[coreboot-gerrit] Change in coreboot[master]: security/tpm: Check for NULL pointer
Furquan Shaikh (Code Review)
gerrit at coreboot.org
Tue Aug 7 19:03:37 CEST 2018
Furquan Shaikh has uploaded this change for review. ( https://review.coreboot.org/27933
Change subject: security/tpm: Check for NULL pointer
......................................................................
security/tpm: Check for NULL pointer
Change bce49c2 missed checking for NULL pointer before accessing the
tcpa_table returned by tcpa_log_init. This change fixes the boot hang
observed on octopus by ensuring pointer is checked for NULL before
using it.
BUG=b:111403731
TEST=Verified that octopus boots up fine.
Change-Id: I2e46197065f8db1dc028a85551546263e60d46b2
Signed-off-by: Furquan Shaikh <furquan at google.com>
---
M src/security/tpm/tspi/log.c
1 file changed, 4 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/27933/1
diff --git a/src/security/tpm/tspi/log.c b/src/security/tpm/tspi/log.c
index 0a6655a..17f6f1f 100644
--- a/src/security/tpm/tspi/log.c
+++ b/src/security/tpm/tspi/log.c
@@ -57,6 +57,10 @@
struct tcpa_entry *tce;
tclt = tcpa_log_init();
+
+ if (!tclt)
+ return;
+
if (tclt->num_entries == tclt->max_entries) {
printk(BIOS_WARNING, "ERROR: TCPA log table is full\n");
return;
--
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I2e46197065f8db1dc028a85551546263e60d46b2
Gerrit-Change-Number: 27933
Gerrit-PatchSet: 1
Gerrit-Owner: Furquan Shaikh <furquan at google.com>
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