From: Po Lu <luangruo@yahoo.com>
Date: Sat, 13 Nov 2021 05:02:09 +0000 (+0800)
Subject: Prevent NULL-pointer dereference on xwidget callback error
X-Git-Tag: emacs-29.0.90~3668^2~1
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=a5008352c43cda13b0a35547ee91f0c889d71d06;p=emacs.git

Prevent NULL-pointer dereference on xwidget callback error

* src/xwidget.c (webkit_javascript_finished_cb): Check if
`error' is NULL before freeing it.
---

diff --git a/src/xwidget.c b/src/xwidget.c
index fad07efb294..e5a5d9008d5 100644
--- a/src/xwidget.c
+++ b/src/xwidget.c
@@ -1363,8 +1363,8 @@ webkit_javascript_finished_cb (GObject      *webview,
 
   if (!js_result)
     {
-      g_warning ("Error running javascript: %s", error->message);
-      g_error_free (error);
+      if (error)
+	g_error_free (error);
       return;
     }