Make sure that the new locality passed to tpm_tis_prep_abort()
is valid. This is merely a precaution since none of the current
callers passes an invalid locality number into this function.
Add a comment to aborting_locty that it may be any locality, including
TPM_TIS_NO_LOCALITY.
Signed-off-by: Stefan Berger <stef...@linux.ibm.com>
---
hw/tpm/tpm_tis.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index 176d424ed9..6e78efa9a3 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -263,7 +263,10 @@ static void tpm_tis_prep_abort(TPMState *s, uint8_t locty,
uint8_t newlocty)
{
uint8_t busy_locty;
- s->aborting_locty = locty;
+ if (!TPM_TIS_IS_VALID_LOCTY(newlocty))
+ return
+
+ s->aborting_locty = locty; /* may also be TPM_TIS_NO_LOCALITY */
s->next_locty = newlocty; /* locality after successful abort */
/*
--
2.17.1
