diff options
| -rw-r--r-- | qmake/library/qmakeparser.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/qmake/library/qmakeparser.cpp b/qmake/library/qmakeparser.cpp index 95a072392e..8170eee76c 100644 --- a/qmake/library/qmakeparser.cpp +++ b/qmake/library/qmakeparser.cpp @@ -280,7 +280,8 @@ void QMakeParser::putHashStr(ushort *&pTokPtr, const ushort *buf, uint len) *tokPtr++ = (ushort)hash; *tokPtr++ = (ushort)(hash >> 16); *tokPtr++ = (ushort)len; - memcpy(tokPtr, buf, len * 2); + if (len) // buf may be nullptr; don't pass that to memcpy (-> undefined behavior) + memcpy(tokPtr, buf, len * 2); pTokPtr = tokPtr + len; } |