--- src/modules/macosx/module-coreaudio-device.c.orig	2024-01-12 11:22:09.000000000 -0600
+++ src/modules/macosx/module-coreaudio-device.c	2024-02-09 10:23:22.000000000 -0600
@@ -44,6 +44,7 @@
 #include <pulsecore/thread.h>
 #include <pulsecore/thread-mq.h>
 #include <pulsecore/i18n.h>
+#include <pulsecore/namereg.h>
 
 #include <CoreAudio/CoreAudio.h>
 #include <CoreAudio/CoreAudioTypes.h>
@@ -454,7 +455,12 @@
         tmp = NULL;
     }
 
-    ca_sink->name = pa_strbuf_to_string_free(strbuf);
+    /* Clamp to PA_NAME_MAX and leave a "safety margin" for deduplication
+     * and other appended data. */
+    tmp = pa_strbuf_to_string_free(strbuf);
+    ca_sink->name = pa_xstrndup(tmp, PA_NAME_MAX - 20);
+    pa_xfree(tmp);
+    tmp = NULL;
 
     pa_log_debug("Stream name is >%s<", ca_sink->name);
 
@@ -588,7 +594,12 @@
         tmp = NULL;
     }
 
-    ca_source->name = pa_strbuf_to_string_free(strbuf);
+    /* Clamp to PA_NAME_MAX and leave a "safety margin" for deduplication
+     * and other appended data. */
+    tmp = pa_strbuf_to_string_free(strbuf);
+    ca_source->name = pa_xstrndup(tmp, PA_NAME_MAX - 20);
+    pa_xfree(tmp);
+    tmp = NULL;
 
     pa_log_debug("Stream name is >%s<", ca_source->name);