Bluetooth: hci4: unexpected event for opcode 0x0c25 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6434 at net/bluetooth/hci_conn.c:567 hci_conn_timeout+0xf4/0x1e8 net/bluetooth/hci_conn.c:567 Modules linked in: CPU: 0 UID: 0 PID: 6434 Comm: kworker/u9:8 Not tainted 6.13.0-rc2-syzkaller-g2e7aff49b5da #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: hci4 hci_conn_timeout pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : hci_conn_timeout+0xf4/0x1e8 net/bluetooth/hci_conn.c:567 lr : hci_conn_timeout+0xf4/0x1e8 net/bluetooth/hci_conn.c:567 sp : ffff80009c807ad0 x29: ffff80009c807ad0 x28: ffff80008f97d600 x27: 1fffe0001d7f33ca x26: ffff0000d7407808 x25: ffff0000ebf9a244 x24: dfff800000000000 x23: ffff0000ebf99e40 x22: dfff800000000000 x21: 00000000ffffffff x20: ffff0000cd0b88e8 x19: ffff0000cd0b8000 x18: 0000000000000008 x17: 0000000000000000 x16: ffff800080699390 x15: 0000000000000001 x14: 1fffe00019a17002 x13: 0000000000000000 x12: 0000000000000000 x11: ffff600019a17003 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000ebf99e40 x7 : ffff800080373828 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008a7ca4b8 x2 : 0000000000000000 x1 : 00000000ffffffff x0 : 0000000000000000 Call trace: hci_conn_timeout+0xf4/0x1e8 net/bluetooth/hci_conn.c:567 (P) hci_conn_timeout+0xf4/0x1e8 net/bluetooth/hci_conn.c:567 (L) process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 6316 hardirqs last enabled at (6315): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (6315): [] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202 hardirqs last disabled at (6316): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (6296): [] softirq_handle_end kernel/softirq.c:400 [inline] softirqs last enabled at (6296): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:582 softirqs last disabled at (6287): [] __do_softirq+0x14/0x20 kernel/softirq.c:588 ---[ end trace 0000000000000000 ]---