From: Stephan Bosch <stephan.bosch@open-xchange.com>
Date: Wed, 20 Aug 2025 05:27:55 +0000 (+0200)
Subject: lib-sasl: sasl-server-mech-gssapi - Allow krb5_keytab setting to be NULL
X-Git-Tag: 2.4.2~131
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bced32afa5b1578d1624503c0874a93085db0b6d;p=thirdparty%2Fdovecot%2Fcore.git

lib-sasl: sasl-server-mech-gssapi - Allow krb5_keytab setting to be NULL
---

diff --git a/src/lib-sasl/sasl-server-mech-gssapi.c b/src/lib-sasl/sasl-server-mech-gssapi.c
index 728c62bbff..105b0b8472 100644
--- a/src/lib-sasl/sasl-server-mech-gssapi.c
+++ b/src/lib-sasl/sasl-server-mech-gssapi.c
@@ -719,7 +719,7 @@ mech_gssapi_register(struct sasl_server_instance *sinst,
 
 	const char *path = set->krb5_keytab;
 
-	if (*path != '\0') {
+	if (path != NULL && *path != '\0') {
 		/* Environment may be used by Kerberos 5 library directly */
 		env_put("KRB5_KTNAME", path);
 #ifdef HAVE_GSSKRB5_REGISTER_ACCEPTOR_IDENTITY