diff --git a/lib/common/tests/procfs/pcmk__procfs_has_pids_false_test.c b/lib/common/tests/procfs/pcmk__procfs_has_pids_false_test.c
index 4601aac9df..9fc73bc5df 100644
--- a/lib/common/tests/procfs/pcmk__procfs_has_pids_false_test.c
+++ b/lib/common/tests/procfs/pcmk__procfs_has_pids_false_test.c
@@ -1,42 +1,40 @@
 /*
- * Copyright 2022 the Pacemaker project contributors
+ * Copyright 2022-2025 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU General Public License version 2
  * or later (GPLv2+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 
 #include <crm/common/unittest_internal.h>
 
 #include "mock_private.h"
 
 #include <unistd.h>
 #include <string.h>
 #include <errno.h>
 
-
 static void
 no_pids(void **state)
 {
-    char path[PATH_MAX];
-
-    snprintf(path, PATH_MAX, "/proc/%u/exe", getpid());
+    char *exe_path = crm_strdup_printf("/proc/%lld/exe", (long long) getpid());
 
     // Set readlink() errno and link contents (for /proc/PID/exe)
     pcmk__mock_readlink = true;
 
-    expect_string(__wrap_readlink, path, path);
+    expect_string(__wrap_readlink, path, exe_path);
     expect_any(__wrap_readlink, buf);
     expect_value(__wrap_readlink, bufsize, PATH_MAX - 1);
     will_return(__wrap_readlink, ENOENT);
     will_return(__wrap_readlink, NULL);
 
     assert_false(pcmk__procfs_has_pids());
 
     pcmk__mock_readlink = false;
+    free(exe_path);
 }
 
 PCMK__UNIT_TEST(NULL, NULL, cmocka_unit_test(no_pids))
diff --git a/lib/common/tests/procfs/pcmk__procfs_has_pids_true_test.c b/lib/common/tests/procfs/pcmk__procfs_has_pids_true_test.c
index 758e3b905c..65a4a320bd 100644
--- a/lib/common/tests/procfs/pcmk__procfs_has_pids_true_test.c
+++ b/lib/common/tests/procfs/pcmk__procfs_has_pids_true_test.c
@@ -1,41 +1,40 @@
 /*
- * Copyright 2022 the Pacemaker project contributors
+ * Copyright 2022-2025 the Pacemaker project contributors
  *
  * The version control history for this file may have further details.
  *
  * This source code is licensed under the GNU General Public License version 2
  * or later (GPLv2+) WITHOUT ANY WARRANTY.
  */
 
 #include <crm_internal.h>
 
 #include <crm/common/unittest_internal.h>
 
 #include "mock_private.h"
 
 #include <unistd.h>
 #include <string.h>
 #include <errno.h>
 
 static void
 has_pids(void **state)
 {
-    char path[PATH_MAX];
-
-    snprintf(path, PATH_MAX, "/proc/%u/exe", getpid());
+    char *exe_path = crm_strdup_printf("/proc/%lld/exe", (long long) getpid());
 
     // Set readlink() errno and link contents (for /proc/PID/exe)
     pcmk__mock_readlink = true;
 
-    expect_string(__wrap_readlink, path, path);
+    expect_string(__wrap_readlink, path, exe_path);
     expect_any(__wrap_readlink, buf);
     expect_value(__wrap_readlink, bufsize, PATH_MAX - 1);
     will_return(__wrap_readlink, 0);
     will_return(__wrap_readlink, "/ok");
 
     assert_true(pcmk__procfs_has_pids());
 
     pcmk__mock_readlink = false;
+    free(exe_path);
 }
 
 PCMK__UNIT_TEST(NULL, NULL, cmocka_unit_test(has_pids))