list_add corruption. prev->next should be next (ffffffff8fc129e0), but was 0000000b03b6a3b9. (prev=ffff888069abc250).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:34!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5889 Comm: kworker/1:4 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: events request_module_async
RIP: 0010:__list_add_valid_or_report+0x123/0x130 lib/list_debug.c:32
Code: e8 a2 87 48 fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 e3 24 6a fd 49 8b 16 48 c7 c7 60 89 4a 8c 48 89 de 4c 89 f1 e8 8e 7d 61 fc 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90004477ac0 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffffffff8fc129e0 RCX: dcb316b9c6167300
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffffffff1f8253d R08: ffff8880b85247d3 R09: 1ffff110170a48fa
R10: dffffc0000000000 R11: ffffed10170a48fb R12: 1ffff1100d35784a
R13: dffffc0000000000 R14: ffff888069abc250 R15: ffff88806a054250
FS:  0000000000000000(0000) GS:ffff888124ee1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6f99be9e80 CR3: 000000007ce78000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:96 [inline]
 __list_add include/linux/list.h:158 [inline]
 list_add_tail include/linux/list.h:191 [inline]
 em28xx_init_extension+0x56/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1114
 process_one_work+0x9ab/0x1780 kernel/workqueue.c:3288
 process_scheduled_works kernel/workqueue.c:3379 [inline]
 worker_thread+0xba8/0x11e0 kernel/workqueue.c:3465
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0x123/0x130 lib/list_debug.c:32
Code: e8 a2 87 48 fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 e3 24 6a fd 49 8b 16 48 c7 c7 60 89 4a 8c 48 89 de 4c 89 f1 e8 8e 7d 61 fc 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90004477ac0 EFLAGS: 00010246
RAX: 0000000000000075 RBX: ffffffff8fc129e0 RCX: dcb316b9c6167300
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffffffff1f8253d R08: ffff8880b85247d3 R09: 1ffff110170a48fa
R10: dffffc0000000000 R11: ffffed10170a48fb R12: 1ffff1100d35784a
R13: dffffc0000000000 R14: ffff888069abc250 R15: ffff88806a054250
FS:  0000000000000000(0000) GS:ffff888124ee1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cffe574220 CR3: 000000007ce78000 CR4: 00000000003526f0