em28xx 5-1:0.130: No AC97 audio processor list_add corruption. prev->next should be next (ffffffff8dc4cde0), but was 0000000000000000. (prev=ffff88804b5a4250). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:30! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 791 Comm: kworker/1:2 Not tainted 6.3.0-rc2-syzkaller-geaba52d63bfc #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Workqueue: usb_hub_wq hub_event RIP: 0010:__list_add_valid+0xb9/0x100 lib/list_debug.c:30 Code: e8 ac 10 53 fd 0f 0b 4c 89 e1 48 c7 c7 60 8f a6 8a e8 9b 10 53 fd 0f 0b 48 89 f1 48 c7 c7 e0 8f a6 8a 4c 89 e6 e8 87 10 53 fd <0f> 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 90 a6 8a e8 70 10 53 RSP: 0018:ffffc900037f6f58 EFLAGS: 00010282 RAX: 0000000000000075 RBX: 0000000000000008 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8166a45c RDI: 0000000000000005 RBP: ffff88804b22c250 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8dc4cde0 R13: ffff88804b22c000 R14: ffff88804b22c168 R15: ffff88801c20a000 FS: 0000000000000000(0000) GS:ffff88802ca80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78d059d090 CR3: 000000002509e000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] em28xx_init_extension+0x48/0x1f0 drivers/media/usb/em28xx/em28xx-core.c:1113 em28xx_init_dev.constprop.0+0x1671/0x3280 drivers/media/usb/em28xx/em28xx-cards.c:3627 em28xx_usb_probe+0x1130/0x36b0 drivers/media/usb/em28xx/em28xx-cards.c:3982 usb_probe_interface+0x30f/0x960 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:552 [inline] really_probe+0x240/0xca0 drivers/base/dd.c:631 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:768 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:798 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:926 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:998 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11c4/0x1c50 drivers/base/core.c:3589 usb_set_configuration+0x10ee/0x1af0 drivers/usb/core/message.c:2171 usb_generic_driver_probe+0xcf/0x130 drivers/usb/core/generic.c:238 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:552 [inline] really_probe+0x240/0xca0 drivers/base/dd.c:631 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:768 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:798 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:926 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:998 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11c4/0x1c50 drivers/base/core.c:3589 usb_new_device+0xcb2/0x19d0 drivers/usb/core/hub.c:2575 hub_port_connect drivers/usb/core/hub.c:5407 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x2d9e/0x4e40 drivers/usb/core/hub.c:5793 process_one_work+0x991/0x15c0 kernel/workqueue.c:2390 process_scheduled_works kernel/workqueue.c:2453 [inline] worker_thread+0x858/0x1090 kernel/workqueue.c:2539 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid+0xb9/0x100 lib/list_debug.c:30 Code: e8 ac 10 53 fd 0f 0b 4c 89 e1 48 c7 c7 60 8f a6 8a e8 9b 10 53 fd 0f 0b 48 89 f1 48 c7 c7 e0 8f a6 8a 4c 89 e6 e8 87 10 53 fd <0f> 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 60 90 a6 8a e8 70 10 53 RSP: 0018:ffffc900037f6f58 EFLAGS: 00010282 RAX: 0000000000000075 RBX: 0000000000000008 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8166a45c RDI: 0000000000000005 RBP: ffff88804b22c250 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8dc4cde0 R13: ffff88804b22c000 R14: ffff88804b22c168 R15: ffff88801c20a000 FS: 0000000000000000(0000) GS:ffff88802ca80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78d059d090 CR3: 000000004b193000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400