Re: [libvirt] PATCH: Switch openvz driver to domain APIs

"Daniel P. Berrange" <berrange@redhat.com> wrote:

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static int openvzDomainShutdown(virDomainPtr dom) { struct openvz_driver *driver = (struct openvz_driver *)dom->conn->privateData; - struct openvz_vm *vm = openvzFindVMByUUID(driver, dom->uuid); - const char *prog[] = {VZCTL, "--quiet", "stop", vm->vmdef->name, NULL}; + virDomainObjPtr vm = virDomainFindByUUID(driver->domains, dom->uuid); + const char *prog[] = {VZCTL, "--quiet", "stop", vm->def->name, NULL};

I know it's nothing new, but the above use of "vm" can dereference NULL.

Every 'virDomainPtr' object is /required/ to have a non-NULL 'def' field. Only the 'newDef' field is alllowed to be NULL.

Yes, but "vm" itself will be NULL if virDomainFindByUUID fails.