On Thu, Feb 21, 2019 at 02:44:14PM +1100, Alexey Kardashevskiy wrote: > The anon fd's ops releases the KVM reference in the release hook. > However we reference the KVM object after we create the fd so there is > small window when the release function can be called and > dereferenced the KVM object which potentially may free it. > > It is not a problem at the moment as the file is created and KVM is > referenced under the KVM lock and the release function obtains the same > lock before dereferencing the KVM (although the lock is not held when > calling kvm_put_kvm()) but it is a fragile against future changes. > > This references the KVM object before creating a file. > > Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxxxx> Thanks, applied to my kvm-ppc-next tree. Paul.
