usb-storage 4-1:0.20: Quirks match for vid 04e6 pid 000b: 4 scsi host1: usb-storage 4-1:0.20 non-slab/vmalloc memory list_add corruption. prev->next should be next (ffffffff8ef03920), but was ffffffff810012a6. (prev=ffff888055b0c250). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:34! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: events request_module_async RIP: 0010:__list_add_valid_or_report+0x123/0x130 lib/list_debug.c:32 Code: e8 92 35 71 fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 93 fd 92 fd 49 8b 16 48 c7 c7 a0 06 bf 8b 48 89 de 4c 89 f1 e8 de d5 94 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:ffffc900001e79e0 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffffffff8ef03920 RCX: 9312e5ae8a653700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff1de0725 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba650 R12: 1ffff1100ab6184a R13: dffffc0000000000 R14: ffff888055b0c250 R15: ffff888055958250 FS: 0000000000000000(0000) GS:ffff88812623e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd7181b3ad8 CR3: 0000000077ed8000 CR4: 00000000003526f0 Call Trace: __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 kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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_add_valid_or_report+0x123/0x130 lib/list_debug.c:32 Code: e8 92 35 71 fd 43 80 3c 2c 00 74 08 4c 89 f7 e8 93 fd 92 fd 49 8b 16 48 c7 c7 a0 06 bf 8b 48 89 de 4c 89 f1 e8 de d5 94 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:ffffc900001e79e0 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffffffff8ef03920 RCX: 9312e5ae8a653700 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff1de0725 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba650 R12: 1ffff1100ab6184a R13: dffffc0000000000 R14: ffff888055b0c250 R15: ffff888055958250 FS: 0000000000000000(0000) GS:ffff88812623e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000002cf030 CR3: 000000007787c000 CR4: 00000000003526f0