[ Upstream commit 6342969daf ]
TPM2_Unseal[1] expects the handle of a loaded data object, and not the
handle of the parent key. But the tpm2_unseal_cmd provides the parent
keyhandle instead of blob_handle for the session HMAC calculation. This
causes unseal to fail.
Fix this by passing blob_handle to tpm_buf_append_name().
References:
[1] trustedcomputinggroup.org/wp-content/uploads/
Trusted-Platform-Module-2.0-Library-Part-3-Version-184_pub.pdf
Fixes: 6e9722e9a7 ("tpm2-sessions: Fix out of range indexing in name_size")
Signed-off-by: Srish Srinivasan <ssrish@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
c9aeb168e8