diff options
| author | Star Zeng <star.zeng@intel.com> | 2016-06-12 12:45:09 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2016-07-06 16:48:30 +0800 |
| commit | b34cf5efe3482ed7093fb7927019faba44c4741f (patch) | |
| tree | b50a198fe935aa5d2af80148e5bfeeda76f96ec7 /MdeModulePkg/Library | |
| parent | 4b821a24c3c854e3cf43241a4663bd5ae9e47511 (diff) | |
| download | edk2-platforms-b34cf5efe3482ed7093fb7927019faba44c4741f.tar.xz | |
MdeModulePkg DxeS3BootScriptLib: Check (mSmst != NULL) before freeing SMRAM
There is static scan tool reports BootScriptSave.c:628:'mSmst' is
explicitly dereferenced.
The patch is to check (mSmst != NULL) before freeing SMRAM at
BootScriptSave.c:628.
Cc: Shumin Qiu <shumin.qiu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Shumin Qiu <shumin.qiu@intel.com>
(cherry picked from commit d6f38e374ece00f1f8176007c9d3e8eff1f2308f)
Diffstat (limited to 'MdeModulePkg/Library')
| -rw-r--r-- | MdeModulePkg/Library/PiDxeS3BootScriptLib/BootScriptSave.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/MdeModulePkg/Library/PiDxeS3BootScriptLib/BootScriptSave.c b/MdeModulePkg/Library/PiDxeS3BootScriptLib/BootScriptSave.c index f6de986e08..0ff73211ac 100644 --- a/MdeModulePkg/Library/PiDxeS3BootScriptLib/BootScriptSave.c +++ b/MdeModulePkg/Library/PiDxeS3BootScriptLib/BootScriptSave.c @@ -624,7 +624,7 @@ S3BootScriptLibDeinitialize ( Status = PcdSet64S (PcdS3BootScriptTablePrivateDataPtr, 0);
ASSERT_EFI_ERROR (Status);
}
- if (mS3BootScriptTableSmmAllocated) {
+ if ((mSmst != NULL) && mS3BootScriptTableSmmAllocated) {
Status = mSmst->SmmFreePool (mS3BootScriptTableSmmPtr);
ASSERT_EFI_ERROR (Status);
Status = PcdSet64S (PcdS3BootScriptTablePrivateSmmDataPtr, 0);
|