Eric Pouech : riched20: Don't write past end of buffer.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5cbe3a6cb186cffed20e3fea5f88abd0880d3914
URL:    https://gitlab.winehq.org/wine/wine/-/commit/5cbe3a6cb186cffed20e3fea5f88abd...

Author: Eric Pouech <epouech(a)codeweavers.com>
Date:   Wed Dec 13 15:12:38 2023 +0100

riched20: Don't write past end of buffer.

Signed-off-by: Eric Pouech <epouech(a)codeweavers.com>

---

 dlls/riched20/editor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/riched20/editor.c b/dlls/riched20/editor.c
index 4b246dda9c5..ff05ba60333 100644
--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -4309,7 +4309,7 @@ int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
     str = get_text( run, 0 );
   }
   /* append '\r' to the last paragraph. */
-  if (run == para_end_run( para_prev( editor_end_para( editor ) ) ) && bEOP)
+  if (run == para_end_run( para_prev( editor_end_para( editor ) ) ) && bEOP && buflen)
   {
     *buffer = '\r';
     buffer ++;