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/UefiShellNetwork1CommandsLib/Ping.c
+++ b/ShellPkg/Library/UefiShellNetwork1CommandsLib/Ping.c
@ -883,7 +883,7 @@ PingCreateIpInstance (
                  &HandleNum,
                  &HandleBuffer
                  );
-  if (EFI_ERROR (Status) || (HandleNum == 0)) {
+  if (EFI_ERROR (Status) || (HandleNum == 0) || (HandleBuffer == NULL)) {
    return EFI_ABORTED;
  }
  //