add security check.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8680 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-29 09:19:25 +00:00
parent f2a064736d
commit 894d038a8d
22 changed files with 90 additions and 40 deletions
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.c
+++ b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.c
@@ -250,9 +250,10 @@ CvtNum (
 {
  UINTN Remainder;

-  while (Length-- > 0) {
+  while (Length > 0) {
    Remainder = Number % 10;
    Number /= 10;
+    Length--;
    Buffer[Length] = (UINT8) ('0' + Remainder);
  }
 }