------------[ cut here ]------------ WARNING: CPU: 0 PID: 4328 at net/bluetooth/hci_conn.c:668 hci_conn_timeout+0x204/0x41c net/bluetooth/hci_conn.c:668 Modules linked in: CPU: 0 PID: 4328 Comm: kworker/u5:1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: hci4 hci_conn_timeout pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : hci_conn_timeout+0x204/0x41c net/bluetooth/hci_conn.c:668 lr : hci_conn_timeout+0x204/0x41c net/bluetooth/hci_conn.c:668 sp : ffff800021107b60 x29: ffff800021107b60 x28: 0000000000000000 x27: ffff0000f1812330 x26: 0000000000000001 x25: ffff0000d657a000 x24: ffff0000c4ade000 x23: ffff0000c0886c18 x22: dfff800000000000 x21: 00000000ffffffff x20: ffff0000f1812000 x19: ffff0000f1812330 x18: 000000000004fffe x17: ffff8000153d71a0 x16: ffff800011b3e320 x15: 000000000004ffff x14: 0000000000000001 x13: 1fffe0001e302402 x12: 0000000000000000 x11: ff00800010d088ac x10: 0000000000000000 x9 : ffff800010d088ac x8 : ffff0000c70d5400 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff80001848ed18 x4 : 0000000000000008 x3 : ffff800010d086e4 x2 : 0000000000000000 x1 : 00000000ffffffff x0 : 0000000000000000 Call trace: hci_conn_timeout+0x204/0x41c net/bluetooth/hci_conn.c:668 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 4476 hardirqs last enabled at (4475): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (4475): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (4476): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3914): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (3914): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (3901): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- Bluetooth: hci0: command 0x0406 tx timeout