Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 29599 Comm: syz-executor6 Not tainted 4.13.0-next-20170913+ #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:16 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:52
panic+0x1e4/0x417 kernel/panic.c:181
__warn+0x1c4/0x1d9 kernel/panic.c:542
report_bug+0x211/0x2d0 lib/bug.c:183
fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:178
do_trap_no_signal arch/x86/kernel/traps.c:212 [inline]
do_trap+0x260/0x390 arch/x86/kernel/traps.c:261
do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:298
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:311
invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5a30 arch/x86/kvm/x86.c:7256
RSP: 0018:ffff88019cab7670 EFLAGS: 00010212
RAX: 0000000000010000 RBX: ffff8801c18f9000 RCX: ffffc900035e9000
RDX: 0000000000000095 RSI: ffffffff810e0543 RDI: ffff8801d8580a38
RBP: ffff88019cab7a40 R08: 0000000000000001 R09: 0000000000000001
R10: ffff88019cab7a58 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8801c3d3f000 R15: ffff8801d8580800
kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2550
vfs_ioctl fs/ioctl.c:45 [inline]
do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:685
SYSC_ioctl fs/ioctl.c:700 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x451e59
RSP: 002b:00007fe0c67efc08 EFLAGS: 00000216 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000718160 RCX: 0000000000451e59
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000016
RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000000
R13: 0000000000a6f7ef R14: 00007fe0c67f09c0 R15: 0000000000000016
Dumping ftrace buffer:
(ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..