audit: type=1400 audit(1588184650.998:8): avc:  denied  { execmem } for  pid=6336 comm="syz-executor815" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1191 at drivers/tty/tty_ioctl.c:318 tty_set_termios+0x71e/0x840 drivers/tty/tty_ioctl.c:318
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 1191 Comm: kworker/u5:0 Not tainted 4.14.177-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: hci0 hci_power_on
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x13e/0x194 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x2f/0x30 kernel/panic.c:547
 report_bug+0x20a/0x248 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:963
RIP: 0010:tty_set_termios+0x71e/0x840 drivers/tty/tty_ioctl.c:318
RSP: 0018:ffff8880a79afb28 EFLAGS: 00010297
RAX: ffff8880a79a0400 RBX: 1ffff11014f35f68 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8880a79afc28 RDI: ffff888218ecb038
RBP: ffff8880a79afc28 R08: dffffc0000000000 R09: ffff8880a79aff18
R10: ffff8880a79afcd8 R11: ffff8880a79a0400 R12: ffff888218ecb000
R13: 000000000001c200 R14: 000000000001c200 R15: ffff888099cda040
 hci_uart_set_baudrate+0x13f/0x190 drivers/bluetooth/hci_ldisc.c:389
 hci_uart_setup+0x8c/0x410 drivers/bluetooth/hci_ldisc.c:412
 hci_dev_do_open+0x546/0xf10 net/bluetooth/hci_core.c:1384
 hci_power_on+0x88/0x3d0 net/bluetooth/hci_core.c:2080
 process_one_work+0x813/0x1540 kernel/workqueue.c:2116
 worker_thread+0x5d1/0x1070 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..