pointer verification (not NULL) and buffer overrun fixes.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11459 6f19259b-4bc3-4df7-8a09-765794883524
2011-03-30 19:33:03 +00:00
parent 6b825919f1
commit 33c031ee20
21 changed files with 338 additions and 185 deletions
--- a/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/HexEdit.c
+++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/HexEdit.c
@ -110,7 +110,7 @@ ShellCommandRunHexEdit (
        ShellStatus = SHELL_INVALID_PARAMETER;
      } else {
        Name      = ShellCommandLineGetRawValue(Package, 1);
-        if (!IsValidFileName(Name)) {
+        if (Name == NULL || !IsValidFileName(Name)) {
          ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Name);
          ShellStatus = SHELL_INVALID_PARAMETER;
        } else {