On Wed, Nov 16, 2016 at 09:24:05AM -0500, Stefan Berger wrote:
> The virtual TPM driver must not access the hosts's event log,
> otherwise we get crashes from that.
>
> Signed-off-by: Stefan Berger <[email protected]>
Can you give me a "Fixes" line (no need to send a new patch)?
> ---
> drivers/char/tpm/tpm_eventlog.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
> index fb603a7..e0abf40 100644
> --- a/drivers/char/tpm/tpm_eventlog.c
> +++ b/drivers/char/tpm/tpm_eventlog.c
> @@ -369,6 +369,9 @@ static int tpm_read_log(struct tpm_chip *chip)
> {
> int rc;
>
> + if (chip->flags & TPM_CHIP_FLAG_VIRTUAL)
> + return -EFAULT;
> +
> if (chip->log.bios_event_log != NULL) {
> dev_dbg(&chip->dev,
> "%s: ERROR - event log already initialized\n",
> --
> 2.4.3
>
/Jarkko
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