[Bf-blender-cvs] [4a98e337857] master: Fix heap buffer overflow in tabs to spaces

[Sergey Sharybin]

Commit: 4a98e3378574404615e643ed640ce84dc41e32be
Author: Sergey Sharybin
Date:   Wed May 8 14:36:35 2019 +0200
Branches: master
https://developer.blender.org/rB4a98e3378574404615e643ed640ce84dc41e32be

Fix heap buffer overflow in tabs to spaces

Need to count string terminator.

===================================================================

M	source/blender/editors/space_text/text_ops.c

===================================================================

diff --git a/source/blender/editors/space_text/text_ops.c b/source/blender/editors/space_text/text_ops.c
index d0809ec33fc..a3a438c3220 100644
--- a/source/blender/editors/space_text/text_ops.c
+++ b/source/blender/editors/space_text/text_ops.c
@@ -101,7 +101,7 @@ static char *buf_tabs_to_spaces(const char *in_buf, const int tab_size)
   }
 
   /* Allocate output before with extra space for expanded tabs. */
-  const int out_size = strlen(in_buf) + num_tabs * (tab_size - 1);
+  const int out_size = strlen(in_buf) + num_tabs * (tab_size - 1) + 1;
   char *out_buf = MEM_mallocN(out_size * sizeof(char), __func__);
 
   /* Fill output buffer. */