diff --git a/.github/workflows/test-wheel-linux.yml b/.github/workflows/test-wheel-linux.yml
index 2f8e9a47a02..0bb470b26c3 100644
--- a/.github/workflows/test-wheel-linux.yml
+++ b/.github/workflows/test-wheel-linux.yml
@@ -467,9 +467,32 @@ jobs:
           pytest -rxXs -v tests/test_utils.py tests/example_tests/
           popd
 
+      - name: Checkout numba-cuda tests at matching tag
+        if: ${{ inputs.test-mode == 'nightly-numba-cuda' && env.NUMBA_CUDA_VER != '' }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: NVIDIA/numba-cuda
+          ref: v${{ env.NUMBA_CUDA_VER }}
+          path: numba-cuda-released
+
       - name: Run numba-cuda tests
-        if: ${{ inputs.test-mode == 'nightly-numba-cuda' }}
-        run: python -m numba.runtests numba.cuda.tests
+        if: ${{ inputs.test-mode == 'nightly-numba-cuda' && env.NUMBA_CUDA_VER != '' }}
+        env:
+          LOCAL_CTK: ${{ matrix.LOCAL_CTK }}
+        run: |
+          if [[ "${LOCAL_CTK}" != 1 ]]; then
+            # Let numba-cuda skip inputs that require toolkit executables.
+            export NUMBA_CUDA_TEST_WHEEL_ONLY=1
+          fi
+          # Run from numba-cuda's testing/ dir so its pytest.ini kicks in
+          # (consider_namespace_packages=true + --pyargs numba.cuda.tests).
+          # -k "not TestIpc": numba-cuda v0.30.4 accesses CUipcMemHandle.reserved,
+          # which cuda-bindings intentionally removed. numba-cuda is EOL upstream,
+          # so no fix is coming. See cuda-python#2748. The affected tests all
+          # live in the two TestIpcMemory/TestIpcStaged classes in test_ipc.py.
+          pushd numba-cuda-released/testing
+          pytest -v -k "not TestIpc"
+          popd
 
       - name: Checkout numba-cuda-mlir tests at matching tag
         if: ${{ inputs.test-mode == 'nightly-numba-cuda-mlir' && env.NUMBA_CUDA_MLIR_VER != '' }}
@@ -495,9 +518,13 @@ jobs:
           # Skip tests/benchmarks/ and tests/doc_examples/ — they import the
           # numba package at collection time, which cuSIMT intentionally does
           # not depend on. See NVIDIA/numba-cuda-mlir#136.
+          # test_device_record_copy (WithRecord variant): flaky NaN vs NaN
+          # compare from uninitialized np.recarray memory. See
+          # NVIDIA/numba-cuda-mlir#341.
           pytest -rxXs -v \
             --ignore=tests/benchmarks \
             --ignore=tests/doc_examples \
+            --deselect 'tests/numba_cuda_tests/cudadrv/test_cuda_devicerecord.py::TestCudaDeviceRecordWithRecord::test_device_record_copy' \
             tests/
           popd
 
@@ -520,8 +547,8 @@ jobs:
           # patterns that pytest 9.1 rejects; the main-side fix (#2212) has
           # not yet shipped in a cuda-core release.
           pip install "pytest<9.1"
-          # Version-gated deselect: drops automatically when a newer
-          # cuda-core release with the wrapper-mapping update ships.
+          # Version-gated deselects: drop automatically when a newer
+          # cuda-core release ships that removes each source.
           DESELECTS=()
           if python -c "from packaging.version import Version; import sys; sys.exit(0 if Version('${CUDA_CORE_RELEASED_VER}') <= Version('1.0.1') else 1)"; then
             # NvlinkVersion: v1.0.1's wrapper mapping predates
@@ -531,6 +558,15 @@ jobs:
               --deselect 'tests/test_enum_coverage.py::test_wrapper_covers_all_binding_members[NvlinkVersion]'
             )
           fi
+          if python -c "from packaging.version import Version; import sys; sys.exit(0 if Version('${CUDA_CORE_RELEASED_VER}') <= Version('1.2.1') else 1)"; then
+            # test_frozen_driver_table_covers_all_curesult_members: v1.2.1's
+            # frozen table (capped at CTK 13.1.1) predates 3 CUresult members
+            # added by main cuda-bindings 13.4.1. Reverted on main by #2792;
+            # drop this deselect once a cuda-core release with the revert ships.
+            DESELECTS+=(
+              --deselect 'tests/test_utils_enum_explanations_helpers.py::test_frozen_driver_table_covers_all_curesult_members'
+            )
+          fi
           pytest -rxXs -v --randomly-dont-reorganize \
             "${DESELECTS[@]}" \
             tests/
diff --git a/.github/workflows/test-wheel-windows.yml b/.github/workflows/test-wheel-windows.yml
index 1b9fc0ff9cb..7abfc74126b 100644
--- a/.github/workflows/test-wheel-windows.yml
+++ b/.github/workflows/test-wheel-windows.yml
@@ -450,10 +450,27 @@ jobs:
           pytest -rxXs -v tests/test_utils.py tests/example_tests/
           popd
 
+      - name: Checkout numba-cuda tests at matching tag
+        if: ${{ inputs.test-mode == 'nightly-numba-cuda' && env.NUMBA_CUDA_VER != '' }}
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          repository: NVIDIA/numba-cuda
+          ref: v${{ env.NUMBA_CUDA_VER }}
+          path: numba-cuda-released
+
       - name: Run numba-cuda tests
-        if: ${{ inputs.test-mode == 'nightly-numba-cuda' }}
+        if: ${{ inputs.test-mode == 'nightly-numba-cuda' && env.NUMBA_CUDA_VER != '' }}
+        env:
+          LOCAL_CTK: ${{ matrix.LOCAL_CTK }}
         shell: bash --noprofile --norc -xeuo pipefail {0}
-        run: python -m numba.runtests numba.cuda.tests
+        run: |
+          if [[ "${LOCAL_CTK}" != 1 ]]; then
+            export NUMBA_CUDA_TEST_WHEEL_ONLY=1
+          fi
+          # See linux step for rationale on running from testing/ and -k.
+          pushd numba-cuda-released/testing
+          pytest -v -k "not TestIpc"
+          popd
 
