Bluetooth: hci4: hardware error 0x00 list_del corruption. prev->next should be ffff0000c90b4668, but was 0000000000000000. (prev=ffff0000c9135a68) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3103 Comm: kworker/u5:7 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 Workqueue: hci4 hci_error_reset pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __list_del_entry_valid+0xbc/0xd0 lib/list_debug.c:59 lr : __list_del_entry_valid+0xbc/0xd0 lib/list_debug.c:59 sp : ffff800013733b10 x29: ffff800013733b10 x28: ffff80000d28b000 x27: ffff0000c9052a25 x26: 0000000000000000 x25: 0000000000000000 x24: ffff000113591000 x23: ffff000113580000 x22: ffff800009a48d54 x21: ffff0000c913c001 x20: ffff0000c90b4660 x19: ffff0000c90b4678 x18: 00000000000000c0 x17: 20747562202c3836 x16: ffff80000db49158 x15: ffff000113580000 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff000113580000 x11: ff808000081c0d5c x10: 0000000000000000 x9 : bb09faa7f26dc000 x8 : bb09faa7f26dc000 x7 : ffff80000819545c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefbecd0 x1 : 0000000100000001 x0 : 000000000000006d Call trace: __list_del_entry_valid+0xbc/0xd0 lib/list_debug.c:59 __list_del_entry include/linux/list.h:134 [inline] list_del include/linux/list.h:148 [inline] klist_release lib/klist.c:189 [inline] kref_put+0x6c/0x1d0 include/linux/kref.h:65 klist_dec_and_del lib/klist.c:206 [inline] klist_put lib/klist.c:217 [inline] klist_del+0x58/0xb0 lib/klist.c:230 device_del+0x140/0x5bc drivers/base/core.c:3683 hci_conn_del_sysfs+0xb0/0xfc net/bluetooth/hci_sysfs.c:78 hci_conn_cleanup+0x2d4/0x380 net/bluetooth/hci_conn.c:147 hci_conn_del+0x144/0x2a8 net/bluetooth/hci_conn.c:1022 hci_conn_hash_flush+0xe8/0x148 net/bluetooth/hci_conn.c:2367 hci_dev_close_sync+0x48c/0x9e0 net/bluetooth/hci_sync.c:4476 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline] hci_error_reset+0xac/0x154 net/bluetooth/hci_core.c:1050 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 Code: d001b460 91346000 aa0803e3 94a76157 (d4210000) ---[ end trace 0000000000000000 ]---