Re: [PATCH v3 5/5] tpm: ensure that output of PCR read contains the correct digest size

[Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>]

On Tue, 30 Oct 2018, Roberto Sassu wrote:
> This patch ensures that the digest size returned by the TPM during a PCR
> read matches the size of the algorithm passed as argument to
> tpm2_pcr_read(). The check is performed after information about the PCR
> banks has been retrieved.
>
> Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>

What is the scenarion when this can happen (should be explained in
the commit message)?

/Jarkko