       - name: Checkout numba-cuda-mlir tests at matching tag
         if: ${{ inputs.test-mode == 'nightly-numba-cuda-mlir' && env.NUMBA_CUDA_MLIR_VER != '' }}
@@ -476,9 +493,11 @@ jobs:
           pushd numba-cuda-mlir-released
           pip install --upgrade "pip>=25.1"
           pip install --group test
+          # See linux step for rationale on the --deselect.
           pytest -rxXs -v \
             --ignore=tests/benchmarks \
             --ignore=tests/doc_examples \
+            --deselect 'tests/numba_cuda_tests/cudadrv/test_cuda_devicerecord.py::TestCudaDeviceRecordWithRecord::test_device_record_copy' \
             tests/
           popd
 
@@ -517,6 +536,12 @@ jobs:
               --deselect 'tests/test_memory.py::test_non_managed_resources_report_not_managed[pinned]'
             )
           fi
+          if python -c "from packaging.version import Version; import sys; sys.exit(0 if Version('${CUDA_CORE_RELEASED_VER}') <= Version('1.2.1') else 1)"; then
+            # See linux step for rationale (#2792 revert).
+            DESELECTS+=(
+              --deselect 'tests/test_utils_enum_explanations_helpers.py::test_frozen_driver_table_covers_all_curesult_members'
+            )
+          fi
           pytest -rxXs -v --randomly-dont-reorganize \
             "${DESELECTS[@]}" \
             tests/
diff --git a/ci/tools/run-tests b/ci/tools/run-tests
index cfa7e9d6a7a..c882fae0517 100755
--- a/ci/tools/run-tests
+++ b/ci/tools/run-tests
@@ -162,10 +162,12 @@ elif [[ "${test_module}" == "core" || "${test_module}" == nightly-* ]]; then
     elif [[ "${test_module}" == "nightly-numba-cuda" ]]; then
       echo "Installing pathfinder + bindings + core + test deps + numba-cuda"
       # numba-cuda's test-cuXX group deps (can't use --group for a wheel install):
+      # numpy<2.5: numba-cuda 0.30.4 references np.row_stack, removed in numpy 2.5. See NVIDIA/numba-cuda#907.
       PIP_ARGS+=(
         "cuda-toolkit[curand,cublas]==${TEST_CUDA_MAJOR_MINOR}.*"
         "numba-cuda[cu${TEST_CUDA_MAJOR}]"
         "cupy-cuda${TEST_CUDA_MAJOR}x"
+        "numpy<2.5"
         psutil cffi pytest-xdist pytest-benchmark filecheck ml_dtypes statistics
       )
     elif [[ "${test_module}" == "nightly-numba-cuda-mlir" ]]; then
@@ -173,14 +175,24 @@ elif [[ "${test_module}" == "core" || "${test_module}" == nightly-* ]]; then
       # curand/cublas + cupy: some numba-cuda-mlir tests (e.g.
       # test_fortran_contiguous) call cp.random, which dlopens libcurand at
       # runtime. Mirror the numba-cuda branch, which installs the same libs.
+      # cccl: NVRTC needs <nv/target> for cooperative_groups / curand_kernel.h.
       PIP_ARGS+=(
         "numba-cuda-mlir[cu${TEST_CUDA_MAJOR}]"
-        "cuda-toolkit[curand,cublas]==${TEST_CUDA_MAJOR_MINOR}.*"
+        "cuda-toolkit[curand,cublas,cccl]==${TEST_CUDA_MAJOR_MINOR}.*"
         "cupy-cuda${TEST_CUDA_MAJOR}x"
       )
     fi
 
     pip install "${PIP_ARGS[@]}"
+
+    if [[ "${test_module}" == "nightly-numba-cuda" ]]; then
+      # Downgrade pytest for numba-cuda: cuda_core's test-cuXX group hard-pins
+      # pytest==9.1.0, but numba-cuda's subTest usage breaks under pytest 9.
+      # Can't add pytest<9 to PIP_ARGS above because pip can't satisfy both
+      # ==9.1.0 and <9 in one solve. See NVIDIA/numba-cuda#637.
+      pip install "pytest<9"
+    fi
+
     echo "Nightly install complete — installed packages:"
     pip list
     popd
@@ -193,6 +205,15 @@ elif [[ "${test_module}" == "core" || "${test_module}" == nightly-* ]]; then
       if [[ -n "${GITHUB_ENV:-}" ]]; then
         echo "NUMBA_CUDA_MLIR_VER=${installed_ver}" >> "${GITHUB_ENV}"
       fi
+    elif [[ "${test_module}" == "nightly-numba-cuda" ]]; then
+      # Expose the installed numba-cuda version so the workflow can
+      # actions/checkout the matching v<X.Y.Z> tag from NVIDIA/numba-cuda
+      # (the wheel does not ship test_*.py files at a pytest-discoverable
+      # top level; upstream's testing/pytest.ini is required to run them).
+      installed_ver=$(pip show numba-cuda | awk '/^Version:/{print $2}')
+      if [[ -n "${GITHUB_ENV:-}" ]]; then
+        echo "NUMBA_CUDA_VER=${installed_ver}" >> "${GITHUB_ENV}"
+      fi
     fi
   fi
 fi