waf: return if we cannot create the TCP listener (#3882)

blotus · web-flow · commit 6b1ac26470a8 · 2025-09-11T15:18:40.000+02:00
diff --git a/pkg/acquisition/modules/appsec/appsec.go b/pkg/acquisition/modules/appsec/appsec.go
@@ -407,6 +407,7 @@ func (w *AppsecSource) listenAndServe(ctx context.Context, t *tomb.Tomb) error {
 		listener, err := net.Listen("tcp", url)
 		if err != nil {
 			serverError <- fmt.Errorf("listening on %s: %w", url, err)
+			return
 		}
 
 		w.logger.Infof("Appsec listening on %s", url)

Original file line number	Diff line number	Diff line change
`@@ -407,6 +407,7 @@ func (w AppsecSource) listenAndServe(ctx context.Context, t tomb.Tomb) error {`
`407`	`407`	`listener, err := net.Listen("tcp", url)`
`408`	`408`	`if err != nil {`
`409`	`409`	`serverError <- fmt.Errorf("listening on %s: %w", url, err)`
	`410`	`+ return`
`410`	`411`	`}`
`411`	`412`
`412`	`413`	`w.logger.Infof("Appsec listening on %s", url)`