usb 1-1: Direct firmware load for ueagle-atm/adi930.fw failed with error -2 usb 1-1: Falling back to sysfs fallback for: ueagle-atm/adi930.fw ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] BUG: KASAN: use-after-free in kernfs_get+0x1c/0x90 fs/kernfs/dir.c:496 Read of size 4 at addr ffff88801ded39f8 by task kworker/1:2/2510 CPU: 1 PID: 2510 Comm: kworker/1:2 Not tainted 5.17.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events request_firmware_work_func Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106 print_address_description+0x65/0x3a0 mm/kasan/report.c:255 __kasan_report mm/kasan/report.c:442 [inline] kasan_report+0x19a/0x1f0 mm/kasan/report.c:459 kasan_check_range+0x2b5/0x2f0 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] kernfs_get+0x1c/0x90 fs/kernfs/dir.c:496 sysfs_get include/linux/sysfs.h:635 [inline] create_dir lib/kobject.c:111 [inline] kobject_add_internal+0x5e5/0xb50 lib/kobject.c:255 kobject_add_varg lib/kobject.c:390 [inline] kobject_add+0x14c/0x210 lib/kobject.c:442 class_dir_create_and_add drivers/base/core.c:2942 [inline] get_device_parent+0x3d5/0x430 drivers/base/core.c:2997 device_add+0x3b7/0x16d0 drivers/base/core.c:3326 fw_load_sysfs_fallback+0xd2/0x7d0 drivers/base/firmware_loader/fallback.c:512 fw_load_from_user_helper+0x242/0x320 drivers/base/firmware_loader/fallback.c:588 _request_firmware+0x3b9/0x670 drivers/base/firmware_loader/main.c:774 request_firmware_work_func+0x128/0x270 drivers/base/firmware_loader/main.c:1020 process_one_work+0x86c/0x1190 kernel/workqueue.c:2307 worker_thread+0xab1/0x1300 kernel/workqueue.c:2454 kthread+0x2a3/0x2d0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Allocated by task 2510: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] __kasan_slab_alloc+0xb2/0xe0 mm/kasan/common.c:469 kasan_slab_alloc include/linux/kasan.h:260 [inline] slab_post_alloc_hook mm/slab.h:732 [inline] slab_alloc_node mm/slub.c:3230 [inline] slab_alloc mm/slub.c:3238 [inline] kmem_cache_alloc+0x1c9/0x310 mm/slub.c:3243 kmem_cache_zalloc include/linux/slab.h:704 [inline] __kernfs_new_node+0xdb/0x720 fs/kernfs/dir.c:585 kernfs_new_node fs/kernfs/dir.c:647 [inline] kernfs_create_dir_ns+0x90/0x220 fs/kernfs/dir.c:994 sysfs_create_dir_ns+0x181/0x390 fs/sysfs/dir.c:59 create_dir lib/kobject.c:89 [inline] kobject_add_internal+0x418/0xb50 lib/kobject.c:255 kobject_add_varg lib/kobject.c:390 [inline] kobject_add+0x14c/0x210 lib/kobject.c:442 class_dir_create_and_add drivers/base/core.c:2942 [inline] get_device_parent+0x3d5/0x430 drivers/base/core.c:2997 device_add+0x3b7/0x16d0 drivers/base/core.c:3326 fw_load_sysfs_fallback+0xd2/0x7d0 drivers/base/firmware_loader/fallback.c:512 fw_load_from_user_helper+0x242/0x320 drivers/base/firmware_loader/fallback.c:588 _request_firmware+0x3b9/0x670 drivers/base/firmware_loader/main.c:774 request_firmware_work_func+0x128/0x270 drivers/base/firmware_loader/main.c:1020 process_one_work+0x86c/0x1190 kernel/workqueue.c:2307 worker_thread+0xab1/0x1300 kernel/workqueue.c:2454 kthread+0x2a3/0x2d0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Freed by task 7376: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x180 mm/kasan/common.c:366 kasan_slab_free include/linux/kasan.h:236 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1754 slab_free mm/slub.c:3509 [inline] kmem_cache_free+0xb6/0x1c0 mm/slub.c:3526 kernfs_put+0x340/0x490 fs/kernfs/dir.c:539 __kernfs_remove+0xe80/0x1150 fs/kernfs/dir.c:1388 kernfs_remove+0x6c/0x80 fs/kernfs/dir.c:1403 __kobject_del+0xcc/0x310 lib/kobject.c:620 kobject_del+0x41/0x60 lib/kobject.c:643 device_del+0xa1e/0xbf0 drivers/base/core.c:3603 usb_disconnect+0x56f/0x8a0 drivers/usb/core/hub.c:2254 hub_port_connect+0x29c/0x2910 drivers/usb/core/hub.c:5202 hub_port_connect_change+0x5f9/0xc20 drivers/usb/core/hub.c:5502 port_event+0xca0/0x13e0 drivers/usb/core/hub.c:5660 hub_event+0x4ed/0xe40 drivers/usb/core/hub.c:5742 process_one_work+0x86c/0x1190 kernel/workqueue.c:2307 process_scheduled_works kernel/workqueue.c:2370 [inline] worker_thread+0xe18/0x1300 kernel/workqueue.c:2456 