From: Anton Khirnov <anton@khirnov.net>

Date: Fri, 16 Nov 2012 18:01:13 +0100

Subject: [PATCH] FvwmPager: be more careful with window labels.

Do not assume they contain properly encoded strings.

diff --git a/modules/FvwmPager/x_pager.c b/modules/FvwmPager/x_pager.c

index a0c3a6f..e56095c 100644

--- a/modules/FvwmPager/x_pager.c

+++ b/modules/FvwmPager/x_pager.c

@@ -2775,6 +2775,11 @@ static void label_window_wrap(PagerWindow *t)

         len   = FlocaleStringNumberOfBytes(FwindowFont, next);

         width = FlocaleTextWidth(FwindowFont, next, len);

+        if (end - next < len) {

+          fprintf(stderr, "%s: malformed window label\n", MyName);

+          return;

+        }

+

         if (width > t->pager_view_width - cur_width - 2*label_border && cur != next)

           break;