From 175850b03e1af251d705c1d04b2b9b3c1c06e48f Mon Sep 17 00:00:00 2001

From: Akira TAGOH <akira@tagoh.org>

Date: Thu, 17 Feb 2022 19:06:10 +0900

Subject: [PATCH] Fix SEGV issue in fribidi_remove_bidi_marks

Escape from fribidi_remove_bidi_marks() immediately if str is null.

This fixes https://github.com/fribidi/fribidi/issues/183

---

 lib/fribidi.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/fribidi.c b/lib/fribidi.c

index f5da0da..70bdab2 100644

--- a/lib/fribidi.c

+++ b/lib/fribidi.c

@@ -74,7 +74,7 @@ fribidi_remove_bidi_marks (

   fribidi_boolean status = false;

   if UNLIKELY

-    (len == 0)

+    (len == 0 || str == NULL)

     {

       status = true;

       goto out;