kthread+0x2a3/0x2d0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 The buggy address belongs to the object at ffff88801ded39f8 which belongs to the cache kernfs_node_cache of size 168 The buggy address is located 0 bytes inside of 168-byte region [ffff88801ded39f8, ffff88801ded3aa0) The buggy address belongs to the page: page:ffffea000077b4c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ded3 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0001d9dd80 dead000000000002 ffff888140007b40 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3627, ts 120049121188, free_ts 120016924446 prep_new_page mm/page_alloc.c:2434 [inline] get_page_from_freelist+0x729/0x9e0 mm/page_alloc.c:4165 __alloc_pages+0x255/0x580 mm/page_alloc.c:5389 alloc_slab_page mm/slub.c:1799 [inline] allocate_slab+0xce/0x3f0 mm/slub.c:1944 new_slab mm/slub.c:2004 [inline] ___slab_alloc+0x3fe/0xc30 mm/slub.c:3018 __slab_alloc mm/slub.c:3105 [inline] slab_alloc_node mm/slub.c:3196 [inline] slab_alloc mm/slub.c:3238 [inline] kmem_cache_alloc+0x276/0x310 mm/slub.c:3243 kmem_cache_zalloc include/linux/slab.h:704 [inline] __kernfs_new_node+0xdb/0x720 fs/kernfs/dir.c:585 kernfs_new_node+0x95/0x160 fs/kernfs/dir.c:647 __kernfs_create_file+0x45/0x2e0 fs/kernfs/file.c:987 sysfs_add_file_mode_ns+0x21d/0x330 fs/sysfs/file.c:294 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x54c/0xed0 fs/sysfs/group.c:148 internal_create_groups fs/sysfs/group.c:188 [inline] sysfs_create_groups+0x5d/0x130 fs/sysfs/group.c:214 create_dir lib/kobject.c:100 [inline] kobject_add_internal+0x5a1/0xb50 lib/kobject.c:255 kobject_add_varg lib/kobject.c:390 [inline] kobject_init_and_add+0x123/0x190 lib/kobject.c:473 netdev_queue_add_kobject net/core/net-sysfs.c:1653 [inline] netdev_queue_update_kobjects+0x214/0x4c0 net/core/net-sysfs.c:1705 register_queue_kobjects net/core/net-sysfs.c:1766 [inline] netdev_register_kobject+0x263/0x310 net/core/net-sysfs.c:2012 register_netdevice+0x127a/0x1c00 net/core/dev.c:9667 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1352 [inline] free_pcp_prepare+0xd1c/0xe00 mm/page_alloc.c:1404 free_unref_page_prepare mm/page_alloc.c:3325 [inline] free_unref_page+0x7d/0x580 mm/page_alloc.c:3404 free_slab mm/slub.c:2043 [inline] discard_slab mm/slub.c:2049 [inline] __unfreeze_partials+0x1ab/0x200 mm/slub.c:2536 put_cpu_partial+0x116/0x180 mm/slub.c:2612 do_slab_free mm/slub.c:3497 [inline] ___cache_free+0x107/0x160 mm/slub.c:3516 qlist_free_all mm/kasan/quarantine.c:176 [inline] kasan_quarantine_reduce+0x169/0x1f0 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:446 kasan_slab_alloc include/linux/kasan.h:260 [inline] slab_post_alloc_hook mm/slab.h:732 [inline] slab_alloc_node mm/slub.c:3230 [inline] kmem_cache_alloc_node+0x201/0x370 mm/slub.c:3266 __alloc_skb+0xd8/0x5a0 net/core/skbuff.c:414 alloc_skb include/linux/skbuff.h:1158 [inline] nlmsg_new include/net/netlink.h:953 [inline] rtmsg_ifinfo_build_skb+0x81/0x190 net/core/rtnetlink.c:3833 rtmsg_ifinfo_event net/core/rtnetlink.c:3869 [inline] rtnetlink_event+0xed/0x1b0 net/core/rtnetlink.c:5647 notifier_call_chain kernel/notifier.c:84 [inline] raw_notifier_call_chain+0xe7/0x170 kernel/notifier.c:392 call_netdevice_notifiers_info net/core/dev.c:1919 [inline] netdev_lower_state_changed+0x1a4/0x250 net/core/dev.c:7894 team_lower_state_changed drivers/net/team/team.c:89 [inline] team_refresh_port_linkup drivers/net/team/team.c:99 [inline] __team_port_change_send+0x20b/0x5a0 drivers/net/team/team.c:2902 __team_port_change_check drivers/net/team/team.c:2949 [inline] team_port_change_check+0x9c/0x210 drivers/net/team/team.c:2971 team_device_event+0x388/0x410 drivers/net/team/team.c:3000 Memory state around the buggy address: ffff88801ded3880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc ffff88801ded3900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88801ded3980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa ^ ffff88801ded3a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88801ded3a80: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb ==================================================================