em28xx 4-1:0.179: Closing input extension
em28xx 4-1:0.179: Freeing device
==================================================================
BUG: KASAN: use-after-free in __list_del_entry_valid+0xcc/0xf0 lib/list_debug.c:42
Read of size 8 at addr ffff888044368258 by task kworker/1:3/4873

CPU: 1 PID: 4873 Comm: kworker/1:3 Not tainted 5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x57/0x7d lib/dump_stack.c:105
 print_address_description.constprop.0.cold+0x6c/0x309 mm/kasan/report.c:233
 __kasan_report mm/kasan/report.c:419 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:436
 __list_del_entry_valid+0xcc/0xf0 lib/list_debug.c:42
 __list_del_entry include/linux/list.h:132 [inline]
 list_del include/linux/list.h:146 [inline]
 em28xx_close_extension+0xd8/0x260 drivers/media/usb/em28xx/em28xx-core.c:1146
 em28xx_usb_disconnect.cold+0x13c/0x211 drivers/media/usb/em28xx/em28xx-cards.c:4140
 usb_unbind_interface+0x183/0x7e0 drivers/usb/core/driver.c:458
 __device_release_driver+0x32f/0x660 drivers/base/dd.c:1201
 device_release_driver_internal drivers/base/dd.c:1232 [inline]
 device_release_driver+0x21/0x30 drivers/base/dd.c:1255
 bus_remove_device+0x295/0x550 drivers/base/bus.c:529
 device_del+0x494/0xc10 drivers/base/core.c:3540
 usb_disable_device+0x29c/0x660 drivers/usb/core/message.c:1419
 usb_disconnect.cold+0x209/0x67e drivers/usb/core/hub.c:2221
 hub_port_connect drivers/usb/core/hub.c:5151 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5440 [inline]
 port_event drivers/usb/core/hub.c:5586 [inline]
 hub_event+0xb22/0x36c0 drivers/usb/core/hub.c:5668
 process_one_work+0x84c/0x13d0 kernel/workqueue.c:2276
 process_scheduled_works kernel/workqueue.c:2338 [inline]
 worker_thread+0x74b/0x1040 kernel/workqueue.c:2424
 kthread+0x38b/0x460 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

The buggy address belongs to the page:
page:ffffea000110da00 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x44368
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea000113b308 ffff8880b9f3b248 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), pid 4873, ts 69329143202, free_ts 71481590641
 prep_new_page mm/page_alloc.c:2433 [inline]
 get_page_from_freelist+0xa6f/0x2f50 mm/page_alloc.c:4166
 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5374
 kmalloc_order+0x34/0xf0 mm/slab_common.c:955
 kmalloc_order_trace+0x14/0x120 mm/slab_common.c:971
 kmalloc_large include/linux/slab.h:520 [inline]
 kmalloc include/linux/slab.h:584 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 em28xx_usb_probe+0x177/0xf90 drivers/media/usb/em28xx/em28xx-cards.c:3855
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:517 [inline]
 really_probe+0x1b9/0xb70 drivers/base/dd.c:595
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:747
 driver_probe_device+0x44/0x110 drivers/base/dd.c:777
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:894
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x1db/0x410 drivers/base/dd.c:965
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa2f/0x1e00 drivers/base/core.c:3352
 usb_set_configuration+0x9fc/0x1750 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1343 [inline]
 free_pcp_prepare+0x2c5/0x780 mm/page_alloc.c:1394
 free_unref_page_prepare mm/page_alloc.c:3329 [inline]
 free_unref_page+0x19/0x690 mm/page_alloc.c:3408
 em28xx_ir_fini.cold+0x72/0x115 drivers/media/usb/em28xx/em28xx-input.c:875
 em28xx_close_extension+0xa4/0x260 drivers/media/usb/em28xx/em28xx-core.c:1143
 em28xx_usb_disconnect.cold+0x13c/0x211 drivers/media/usb/em28xx/em28xx-cards.c:4140
 usb_unbind_interface+0x183/0x7e0 drivers/usb/core/driver.c:458
 __device_release_driver+0x32f/0x660 drivers/base/dd.c:1201
 device_release_driver_internal drivers/base/dd.c:1232 [inline]
 device_release_driver+0x21/0x30 drivers/base/dd.c:1255
 bus_remove_device+0x295/0x550 drivers/base/bus.c:529
 device_del+0x494/0xc10 drivers/base/core.c:3540
 usb_disable_device+0x29c/0x660 drivers/usb/core/message.c:1419
 usb_disconnect.cold+0x209/0x67e drivers/usb/core/hub.c:2221
 hub_port_connect drivers/usb/core/hub.c:5151 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5440 [inline]
 port_event drivers/usb/core/hub.c:5586 [inline]
 hub_event+0xb22/0x36c0 drivers/usb/core/hub.c:5668
 process_one_work+0x84c/0x13d0 kernel/workqueue.c:2276
 process_scheduled_works kernel/workqueue.c:2338 [inline]
 worker_thread+0x74b/0x1040 kernel/workqueue.c:2424
 kthread+0x38b/0x460 kernel/kthread.c:319

Memory state around the buggy address:
 ffff888044368100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888044368180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888044368200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                    ^
 ffff888044368280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888044368300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================