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Title: C++: Fix conflation in barrier guards by MathiasVP · Pull Request #21171 · github/codeql · GitHub

Open Graph Title: C++: Fix conflation in barrier guards by MathiasVP · Pull Request #21171 · github/codeql

X Title: C++: Fix conflation in barrier guards by MathiasVP · Pull Request #21171 · github/codeql

Description: CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security - C++: Fix conflation in barrier guards by MathiasVP · Pull Request #21171 · github/codeql

Open Graph Description: While working on MaD support for barriers/barrier guards for C/C++ I discovered a bug related to indirect barrier guards. This PR fixes that bug at the cost of: Exposing a predicate that was priva...

X Description: While working on MaD support for barriers/barrier guards for C/C++ I discovered a bug related to indirect barrier guards. This PR fixes that bug at the cost of: Exposing a predicate that was priva...

Opengraph URL: https://github.com/github/codeql/pull/21171

X: @github

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C++: Modify test to reveal a bug.https://patch-diff.githubusercontent.com/github/codeql/pull/21171/commits/27a437a5141953f21e39095aa5c9d5899a0cacf6
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C++: Fix bug and accept test changes.https://patch-diff.githubusercontent.com/github/codeql/pull/21171/commits/28681508f3ac1977309a3608268fd6b483757f15
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C++: Add indirect barrier guard to 'cpp/unbounded-write' to prevent FPs after fixing conflation.https://patch-diff.githubusercontent.com/github/codeql/pull/21171/commits/6da7890ff528b3e6b8221f2fa0e86475e763e57a
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Update cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowUtil.qllhttps://patch-diff.githubusercontent.com/github/codeql/pull/21171/commits/5e9fd12d8c71e428b361b56525c75663554e8ed1
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C++: Add change note.https://patch-diff.githubusercontent.com/github/codeql/pull/21171/commits/08a6b99cfd43a3dd6c35b23b4033ae9503291e38
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C++: Switch another 'DataFlowType' to 'Type'.https://patch-diff.githubusercontent.com/github/codeql/pull/21171/commits/f05bff01e464c22fe7ef2aa24c88a1950e567400
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