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CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security

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**Description of the false positive** Hi, I wonder if this is a false positive in cs/dereferenced-value-is-always-null. From my understanding, the program would never run L975. **Code samples or links to...

C#
false-positive

Test updates after extractor changes

C++
depends on internal PR

As pointed out in https://github.com/bazelbuild/bazel/issues/21768, bazel 7 moved multi-arch macOS toolchain support to `apple_support`, so building Swift (which must target `x86_64` for now) was broken. Internally in the codeql CLI...

Swift

These were not converted when most of the rest of the models were converted in https://github.com/github/codeql/pull/12750 because at the time flow didn't work through variadic parameters when using models-as-data. That...

documentation
Go

Detect user-controllable environment variable injection that can lead to security issues.

JS
documentation

I want to get a call graph in JavaScript. I have found a solution in #9458 . But when I add query metadata to the query, for example ``` /**...

question

C#
documentation
Go

This PR aims to improve the recommendations with the following changes: - Replace segmentation fault with crash that is platform agnostic (I think segmentation fault is not really a thing...

C++
documentation