# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1627586104 -7200
# Node ID 8a0234862ce6a44e8abc072f6e82481062a344f0
# Parent  183a7452d7194eca2216565bc78c15367cfaf49a
patch 8.2.3246: memory use after free

Commit: https://github.com/vim/vim/commit/77111e2bfc7316eb6b1e653386cef6441af806f8
Author: Bram Moolenaar <Bram@vim.org>
Date:   Thu Jul 29 21:11:30 2021 +0200

    patch 8.2.3246: memory use after free

    Problem:    Memory use after free.
    Solution:   When clearing a string option set the pointer to "empty_option".

diff --git a/src/option.c b/src/option.c
--- a/src/option.c
+++ b/src/option.c
@@ -807,7 +807,7 @@ free_all_options(void)
 	else if (options[i].var != VAR_WIN
 		&& (options[i].flags & P_STRING))
 	    // buffer-local option: free global value
-	    free_string_option(*(char_u **)options[i].var);
+	    clear_string_option((char_u **)options[i].var);
     }
 }
 #endif
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3246,
+/**/
     3245,
 /**/
     3244,