em28xx 4-1:0.0: Disconnecting em28xx #3 em28xx 4-1:0.0: Disconnecting em28xx non-slab/vmalloc memory list_del corruption. prev->next should be ffff888118a54250, but was 0000000000000000. (prev=ffff8881192b0250) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:62! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 4011 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: usb_hub_wq hub_event RIP: 0010:__list_del_entry_valid_or_report+0x14a/0x1d0 lib/list_debug.c:62 Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 20 59 b1 87 e8 07 92 45 fe 90 <0f> 0b 4c 89 e7 e8 bc 18 22 ff 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc90002d5f608 EFLAGS: 00010282 RAX: 000000000000006d RBX: ffff888118a54250 RCX: 0000000000000000 RDX: 000000000000006d RSI: ffffffff8192e649 RDI: fffff520005abeb2 RBP: ffff8881192b0250 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff8881192b8250 R13: ffff888118a54000 R14: ffffffff8a7acd88 R15: ffffed102314ac6f FS: 0000000000000000(0000) GS:ffff888268736000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005595947a7bf0 CR3: 000000010b69e000 CR4: 00000000003506f0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:246 [inline] list_del include/linux/list.h:260 [inline] em28xx_close_extension+0x10b/0x2b0 drivers/media/usb/em28xx/em28xx-core.c:1268 em28xx_usb_disconnect.cold+0x13d/0x253 drivers/media/usb/em28xx/em28xx-cards.c:4423 usb_unbind_interface+0x1dd/0x9e0 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:618 [inline] device_remove+0x12a/0x180 drivers/base/dd.c:610 __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664 device_del+0x376/0x9b0 drivers/base/core.c:3961 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1478 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2350 hub_port_connect drivers/usb/core/hub.c:5412 [inline] hub_port_connect_change drivers/usb/core/hub.c:5712 [inline] port_event drivers/usb/core/hub.c:5876 [inline] hub_event+0x1d0c/0x4af0 drivers/usb/core/hub.c:5958 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322 process_scheduled_works kernel/workqueue.c:3405 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x69a/0xc80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x14a/0x1d0 lib/list_debug.c:62 Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 20 59 b1 87 e8 07 92 45 fe 90 <0f> 0b 4c 89 e7 e8 bc 18 22 ff 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc90002d5f608 EFLAGS: 00010282 RAX: 000000000000006d RBX: ffff888118a54250 RCX: 0000000000000000 RDX: 000000000000006d RSI: ffffffff8192e649 RDI: fffff520005abeb2 RBP: ffff8881192b0250 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff8881192b8250 R13: ffff888118a54000 R14: ffffffff8a7acd88 R15: ffffed102314ac6f FS: 0000000000000000(0000) GS:ffff888268736000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f76af650a40 CR3: 000000010b69e000 CR4: 00000000003506f0