diff --git a/.github/workflows/build-linux.yml b/.github/workflows/build-linux.yml
index 0ac766a1b..f7614fe8b 100644
--- a/.github/workflows/build-linux.yml
+++ b/.github/workflows/build-linux.yml
@@ -5,12 +5,14 @@ on:
     outputs:
       kernel-url:
         description: "URL of the built (and uploaded) Linux kernel"
-        value: ${{ jobs.build.upload-kernel-image.outputs.artifact-url }}
+        value: ${{ jobs.build.outputs.kernel-url }}
 
 jobs:
   build:
     name: Build Linux
     runs-on: ubuntu-latest
+    outputs:
+      kernel-url: ${{ steps.upload-linux-kernel.outputs.artifact-url }}
     steps:
       - uses: actions/cache/restore@v4
         id: restore-cached-kernel
@@ -54,6 +56,7 @@ jobs:
       - uses: actions/upload-artifact@v4
         id: upload-linux-kernel
         with:
-          name: linux-kernel-image
+          name: linux-kernel
           if-no-files-found: error
+          compression-level: 0
           path: build/arch/x86/boot/bzImage
diff --git a/.github/workflows/test-kernel.yml b/.github/workflows/test-kernel.yml
index 3beb16989..ae2f5bdc0 100644
--- a/.github/workflows/test-kernel.yml
+++ b/.github/workflows/test-kernel.yml
@@ -27,15 +27,29 @@ jobs:
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Build main.sh
         env:
+          KERNEL_URL: ${{ needs.build-linux-kernel.outputs.kernel-url }}
           PYTHON: ${{ steps.py312.outputs.python-path }}
         run: |
+          # Yes, there appears to be no way to just retrieve the
+          # uploaded artifact. One can't use actions/download-artifact
+          # and provide any of the outputs of actions/upload-artifact.
+          # Neither is it possible to just download the thing directly,
+          # because contents are unconditionally zipped. Good. Lord.
+          curl --location \
+            --fail-with-body \
+            --header "Accept: application/vnd.github+json" \
+            --header "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}"\
+            --header "X-GitHub-Api-Version: 2022-11-28" \
+            --output linux-kernel.zip \
+            "${KERNEL_URL}"
+          unzip linux-kernel.zip
           cat <<EOF > main.sh
             export PYTHON=${PYTHON}
             exec cargo test --workspace --all-targets --features=nightly,generate-large-test-files -- --include-ignored
           EOF
           chmod a+x main.sh
       - name: Test
-        uses: danobi/vmtest-action@v0.6
+        uses: danobi/vmtest-action@master
         with:
-          kernel_url: ${{ needs.build-linux-kernel.outputs.kernel-url }}
+          kernel: bzImage
           command: "/bin/bash -c ${{ github.workspace }}/main.sh"