==================================================================
BUG: KASAN: stack-out-of-bounds in do_general_protection+0x2ac/0x2f0 arch/x86/kernel/traps.c:539
Read of size 8 at addr ffff8801932a7338 by task syz-executor4/8852

CPU: 0 PID: 8852 Comm: syz-executor4 Not tainted 4.18.0-rc6-next-20180725+ #18
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 ? dump_stack