Set the free buffer pointer to NULL to avoid later free again.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15232 6f19259b-4bc3-4df7-8a09-765794883524
Add more check for PE COFF SizeOfHeader field.

Signed-off by: jiewen yao <jiewen.yao@intel.com>
reviewed by: eric dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15233 6f19259b-4bc3-4df7-8a09-765794883524
Keep highlight on the current highlight menu if form auto exit, not exit by user input.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15234 6f19259b-4bc3-4df7-8a09-765794883524