1.enhanced security check.

2.remove un-necessary ASSERT. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7522 6f19259b-4bc3-4df7-8a09-765794883524
2009-02-13 06:39:44 +00:00
parent 8f0dd97eab
commit 7174e04c2b
3 changed files with 4 additions and 6 deletions
--- a/MdeModulePkg/Library/UefiIfrSupportLib/UefiIfrForm.c
+++ b/MdeModulePkg/Library/UefiIfrSupportLib/UefiIfrForm.c
@@ -1009,7 +1009,7 @@ ConstructConfigHdr (
  // | 5  |   32   |  6  |  NameStrLen*4 |  6  |    DevicePathStrLen    | 1 |
  //
  BufferSize = (5 + 32 + 6 + NameStrLen * 4 + 6 + DevicePathSize * 2 + 1) * sizeof (CHAR16);
-  if (*StrBufferLen < BufferSize) {
+  if ((*StrBufferLen == 0) || *StrBufferLen < BufferSize) {
    *StrBufferLen = BufferSize;
    return EFI_BUFFER_TOO_SMALL;
  }