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From f491d9d5a7ed554fed985de356bb085fdec3421c Mon Sep 17 00:00:00 2001
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From: Ken Gaillot <kgaillot@redhat.com>
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Date: Tue, 7 Dec 2021 09:01:00 -0600
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Subject: [PATCH] Fix: fencer: avoid memory leak when broadcasting history
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differences
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Regression introduced in 2.1.0 by dbc27b2
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---
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daemons/fenced/fenced_history.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/daemons/fenced/fenced_history.c b/daemons/fenced/fenced_history.c
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index bc159383c..a9c57dc86 100644
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--- a/daemons/fenced/fenced_history.c
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+++ b/daemons/fenced/fenced_history.c
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@@ -484,8 +484,6 @@ stonith_fence_history(xmlNode *msg, xmlNode **output,
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!pcmk__str_eq(remote_peer, stonith_our_uname, pcmk__str_casei)) {
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xmlNode *history = get_xpath_object("//" F_STONITH_HISTORY_LIST,
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msg, LOG_NEVER);
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- GHashTable *received_history =
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- history?stonith_xml_history_to_list(history):NULL;
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/* either a broadcast created directly upon stonith-API request
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* or a diff as response to such a thing
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@@ -497,6 +495,11 @@ stonith_fence_history(xmlNode *msg, xmlNode **output,
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if (!history ||
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!crm_is_true(crm_element_value(history,
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F_STONITH_DIFFERENTIAL))) {
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+ GHashTable *received_history = NULL;
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+
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+ if (history != NULL) {
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+ received_history = stonith_xml_history_to_list(history);
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+ }
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out_history =
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stonith_local_history_diff_and_merge(received_history, TRUE, NULL);
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if (out_history) {
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--
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2.27.0
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