sbd/SOURCES/0018-Fix-sbd-pacemaker-bail-out-of-status-earlier.patch

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2019-09-10 10:39:03 +00:00
From 79b778debfee5b4ab2d099b2bfc7385f45597f70 Mon Sep 17 00:00:00 2001
From: Klaus Wenninger <klaus.wenninger@aon.at>
Date: Tue, 26 Mar 2019 11:17:45 +0100
Subject: [PATCH] Fix: sbd-pacemaker: bail out of status earlier
Prevents possible subsequent null-pointer access and avoids
unnecessary search for node.
---
src/sbd-pacemaker.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/src/sbd-pacemaker.c b/src/sbd-pacemaker.c
index c69fc55..9a8b95f 100644
--- a/src/sbd-pacemaker.c
+++ b/src/sbd-pacemaker.c
@@ -276,7 +276,7 @@ compute_status(pe_working_set_t * data_set)
static int updates = 0;
static int ever_had_quorum = FALSE;
- node_t *node = pe_find_node(data_set->nodes, local_uname);
+ node_t *node = NULL;
updates++;
@@ -286,11 +286,15 @@ compute_status(pe_working_set_t * data_set)
return;
}
+ node = pe_find_node(data_set->nodes, local_uname);
- if (node == NULL) {
+ if ((node == NULL) || (node->details == NULL)) {
set_servant_health(pcmk_health_unknown, LOG_WARNING, "Node state: %s is UNKNOWN", local_uname);
+ notify_parent();
+ return;
+ }
- } else if (node->details->online == FALSE) {
+ if (node->details->online == FALSE) {
set_servant_health(pcmk_health_unknown, LOG_WARNING, "Node state: OFFLINE");
} else if (node->details->unclean) {
--
1.8.3.1