x86/xen: Add some null pointer checking to smp.c
JIRA: https://issues.redhat.com/browse/RHEL-33260 CVE: CVE-2024-26908
Signed-off-by: Vitaly Kuznetsov vkuznets@redhat.com
JIRA: https://issues.redhat.com/browse/RHEL-33260 CVE: CVE-2024-26908
Signed-off-by: Vitaly Kuznetsov vkuznets@redhat.com