------------[ cut here ]------------ WARNING: CPU: 0 PID: 13508 at drivers/tty/tty_ioctl.c:318 tty_set_termios+0x708/0x810 drivers/tty/tty_ioctl.c:318 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 13508 Comm: kworker/u5:3 Not tainted 4.14.214-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci6 hci_power_on Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x4b kernel/panic.c:547 report_bug+0x208/0x249 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:tty_set_termios+0x708/0x810 drivers/tty/tty_ioctl.c:318 RSP: 0018:ffff88804f6f7b20 EFLAGS: 00010297 RAX: ffff8880a06563c0 RBX: ffff88804f6f7c28 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffff88804f6f7c28 RDI: ffff8880b0a5a938 RBP: ffff8880b0a5a900 R08: 0000000000000000 R09: 00000000000405b0 R10: ffff8880a0656c98 R11: ffff8880a06563c0 R12: ffff8880b5034280 R13: ffff88809a664d40 R14: 000000000001c200 R15: ffff88805496c658 hci_uart_set_baudrate+0x13d/0x270 drivers/bluetooth/hci_ldisc.c:389 hci_uart_setup+0x8c/0x410 drivers/bluetooth/hci_ldisc.c:412 hci_dev_do_open+0x34c/0xe30 net/bluetooth/hci_core.c:1384 hci_power_on+0x97/0x3b0 net/bluetooth/hci_core.c:2080 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Kernel Offset: disabled Rebooting in 86400 seconds..