em28xx 3-1:246.0: Disconnecting em28xx #3 em28xx 3-1:246.0: Disconnecting em28xx non-slab/vmalloc memory list_del corruption. prev->next should be ffff888130010250, but was ffff888114cd8250. (prev=ffff888130018250) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:62! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 3001 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 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 40 cb af 87 e8 37 63 50 fe 90 <0f> 0b 4c 89 e7 e8 6c 2a 26 ff 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc900017f7670 EFLAGS: 00010286 RAX: 000000000000006d RBX: ffff888130010250 RCX: 0000000000000000 RDX: 000000000000006d RSI: ffffffff81919c79 RDI: fffff520002feebf RBP: ffff888130018250 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff888117dc4250 R13: ffff888130010000 R14: ffffffff8a772928 R15: ffffed1026002445 FS: 0000000000000000(0000) GS:ffff8882686ce000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc19f88ff0 CR3: 0000000115cfc000 CR4: 00000000003506f0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:223 [inline] list_del include/linux/list.h:237 [inline] em28xx_close_extension+0x10b/0x2b0 drivers/media/usb/em28xx/em28xx-core.c:1137 em28xx_usb_disconnect.cold+0x13d/0x253 drivers/media/usb/em28xx/em28xx-cards.c:4197 usb_unbind_interface+0x1dd/0x9e0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:573 [inline] device_remove+0x12a/0x180 drivers/base/dd.c:565 __device_release_driver drivers/base/dd.c:1284 [inline] device_release_driver_internal+0x42e/0x600 drivers/base/dd.c:1307 bus_remove_device+0x22f/0x440 drivers/base/bus.c:616 device_del+0x376/0x9b0 drivers/base/core.c:3878 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1478 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2345 hub_port_connect drivers/usb/core/hub.c:5407 [inline] hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x1d0c/0x4af0 drivers/usb/core/hub.c:5953 process_one_work+0xa23/0x19a0 kernel/workqueue.c:3276 process_scheduled_works kernel/workqueue.c:3359 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3440 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x6c3/0xcb0 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 40 cb af 87 e8 37 63 50 fe 90 <0f> 0b 4c 89 e7 e8 6c 2a 26 ff 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc900017f7670 EFLAGS: 00010286 RAX: 000000000000006d RBX: ffff888130010250 RCX: 0000000000000000 RDX: 000000000000006d RSI: ffffffff81919c79 RDI: fffff520002feebf RBP: ffff888130018250 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff888117dc4250 R13: ffff888130010000 R14: ffffffff8a772928 R15: ffffed1026002445 FS: 0000000000000000(0000) GS:ffff8882686ce000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc19f88ff0 CR3: 0000000115cfc000 CR4: 00000000003506f0