[llvm-bugs] [Bug 50924] New: msvc fallback mode detection OOM

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=50924

            Bug ID: 50924
           Summary: msvc fallback mode detection OOM
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Driver
          Assignee: unassignedclangbugs at nondot.org
          Reporter: info at ustchcs.com
                CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
                    richard-llvm at metafoo.co.uk

https://github.com/llvm/llvm-project/blob/main/clang/lib/Driver/ToolChains/MSVC.cpp#L350:

  VSInstallPath.find(R"(\Common7\IDE)")

is not checked against std::string::npos and passed directly into
llvm::SmallString, which could result in an OOM on windows 7 sp1 (7601) with
visual studio 6.0 installed.

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