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tpm2: Add MUST_BE to ensure unions' largest TPM2Bs are marshalled

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Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
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Stefan Berger 2024-01-11 11:43:24 -05:00 committed by Stefan Berger
parent 1375b8a53b
commit 6063c0fbb2
1 changed files with 2 additions and 0 deletions
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src/tpm2/NVMarshal.c
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@ -2654,7 +2654,9 @@ SESSION_Marshal(SESSION *data, BYTE **buffer, INT32 *size)
written += TPM2B_AUTH_Marshal(&data->sessionKey, buffer, size);
written += TPM2B_NONCE_Marshal(&data->nonceTPM, buffer, size);
// TPM2B_NAME or TPM2B_DIGEST could be used for marshalling
MUST_BE(sizeof(data->u1.boundEntity) == sizeof(data->u1));
written += TPM2B_NAME_Marshal(&data->u1.boundEntity, buffer, size);
MUST_BE(sizeof(data->u2.auditDigest) == sizeof(data->u2));
written += TPM2B_DIGEST_Marshal(&data->u2.auditDigest, buffer, size);
written += BLOCK_SKIP_WRITE_PUSH(TRUE, buffer, size);