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  1. Qt
  2. QTBUG-69996

Using an Uninitialized Variable

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    • 934d93b9151134116d0fe23234ee9d0519a969ba

      Hello,

      When building the MASM library for 64 bit architectures, an unused variable was detected in the function:

          explicit ALWAYS_INLINE MatchResult(EncodedMatchResult encoded)
    {
        union u {
            uint64_t encoded;
            struct s {
                size_t start;
                size_t end;
            } split;
        } value;
        value.encoded = encoded;
        start = value.split.start;
        end = value.split.end;
    }

      in the file qtdeclarative/src/3rdparty/masm/runtime/MatchResult.h

      Usually, on 64bit architectures, size_t equals the size of uint64_t, so this could lead to the value of end not being properly populated.

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            erikv Erik Verbruggen
            nvelinov Nikola Velinov
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              Created:
              Updated:
              Resolved:

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