initial buildroot for linux 5.15

package/sylpheed/0001-harden-link-checker-before-accepting-click.patch

@@ -0,0 +1,37 @@
+From ac286a71ed78429e16c612161251b9ea90ccd431 Mon Sep 17 00:00:00 2001
+From: Paul <paul@claws-mail.org>
+Date: Sun, 23 May 2021 12:16:40 +0100
+Subject: [PATCH] harden link checker before accepting click
+
+[Retrieved from:
+https://git.claws-mail.org/?p=claws.git;a=commit;h=ac286a71ed78429e16c612161251b9ea90ccd431]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ src/textview.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/textview.c b/src/textview.c
+index 62ad46eaf..3cdf5d911 100644
+--- a/src/textview.c
++++ b/src/textview.c
+@@ -2885,7 +2885,7 @@ gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
+ 	gboolean retval = TRUE;
+ 
+ 	if (is_uri_string(uri->uri) == FALSE)
+-		return TRUE;
++		return FALSE;
+ 
+ 	visible_str = textview_get_visible_uri(textview, uri);
+ 	if (visible_str == NULL)
+@@ -2922,6 +2922,8 @@ gboolean textview_uri_security_check(TextView *textview, ClickableText *uri)
+ 		if (aval == G_ALERTALTERNATE)
+ 			retval = TRUE;
+ 	}
++	if (strlen(uri->uri) > get_uri_len(uri->uri))
++		retval = FALSE;
+ 
+ 	g_free(visible_str);
+ 
+-- 
+2.25.1
+