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[PATCH 12/14] tpm2: pack the missing authorization command for TPM2_PCR_

From: Gary Lin
Subject: [PATCH 12/14] tpm2: pack the missing authorization command for TPM2_PCR_Read
Date: Wed, 22 Feb 2023 15:00:52 +0800

When the caller of TPM2_PCR_Read() passes a valid authorization command,
we should pack it into the 'in' buffer before sending the command.

Signed-off-by: Gary Lin <>
 grub-core/tpm2/tpm2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/grub-core/tpm2/tpm2.c b/grub-core/tpm2/tpm2.c
index ad9d52cd4..470fe7fc1 100644
--- a/grub-core/tpm2/tpm2.c
+++ b/grub-core/tpm2/tpm2.c
@@ -535,6 +535,8 @@ TPM2_PCR_Read (const TPMS_AUTH_COMMAND *authCommand,
   /* Marshal */
   grub_tpm2_buffer_init (&in);
+  if (authCommand)
+    grub_tpm2_mu_TPMS_AUTH_COMMAND_Marshal (&in, authCommand);
   grub_tpm2_mu_TPML_PCR_SELECTION_Marshal (&in, pcrSelectionIn);
   if (in.error)
     return TPM_RC_FAILURE;

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