WARNING: CPU: 1 PID: 31882 at mm/util.c:403 kvmalloc_node+0xc3/0xd0 mm/util.c:403
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 31882 Comm: syz-executor6 Not tainted 4.16.0-rc1+ #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:53
 panic+0x1e4/0x41c kernel/panic.c:183
 __warn+0x1dc/0x200 kernel/panic.c:547
 report_bug+0x211/0x2d0 lib/bug.c:184
 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178
 fixup_bug arch/x86/kernel/traps.c:247 [inline]
 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315
 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:988
RIP: 0010:kvmalloc_node+0xc3/0xd0 mm/util.c:403
RSP: 0018:ffff8801a35cf6e8 EFLAGS: 00010216
RAX: 0000000000010000 RBX: 0000000001088220 RCX: ffffffff81970ca3
RDX: 00000000000002fd RSI: ffffc90005679000 RDI: 0000000000000028
RBP: ffff8801a35cf708 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000