On Wed, Nov 14, 2018 at 04:31:07PM +0100, Roberto Sassu wrote:

This patch protects against data corruption that could happen in the bus,
by checking that that the digest size returned by the TPM during a PCR read
matches the size of the algorithm passed to tpm2_pcr_read().

This check is performed after information about the PCR banks has been
retrieved.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Jarkko Sakkinen <redacted>
Cc: stable@vger.kernel.org

Missing fixes tag.

/Jarkko