[cwittich] 39402: shell32: Fixed potential buffer overwrite in execute_from_key (Coverity). Marcus Meissner <marcus at jet.franken.de>

Author: cwittich
Date: Thu Feb  5 02:55:28 2009
New Revision: 39402
URL: http://svn.reactos.org/svn/reactos?rev=39402&view=rev
Log:
shell32: Fixed potential buffer overwrite in execute_from_key (Coverity).
Marcus Meissner <marcus at jet.franken.de>
Modified:
    trunk/reactos/dll/win32/shell32/shlexec.c
Modified: trunk/reactos/dll/win32/shell32/shlexec.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/shell32/shlexec.…
==============================================================================
--- trunk/reactos/dll/win32/shell32/shlexec.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/shell32/shlexec.c [iso-8859-1] Thu Feb  5 02:55:28 2009
@@ -908,6 +908,8 @@
         /* Is there a replace() function anywhere? */
         cmdlen /= sizeof(WCHAR);
+        if (cmdlen >= sizeof(cmd)/sizeof(WCHAR))
+            cmdlen = sizeof(cmd)/sizeof(WCHAR)-1;
         cmd[cmdlen] = '\0';
         SHELL_ArgifyW(param, sizeof(param)/sizeof(WCHAR), cmd, lpFile, psei->lpIDList,
szCommandline, &resultLen);
         if (resultLen > sizeof(param)/sizeof(WCHAR))