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There is a 'malloc' call in vcpu_save_state function, which can be unsuccessful. This patch will add the malloc failure checking to avoid possible null dereference and give more information about test fail reasons. Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com> Link: https://lore.kernel.org/r/20230322144528.704077-1-ivan.orlov0322@gmail.com Signed-off-by: Sean Christopherson <seanjc@google.com>