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From: Star Zeng <star.zeng@intel.com>
To: edk2-devel@lists.01.org
Cc: Star Zeng <star.zeng@intel.com>, Hao Wu <hao.a.wu@intel.com>,
	Jiewen Yao <jiewen.yao@intel.com>
Subject: [PATCH] MdeModulePkg PiSmmCore: Ensure SxDispatch not NULL before dereferenced
Date: Wed, 13 Dec 2017 11:27:56 +0800	[thread overview]
Message-ID: <1513135676-16632-1-git-send-email-star.zeng@intel.com> (raw)

Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
---
 MdeModulePkg/Core/PiSmmCore/PiSmmCore.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
index 1ccb9c7787ad..f136b5d5693b 100644
--- a/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
+++ b/MdeModulePkg/Core/PiSmmCore/PiSmmCore.c
@@ -321,7 +321,7 @@ SmmReadyToBootHandler (
              NULL,
              (VOID **)&SxDispatch
              );
-  if (!EFI_ERROR (Status)) {
+  if (!EFI_ERROR (Status) && (SxDispatch != NULL)) {
     //
     // Register a S3 entry callback function to
     // determine if it will be during S3 resume.
-- 
2.7.0.windows.1



             reply	other threads:[~2017-12-13  3:23 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-13  3:27 Star Zeng [this message]
2017-12-13  5:09 ` [PATCH] MdeModulePkg PiSmmCore: Ensure SxDispatch not NULL before dereferenced Wu, Hao A

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