> int main() > { > int fd = open("/dev/kvm", 0x80102ul); > int vm = ioctl(fd, KVM_CREATE_VM, 0); > int cpu = ioctl(vm, KVM_CREATE_VCPU, 4); Not even a memory region :) So maybe the first memory access directly triggers a fault? > ioctl(cpu, KVM_RUN, 0); > return 0; > } > > And, yes, this in fact triggers instant reboot of kernel (running in qemu). > Am I missing something here? > > +kvm maintainers, you can see full thread here: > https://groups.google.com/forum/#!topic/syzkaller-bugs/_oveOKGm3jw > -- Thanks, David / dhildenb