The virtual TPM driver must not access the hosts's event log,
otherwise we get crashes from that.
Signed-off-by: Stefan Berger <stef...@linux.vnet.ibm.com>
---
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
------------------------------------------------------------------------------
_______________________________________________
tpmdd-devel mailing list
tpmdd-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/tpmdd-devel
