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-rw-r--r--MdePkg/Library/BaseLib/String.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/MdePkg/Library/BaseLib/String.c b/MdePkg/Library/BaseLib/String.c
index e7fe513..cb90774 100644
--- a/MdePkg/Library/BaseLib/String.c
+++ b/MdePkg/Library/BaseLib/String.c
@@ -1262,7 +1262,7 @@ AsciiStriCmp (
UpperFirstString = InternalBaseLibAsciiToUpper (*FirstString);
UpperSecondString = InternalBaseLibAsciiToUpper (*SecondString);
- while ((*FirstString != '\0') && (UpperFirstString == UpperSecondString)) {
+ while ((*FirstString != '\0') && (*SecondString != '\0') && (UpperFirstString == UpperSecondString)) {
FirstString++;
SecondString++;
UpperFirstString = InternalBaseLibAsciiToUpper (*FirstString);