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| author | Hao Wu <hao.a.wu@intel.com> | 2017-02-27 09:33:00 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2017-02-28 08:57:52 +0800 |
| commit | 24c6962d0988132c0a40dcc15f824dac02ef74b5 (patch) | |
| tree | 91755b421d6155d915d9c7fb73f64f4aabb65254 /ShellPkg | |
| parent | 9555c09717ee0b1ed4619942257c7b64aeb57f6e (diff) | |
| download | edk2-24c6962d0988132c0a40dcc15f824dac02ef74b5.tar.gz edk2-24c6962d0988132c0a40dcc15f824dac02ef74b5.tar.bz2 edk2-24c6962d0988132c0a40dcc15f824dac02ef74b5.zip | |
ShellPkg/UefiDpLib: Add check to avoid NULL pointer deference
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Diffstat (limited to 'ShellPkg')
| -rw-r--r-- | ShellPkg/Library/UefiDpLib/Dp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ShellPkg/Library/UefiDpLib/Dp.c b/ShellPkg/Library/UefiDpLib/Dp.c index 33f69a0c14..35ead751be 100644 --- a/ShellPkg/Library/UefiDpLib/Dp.c +++ b/ShellPkg/Library/UefiDpLib/Dp.c @@ -272,7 +272,7 @@ ShellCommandRunDp ( // EndCount = Value counter counts to before it needs to be reset
//
Status = EfiGetSystemConfigurationTable (&gPerformanceProtocolGuid, (VOID **) &PerformanceProperty);
- if (EFI_ERROR (Status)) {
+ if (EFI_ERROR (Status) || (PerformanceProperty == NULL)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_PERF_PROPERTY_NOT_FOUND), gDpHiiHandle);
goto Done;
}
|