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: use-after-free in kernfs_root fs/kernfs/kernfs-internal.h:66 [inline] BUG: KASAN: use-after-free in kernfs_next_descendant_post fs/kernfs/dir.c:1326 [inline] BUG: KASAN: use-after-free in kernfs_activate fs/kernfs/dir.c:1381 [inline] BUG: KASAN: use-after-free in kernfs_add_one+0x4d2/0x8f0 fs/kernfs/dir.c:806 Read of size 8 at addr ffff8880301d3118 by task kworker/1:8/4397 CPU: 1 PID: 4397 Comm: kworker/1:8 Not tainted 6.1.145-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events request_firmware_work_func Call Trace: dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0xa8/0x220 mm/kasan/report.c:427 kasan_report+0x10b/0x140 mm/kasan/report.c:531 kernfs_root fs/kernfs/kernfs-internal.h:66 [inline] kernfs_next_descendant_post fs/kernfs/dir.c:1326 [inline] kernfs_activate fs/kernfs/dir.c:1381 [inline] kernfs_add_one+0x4d2/0x8f0 fs/kernfs/dir.c:806 kernfs_create_dir_ns+0xda/0x120 fs/kernfs/dir.c:1056 sysfs_create_dir_ns+0x120/0x280 fs/sysfs/dir.c:59 create_dir lib/kobject.c:63 [inline] kobject_add_internal+0x6b8/0xc80 lib/kobject.c:231 kobject_add_varg lib/kobject.c:366 [inline] kobject_add+0x152/0x210 lib/kobject.c:418 class_dir_create_and_add drivers/base/core.c:3234 [inline] get_device_parent+0x380/0x3f0 drivers/base/core.c:3289 device_add+0x335/0xfb0 drivers/base/core.c:3618 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:82 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline] firmware_fallback_sysfs+0x2e5/0x930 drivers/base/firmware_loader/fallback.c:234 _request_firmware+0xcad/0x1290 drivers/base/firmware_loader/main.c:884 request_firmware_work_func+0xac/0x1b0 drivers/base/firmware_loader/main.c:1135 process_one_work+0x898/0x1160 kernel/workqueue.c:2292 worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Allocated by task 4397: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x6b/0x80 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x4b/0x480 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x123/0x2f0 mm/slub.c:3422 kmem_cache_zalloc include/linux/slab.h:689 [inline] __kernfs_new_node+0xd4/0x7d0 fs/kernfs/dir.c:614 kernfs_new_node+0x148/0x250 fs/kernfs/dir.c:690 kernfs_create_dir_ns+0x40/0x120 fs/kernfs/dir.c:1046 sysfs_create_dir_ns+0x120/0x280 fs/sysfs/dir.c:59 create_dir lib/kobject.c:63 [inline] kobject_add_internal+0x6b8/0xc80 lib/kobject.c:231 kobject_add_varg lib/kobject.c:366 [inline] kobject_add+0x152/0x210 lib/kobject.c:418 class_dir_create_and_add drivers/base/core.c:3234 [inline] get_device_parent+0x380/0x3f0 drivers/base/core.c:3289 device_add+0x335/0xfb0 drivers/base/core.c:3618 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:82 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline] firmware_fallback_sysfs+0x2e5/0x930 drivers/base/firmware_loader/fallback.c:234 _request_firmware+0xcad/0x1290 drivers/base/firmware_loader/main.c:884 request_firmware_work_func+0xac/0x1b0 drivers/base/firmware_loader/main.c:1135 process_one_work+0x898/0x1160 kernel/workqueue.c:2292 worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Freed by task 34: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x2d/0x50 mm/kasan/generic.c:516 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] kmem_cache_free+0xf7/0x290 mm/slub.c:3683 kernfs_put+0x319/0x490 fs/kernfs/dir.c:568 __kernfs_remove+0x5db/0x6d0 fs/kernfs/dir.c:1480 kernfs_remove+0x76/0x90 fs/kernfs/dir.c:1500 __kobject_del+0xe1/0x2f0 lib/kobject.c:596 kobject_del+0x41/0x60 lib/kobject.c:619 device_del+0x8f8/0xa70 drivers/base/core.c:3907 usb_disconnect+0x573/0x8a0 drivers/usb/core/hub.c:2312 hub_port_connect drivers/usb/core/hub.c:5333 [inline] hub_port_connect_change drivers/usb/core/hub.c:5629 [inline] port_event drivers/usb/core/hub.c:5785 [inline] hub_event+0x1d20/0x5210 drivers/usb/core/hub.c:5867 process_one_work+0x898/0x1160 kernel/workqueue.c:2292 process_scheduled_works kernel/workqueue.c:2355 [inline] worker_thread+0xd62/0x1250 kernel/workqueue.c:2441 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 The buggy address belongs to the object at ffff8880301d30e8 which belongs to the cache kernfs_node_cache of size 168 The buggy address is located 48 bytes inside of 168-byte region [ffff8880301d30e8, ffff8880301d3190) The buggy address belongs to the physical page: page:ffffea0000c074c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x301d3 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888140009c80 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 34, tgid 34 (kworker/1:1), ts 215275239805, free_ts 215113889235 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x1a26/0x1ac0 mm/page_alloc.c:4328 __alloc_pages+0x1df/0x4e0 mm/page_alloc.c:5614 alloc_slab_page+0x5d/0x160 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x87/0x2c0 mm/slub.c:1992 ___slab_alloc+0xbc6/0x1220 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc+0x1b7/0x2f0 mm/slub.c:3422 kmem_cache_zalloc include/linux/slab.h:689 [inline] __kernfs_new_node+0xd4/0x7d0 fs/kernfs/dir.c:614 kernfs_new_node+0x148/0x250 fs/kernfs/dir.c:690 __kernfs_create_file+0x47/0x2e0 fs/kernfs/file.c:1050 sysfs_add_file_mode_ns+0x234/0x2f0 fs/sysfs/file.c:294 sysfs_merge_group+0x174/0x300 fs/sysfs/group.c:342 dpm_sysfs_add+0xce/0x270 drivers/base/power/sysfs.c:707 device_add+0x715/0xfb0 drivers/base/core.c:3654 usb_create_ep_devs+0x128/0x220 drivers/usb/core/endpoint.c:169 usb_new_device+0xe6c/0x1620 drivers/usb/core/hub.c:2659 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare mm/page_alloc.c:1509 [inline] free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479 __vunmap+0x856/0xa00 mm/vmalloc.c:2718 hid_open_report+0xa4a/0xeb0 drivers/hid/hid-core.c:1305 hid_device_probe+0x284/0x350 drivers/hid/hid-core.c:2634 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2aa/0xc70 drivers/base/dd.c:639 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:785 driver_probe_device+0x4f/0x420 drivers/base/dd.c:815 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:943 bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429 __device_attach+0x29b/0x460 drivers/base/dd.c:1015 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489 device_add+0xa00/0xfb0 drivers/base/core.c:3697 hid_add_device+0x389/0x530 drivers/hid/hid-core.c:2784 usbhid_probe+0xc09/0xfe0 drivers/hid/usbhid/hid-core.c:1427 usb_probe_interface+0x5a0/0xaf0 drivers/usb/core/driver.c:396 Memory state around the buggy address: ffff8880301d3000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880301d3080: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb >ffff8880301d3100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880301d3180: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880301d3200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================