input_chunk: reject ID fallback when label is provided but doesn't match

edsiper · edsiper · commit a1142c8f2900 · 2025-11-03T14:15:52.000-06:00
Signed-off-by: Eduardo Silva &lt;eduardo@chronosphere.io&gt;
diff --git a/src/flb_input_chunk.c b/src/flb_input_chunk.c
@@ -757,6 +757,9 @@ static struct flb_output_instance *input_chunk_find_output_reference(struct flb_
                 return o_ins;
             }
         }
+
+        /* If label was present but didn't match, reject ID-only fallback */
+        return NULL;
     }
 
     mk_list_foreach(head, &config->outputs) {

Original file line number	Diff line number	Diff line change
`@@ -757,6 +757,9 @@ static struct flb_output_instance *input_chunk_find_output_reference(struct flb_`
`757`	`757`	`return o_ins;`
`758`	`758`	`}`
`759`	`759`	`}`
	`760`	`+`
	`761`	`+ /* If label was present but didn't match, reject ID-only fallback */`
	`762`	`+ return NULL;`
`760`	`763`	`}`
`761`	`764`
`762`	`765`	`mk_list_foreach(head, &config->outputs) {`