From: Vinay Gannevaram <quic_vganneva@quicinc.com>
Date: Wed, 11 Oct 2023 11:02:23 +0000 (+0530)
Subject: Add NULL check for pmksa cache free_cb() callback
X-Git-Tag: hostap_2_11~947
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c86064716015af06e02dbe5d1d3cfcf88b7fa45b;p=thirdparty%2Fhostap.git

Add NULL check for pmksa cache free_cb() callback

free_cb can be NULL during the pmksa_cache_auth_init() from the modules
using libpasn.so. So check it explicitly before dereferencing.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
---

diff --git a/src/ap/pmksa_cache_auth.c b/src/ap/pmksa_cache_auth.c
index 32d291d1c..891c16b64 100644
--- a/src/ap/pmksa_cache_auth.c
+++ b/src/ap/pmksa_cache_auth.c
@@ -56,7 +56,9 @@ void pmksa_cache_free_entry(struct rsn_pmksa_cache *pmksa,
 	unsigned int hash;
 
 	pmksa->pmksa_count--;
-	pmksa->free_cb(entry, pmksa->ctx);
+
+	if (pmksa->free_cb)
+		pmksa->free_cb(entry, pmksa->ctx);
 
 	/* unlink from hash list */
 	hash = PMKID_HASH(entry->pmkid);