Add CVE-2023-4004 #46
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name: kernelCTF PR check | |
on: | |
pull_request_target: | |
types: [opened, synchronize, reopened, labeled] | |
paths: [pocs/linux/kernelctf/**] | |
workflow_dispatch: | |
inputs: | |
prNumber: | |
description: 'PR number' | |
type: number | |
required: true | |
permissions: {} | |
env: | |
PR_REF: ${{ github.event_name == 'workflow_dispatch' && format('refs/pull/{0}/merge', github.event.inputs.prNumber) || github.event.pull_request.head.sha }} | |
jobs: | |
structure_check: | |
# if labeling triggered the job then only run in case of the "recheck" label | |
if: github.event.action != 'labeled' || github.event.label.name == 'recheck' | |
runs-on: ubuntu-latest | |
permissions: {} | |
outputs: | |
targets: ${{ steps.check_submission.outputs.targets }} | |
submission_dir: ${{ steps.check_submission.outputs.submission_dir }} | |
steps: | |
- run: pip install -U jsonschema | |
- name: Checkout repo content | |
uses: actions/checkout@v3 | |
with: | |
ref: master | |
- name: Checkout PR content | |
uses: actions/checkout@v3 | |
with: | |
path: pr | |
ref: ${{ env.PR_REF }} | |
fetch-depth: 0 | |
- id: check_submission | |
name: Check submission | |
working-directory: pr | |
run: | | |
echo "::stop-commands::$(uuidgen)" | |
../kernelctf/check-submission.py ${{ github.event.pull_request.base.sha }} | |
exploit_build: | |
runs-on: ubuntu-latest | |
needs: structure_check | |
permissions: {} | |
strategy: | |
matrix: | |
target: ${{ fromJSON(needs.structure_check.outputs.targets) }} | |
fail-fast: false # do not cancel other targets | |
env: | |
RELEASE_ID: ${{ matrix.target }} | |
EXPLOIT_DIR: pr/pocs/linux/kernelctf/${{ needs.structure_check.outputs.submission_dir }}/exploit/${{ matrix.target }} | |
steps: | |
- name: Checkout PR content | |
uses: actions/checkout@v3 | |
with: | |
path: pr | |
ref: ${{ env.PR_REF }} | |
fetch-depth: 0 | |
- name: List files | |
run: find . | |
- name: Backup original exploit | |
run: mv $EXPLOIT_DIR/exploit ./ | |
- name: Build exploit | |
id: build_exploit | |
working-directory: ${{ env.EXPLOIT_DIR }} | |
run: | | |
if make -n prerequisites; then | |
make prerequisites | |
fi | |
make exploit | |
- name: Upload exploit (newly compiled) | |
if: success() | |
uses: actions/upload-artifact@v3 | |
with: | |
name: exploit_${{ env.RELEASE_ID }} | |
path: ${{ env.EXPLOIT_DIR }}/exploit | |
if-no-files-found: error | |
- name: Upload exploit (original, build failed) | |
if: failure() && steps.build_exploit.outcome == 'failure' | |
uses: actions/upload-artifact@v3 | |
with: | |
name: exploit_${{ env.RELEASE_ID }} | |
path: ./exploit | |
if-no-files-found: error | |
- name: Summarize result (success) | |
if: success() | |
run: printf '✅ Exploit was built successfully.\n\nIt can be found under the artifacts (`exploit_${{ env.RELEASE_ID }}`).\n' >> $GITHUB_STEP_SUMMARY | |
- name: Summarize result (failure) | |
if: failure() && steps.build_exploit.outcome == 'failure' | |
run: printf '❌ The exploit compilation failed.\n\nPlease fix it.\n\nYou can see the build logs by clicking on `...` here and then on "View job logs". Or by selecting `exploit_build (${{ env.RELEASE_ID }})` under Jobs in the left menubar.\n' >> $GITHUB_STEP_SUMMARY | |
exploit_repro: | |
runs-on: ubuntu-22.04-4core | |
timeout-minutes: 30 | |
permissions: {} | |
needs: [structure_check, exploit_build] | |
strategy: | |
matrix: | |
target: ${{ fromJSON(needs.structure_check.outputs.targets) }} | |
fail-fast: false | |
if: always() && needs.structure_check.result == 'success' | |
env: | |
RELEASE_ID: ${{ matrix.target }} | |
SUBMISSION_DIR: ${{ needs.structure_check.outputs.submission_dir }} | |
steps: | |
- name: Checkout repo content | |
uses: actions/checkout@v3 | |
with: | |
ref: master | |
- name: Install tools (QEMU, inotify, expect) | |
run: sudo apt-get update && sudo apt-get install -y qemu-system-x86 inotify-tools expect | |
- name: Enable KVM group perms | |
run: | | |
echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules | |
sudo udevadm control --reload-rules | |
sudo udevadm trigger --name-match=kvm | |
- name: Download exploit | |
uses: actions/download-artifact@v3 | |
with: | |
name: exploit_${{ env.RELEASE_ID }} | |
path: exp/ | |
- name: Fetch rootfs | |
run: | | |
wget https://storage.googleapis.com/kernelctf-build/files/rootfs_repro_v1.img.gz | |
mv rootfs_repro_v1.img.gz rootfs.img.gz | |
gzip -d rootfs.img.gz | |
- name: Download bzImage | |
run: | | |
if [ "$RELEASE_ID" == "mitigation-6.1" ]; then RELEASE_ID="mitigation-6.1-v2"; fi | |
wget https://storage.googleapis.com/kernelctf-build/releases/$RELEASE_ID/bzImage | |
# ugly hack to make Github Actions UI to show repro logs separately in somewhat readable fashion | |
- id: repro1 | |
name: Reproduction (1 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 1 | |
- id: repro2 | |
name: Reproduction (2 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 2 | |
- id: repro3 | |
name: Reproduction (3 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 3 | |
- id: repro4 | |
name: Reproduction (4 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 4 | |
- id: repro5 | |
name: Reproduction (5 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 5 | |
- id: repro6 | |
name: Reproduction (6 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 6 | |
- id: repro7 | |
name: Reproduction (7 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 7 | |
- id: repro8 | |
name: Reproduction (8 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 8 | |
- id: repro9 | |
name: Reproduction (9 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 9 | |
- id: repro10 | |
name: Reproduction (10 / 10) | |
continue-on-error: true | |
run: ./kernelctf/repro.sh 10 | |
- name: Upload repro QEMU logs as an artifact | |
uses: actions/upload-artifact@v3 | |
with: | |
name: repro_logs_${{ env.RELEASE_ID }} | |
path: repro_log_*.txt | |
- name: Reproduction // Summary | |
env: | |
STEPS: ${{ toJSON(steps) }} | |
run: | | |
echo $STEPS >> steps.json | |
./kernelctf/repro_summary.py ${{ github.run_id }} |