From: Marco Bettini <marco.bettini@open-xchange.com>
Date: Thu, 28 Aug 2025 15:09:56 +0000 (+0000)
Subject: [PATCH] acl: Fix crash when group ACLs are used, but user's acl_groups is empty
X-Git-Tag: archive/raspbian/1%2.4.1+dfsg1-6+rpi1+deb13u4^2~26
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=55c4342a52be40f7e5ee9f5748c90b2afed45abf;p=dovecot.git

[PATCH] acl: Fix crash when group ACLs are used, but user's acl_groups is empty

From 003bf9a6959714e0f696f0015c8c712e89962b9b Mon Sep 17 00:00:00 2001
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1129952


Gbp-Pq: Name acl-Fix-crash-when-group-ACLs-are-used-but-user-s-ac.patch
---

diff --git a/src/plugins/acl/acl-backend.c b/src/plugins/acl/acl-backend.c
index 2ad901c..cc08d70 100644
--- a/src/plugins/acl/acl-backend.c
+++ b/src/plugins/acl/acl-backend.c
@@ -155,7 +155,8 @@ bool acl_backend_user_name_equals(struct acl_backend *backend,
 bool acl_backend_user_is_in_group(struct acl_backend *backend,
 				  const char *group_name)
 {
-	return array_bsearch(&backend->set->acl_groups, group_name,
+	return array_not_empty(&backend->set->acl_groups) &&
+	       array_bsearch(&backend->set->acl_groups, group_name,
 			     search_strcmp) != NULL;
 }