[clang-tools-extra] [clang-tidy] Move 'cert-msc51-cpp', 'cert-msc32-c' checks outside of … (PR #167143)
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cfe-commits at lists.llvm.org
Sat Nov 8 06:47:32 PST 2025
================
@@ -3,38 +3,5 @@
cert-msc51-cpp
==============
-This check flags all pseudo-random number engines, engine adaptor
-instantiations and ``srand()`` when initialized or seeded with default argument,
-constant expression or any user-configurable type. Pseudo-random number
-engines seeded with a predictable value may cause vulnerabilities e.g. in
-security protocols.
-This is a CERT security rule, see
-`MSC51-CPP. Ensure your random number generator is properly seeded
-<https://wiki.sei.cmu.edu/confluence/display/cplusplus/MSC51-CPP.+Ensure+your+random+number+generator+is+properly+seeded>`_ and
-`MSC32-C. Properly seed pseudorandom number generators
-<https://wiki.sei.cmu.edu/confluence/display/c/MSC32-C.+Properly+seed+pseudorandom+number+generators>`_.
-
-Examples:
-
-.. code-block:: c++
-
- void foo() {
- std::mt19937 engine1; // Diagnose, always generate the same sequence
- std::mt19937 engine2(1); // Diagnose
- engine1.seed(); // Diagnose
- engine2.seed(1); // Diagnose
-
- std::time_t t;
- engine1.seed(std::time(&t)); // Diagnose, system time might be controlled by user
-
- int x = atoi(argv[1]);
- std::mt19937 engine3(x); // Will not warn
- }
-
-Options
--------
-
-.. option:: DisallowedSeedTypes
-
- A comma-separated list of the type names which are disallowed.
- Default value is `time_t,std::time_t`.
+The `cert-msc51-cpp` check is an alias, please see
+:doc:`bugprone-random-generator-seed <../bugprone/random-generator-seed>` for more information.
----------------
zeyi2 wrote:
Same for this one.
https://github.com/llvm/llvm-project/pull/167143
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