👷 Fix GCC sanitizers

Author: elbeno

.github/workflows/unit_tests.yml

@@ -222,13 +222,18 @@ jobs:
       fail-fast: false
       matrix:
         sanitizer: [undefined, address, thread]
-        compiler: [clang]
+        compiler: [clang, gcc]
         include:
           - compiler: clang
             cc: "clang"
             cxx: "clang++"
             install: wget https://apt.llvm.org/llvm.sh && chmod +x llvm.sh && sudo ./llvm.sh 18
             toolchain_root: "/usr/lib/llvm-18"
+          - compiler: gcc
+            cc: "gcc-13"
+            cxx: "g++-13"
+            install: sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt-get install -y gcc-13 g++-13
+            toolchain_root: "/usr"
 
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
@@ -265,6 +270,13 @@ jobs:
           path: ~/cpm-cache
           key: ${{runner.os}}-${{env.cache-name}}-${{ hashFiles('**/CMakeLists.txt', 'cmake/**') }}
 
+      # https://github.com/actions/runner-images/issues/9524
+      - name: Fix kernel mmap rnd bits
+        # Asan in llvm 14 provided in ubuntu 22.04 is incompatible with
+        # high-entropy ASLR in much newer kernels that GitHub runners are
+        # using leading to random crashes: https://reviews.llvm.org/D148280
+        run: sudo sysctl vm.mmap_rnd_bits=28
+
       - name: Build Unit Tests
         run: cmake --build ${{github.workspace}}/build -t unit_tests
 
@@ -274,7 +286,9 @@ jobs:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
       - name: Install build tools
-        run: sudo apt update && sudo apt install -y gcc-${{env.DEFAULT_GCC_VERSION}} g++-${{env.DEFAULT_GCC_VERSION}} ninja-build valgrind
+        run: |
+          sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+          sudo apt update && sudo apt-get install -y gcc-${{env.DEFAULT_GCC_VERSION}} g++-${{env.DEFAULT_GCC_VERSION}} ninja-build valgrind
 
       - name: Restore CPM cache
         env: