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From: "Jeff Brasen" <jbrasen@nvidia.com>
To: <devel@edk2.groups.io>
Cc: <dandan.bi@intel.com>, <liming.gao@intel.com>,
	Jeff Brasen <jbrasen@nvidia.com>
Subject: [PATCH] MdeModulePkg/DxeCorePerformanceLib: Switch to UnicodeStrnToAsciiStrS
Date: Mon, 1 Jun 2020 15:12:37 -0600	[thread overview]
Message-ID: <9254b0b3c07d70dffc45aa919658ee32f2f54874.1591044879.git.jbrasen@nvidia.com> (raw)

UnicodeStrToAsciiStrS requires that the source string is shorter than
the destination buffer and will ASSERT if this is not true. Switch to
UnicodeStrnToAsciiStrS as there are cases where the source string is
longer than the buffer allocated for the device path.

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
---
 .../Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c b/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
index f500e20b32..89ae6fb964 100644
--- a/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
+++ b/MdeModulePkg/Library/DxeCorePerformanceLib/DxeCorePerformanceLib.c
@@ -879,7 +879,7 @@ GetDeviceInfoFromHandleAndUpdateLength (
         AsciiStringPtr = ComponentNameString;
       }
 
-      UnicodeStrToAsciiStrS(StringPtr, AsciiStringPtr, DevicePathStringSize);
+      UnicodeStrnToAsciiStrS(StringPtr, DevicePathStringSize - 1, AsciiStringPtr, DevicePathStringSize, &DevicePathStringSize);
       *Length += (UINT8)DevicePathStringSize;
       return EFI_SUCCESS;
     }
-- 
2.17.1


             reply	other threads:[~2020-06-01 21:12 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01 21:12 Jeff Brasen [this message]
2020-06-10  6:00 ` [edk2-devel] [PATCH] MdeModulePkg/DxeCorePerformanceLib: Switch to UnicodeStrnToAsciiStrS Dandan Bi

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