c:59
 create_dir lib/kobject.c:73 [inline]
 kobject_add_internal+0x2c8/0x970 lib/kobject.c:238
 kobject_add_varg lib/kobject.c:372 [inline]
 kobject_add+0x16f/0x240 lib/kobject.c:424
 device_add+0x289/0x1aa0 drivers/base/core.c:3563
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:86 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:162 [inline]
 firmware_fallback_sysfs+0x2e8/0xbd0 drivers/base/firmware_loader/fallback.c:238
 _request_firmware+0xe3a/0x1260 drivers/base/firmware_loader/main.c:910
 request_firmware_work_func+0xeb/0x240 drivers/base/firmware_loader/main.c:1161
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
 process_scheduled_works kernel/workqueue.c:2700 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

Freed by task 20277:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1800 [inline]
 slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
 slab_free mm/slub.c:3809 [inline]
 kmem_cache_free+0xf8/0x350 mm/slub.c:3831
 kernfs_put.part.0+0x22a/0x490 fs/kernfs/dir.c:569
 kernfs_put+0x47/0x50 fs/kernfs/dir.c:543
 __kernfs_remove+0x3ff/0x650 fs/kernfs/dir.c:1487
 kernfs_remove+0x79/0xa0 fs/kernfs/dir.c:1507
 sysfs_remove_dir+0xc5/0x100 fs/sysfs/dir.c:101
 __kobject_del+0xd3/0x1e0 lib/kobject.c:601
 kobject_del lib/kobject.c:624 [inline]
 kobject_del+0x3f/0x60 lib/kobject.c:616
 device_del+0x66d/0xa50 drivers/base/core.c:3834
 usb_disconnect+0x588/0x910 drivers/usb/core/hub.c:2265
 hub_port_connect drivers/usb/core/hub.c:5280 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
 port_event drivers/usb/core/hub.c:5740 [inline]
 hub_event+0x1db7/0x4e10 drivers/usb/core/hub.c:5822
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
 process_scheduled_works kernel/workqueue.c:2700 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

The buggy address belongs to the object at ffff88807a2e4740
 which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 48 bytes inside of
 freed 168-byte region [ffff88807a2e4740, ffff88807a2e47e8)

The buggy address belongs to the physical page:
page:ffffea0001e8b900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7a2e4
flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000800 ffff888140006dc0 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080110011 00000001ffffffff 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 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 20277, tgid 20277 (kworker/1:6), ts 3543361741374, free_ts 3543360658034
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1537
 prep_new_page mm/page_alloc.c:1544 [inline]
 get_page_from_freelist+0xa25/0x36d0 mm/page_alloc.c:3312
 __alloc_pages+0x22e/0x2420 mm/page_alloc.c:4568
 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133
 alloc_slab_page mm/slub.c:1870 [inline]
 allocate_slab mm/slub.c:2017 [inline]
 new_slab+0x283/0x3c0 mm/slub.c:2070
 ___slab_alloc+0x979/0x1500 mm/slub.c:3223
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
 __slab_alloc_node mm/slub.c:3375 [inline]
 slab_alloc_node mm/slub.c:3468 [inline]
 slab_alloc mm/slub.c:3486 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3493 [inline]
 kmem_cache_alloc+0x2dc/0x2f0 mm/slub.c:3502
 kmem_cache_zalloc include/linux/slab.h:711 [inline]
 __kernfs_new_node+0xd3/0x890 fs/kernfs/dir.c:615
 kernfs_new_node+0x94/0x110 fs/kernfs/dir.c:679
 __kernfs_create_file+0x53/0x340 fs/kernfs/file.c:1025
 sysfs_add_file_mode_ns+0x1ff/0x3b0 fs/sysfs/file.c:307
 create_files fs/sysfs/group.c:64 [inline]
 internal_create_group+0x31c/0xb50 fs/sysfs/group.c:152
 internal_create_groups+0x9d/0x150 fs/sysfs/group.c:192
 device_add_groups drivers/base/core.c:2727 [inline]
 device_add_attrs drivers/base/core.c:2847 [inline]
 device_add+0x7b4/0x1aa0 drivers/base/core.c:3579
 usb_create_ep_devs+0x160/0x2a0 drivers/usb/core/endpoint.c:169
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1137 [inline]
 free_unref_page_prepare+0x4fa/0xaa0 mm/page_alloc.c:2347
 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2487
 mm_free_pgd kernel/fork.c:803 [inline]
 __mmdrop+0xd7/0x480 kernel/fork.c:919
 mmdrop include/linux/sched/mm.h:54 [inline]
 __mmput+0x40a/0x4d0 kernel/fork.c:1360
 mmput+0x62/0x70 kernel/fork.c:1371
 free_bprm+0x144/0x3f0 fs/exec.c:1490
 kernel_execve+0x3e7/0x4e0 fs/exec.c:2024
 call_usermodehelper_exec_async+0x256/0x4c0 kernel/umh.c:110
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

Memory state around the buggy address:
 ffff88807a2e4600: fb fb fb fc fc fc fc fc fc fc fc 00 00 00 00 00
 ffff88807a2e4680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88807a2e4700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
                                                             ^
 ffff88807a2e4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc
 ffff88807a2e4800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================