On 11/16/2018 2:41 PM, Jarkko Sakkinen wrote:
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@xxxxxxxxxx>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Missing fixes tag.
Before this patch set, tpm2_pcr_extend() always copied 20 bytes from the
output sent by the TPM.
Roberto
/Jarkko
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