From: Howard Chu <hyc@openldap.org>
Date: Thu, 16 Oct 2025 15:49:53 +0000 (+0100)
Subject: ITS#10400 libldap: fix NULL deref in ldap_parse_result()
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=44815be4dab1fc058c5fad6df20b8f2283a9ebc1;p=thirdparty%2Fopenldap.git

ITS#10400 libldap: fix NULL deref in ldap_parse_result()

Broken by patch for ITS#10229.
---

diff --git a/libraries/libldap/error.c b/libraries/libldap/error.c
index bb38688721..9ca2af9c5b 100644
--- a/libraries/libldap/error.c
+++ b/libraries/libldap/error.c
@@ -261,7 +261,7 @@ ldap_parse_result(
 	LDAP_MUTEX_LOCK( &ld->ld_res_mutex );
 	/* Find the result, last msg in chain... */
 	lm = r->lm_chain_tail;
-	if ( r->lm_msgid != lm->lm_msgid ) {
+	if ( lm != NULL && r->lm_msgid != lm->lm_msgid ) {
 		/*
 		 * ITS#10229: Returned with LDAP_MSG_ALL+LDAP_MSG_RECEIVED. People who
 		 * do that aren't expected to call ldap_parse_result not least because