grub_tpm2_readpublic() and grub_tpm2_testparms() didn't check
authCommand when marshaling the input data buffer. Currently, there is
no caller using non-NULL authCommand. However, to avoid the potential
issue, the conditional check is added to insert authCommand into the
input buffer if necessary.
Also fix a few pointer checks.
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
041164d00e