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Add CVE-2023-4004

Add CVE-2023-4004 #41

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 }}