list_add double add: new=ffff888020422540, prev=ffff888020422540, next=ffff8881401b9100. ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:33! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 48 Comm: kworker/u5:0 Not tainted 6.0.0-rc4-syzkaller-00302-gb96fbd602d35 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Workqueue: hci0 hci_rx_work RIP: 0010:__list_add_valid.cold+0x42/0x58 lib/list_debug.c:33 Code: e8 73 f6 f0 ff 0f 0b 48 c7 c7 40 f9 48 8a e8 65 f6 f0 ff 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 40 fb 48 8a e8 4e f6 f0 ff <0f> 0b 48 89 f1 48 c7 c7 c0 fa 48 8a 4c 89 e6 e8 3a f6 f0 ff 0f 0b RSP: 0018:ffffc90000b97800 EFLAGS: 00010282 RAX: 0000000000000058 RBX: ffff88801fae1298 RCX: 0000000000000000 RDX: ffff888011bfbb00 RSI: ffffffff8161f408 RDI: fffff52000172ef2 RBP: ffff888020422540 R08: 0000000000000058 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881401b9100 R13: ffff888020422550 R14: ffff888020422558 R15: ffff888020422540 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ec51a57528 CR3: 0000000023f27000 CR4: 0000000000350ee0 Call Trace: __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] kobj_kset_join lib/kobject.c:164 [inline] kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 device_add+0x368/0x1e90 drivers/base/core.c:3452 hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53 hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799 hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110 hci_event_func net/bluetooth/hci_event.c:7440 [inline] hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495 hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid.cold+0x42/0x58 lib/list_debug.c:33 Code: e8 73 f6 f0 ff 0f 0b 48 c7 c7 40 f9 48 8a e8 65 f6 f0 ff 0f 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 40 fb 48 8a e8 4e f6 f0 ff <0f> 0b 48 89 f1 48 c7 c7 c0 fa 48 8a 4c 89 e6 e8 3a f6 f0 ff 0f 0b RSP: 0018:ffffc90000b97800 EFLAGS: 00010282 RAX: 0000000000000058 RBX: ffff88801fae1298 RCX: 0000000000000000 RDX: ffff888011bfbb00 RSI: ffffffff8161f408 RDI: fffff52000172ef2 RBP: ffff888020422540 R08: 0000000000000058 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881401b9100 R13: ffff888020422550 R14: ffff888020422558 R15: ffff888020422540 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ec51a57528 CR3: 0000000023f27000 CR4: 0000000000350ee0