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-rw-r--r--MdeModulePkg/Library/UefiBootManagerLib/BmPerformance.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmPerformance.c b/MdeModulePkg/Library/UefiBootManagerLib/BmPerformance.c
index dd937a7396..7b13ec663c 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmPerformance.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmPerformance.c
@@ -320,7 +320,7 @@ BmWriteBootToOsPerformanceData (
ZeroMem (&mBmPerfData, sizeof (PERF_DATA));
- AsciiStrCpyS (mBmPerfData.Token, PERF_TOKEN_SIZE, Token);
+ AsciiStrnCpyS (mBmPerfData.Token, PERF_TOKEN_SIZE, Token, PERF_TOKEN_LENGTH);
if (StartTicker == 1) {
StartTicker = StartValue;
}