Analysis upload fails with `rejecting SARIF, as there are more threadflow steps per result than allowed (19350 > 10000)`

CodeQL Action のアップロードステップと、参照されている upload-lib.js および analyze-action.js のスタックフレームから開始し、示されている systemd ワークフローとサンプルジョブを使って失敗を再現します。SARIF の threadflow 制限を緩和できるかどうかを判断し、動作する構成を文書化するか、アップロードが引き続き拒否されることを確認します。

Hello!

Today I wanted to enhance our CodeQL scan in the systemd repo by using the security-extended and security-and-quality query sets, but after adding them the CodeQL action can no longer upload the resulting SARIF file:

Waiting for processing to finish
  Analysis upload status is pending.
  Analysis upload status is failed.
  Error: Code Scanning could not process the submitted SARIF file:
  rejecting SARIF, as there are more threadflow steps per result than allowed (19350 > 10000)
  Error: Code Scanning could not process the submitted SARIF file:
  rejecting SARIF, as there are more threadflow steps per result than allowed (19350 > 10000)
      at Object.waitForProcessing (/home/runner/work/_actions/github/codeql-action/0c670bbf0414f39666df6ce8e718ec5662c21e03/lib/upload-lib.js:334:19)
      at async run (/home/runner/work/_actions/github/codeql-action/0c670bbf0414f39666df6ce8e718ec5662c21e03/lib/analyze-action.js:131:13)
      at async runWrapper (/home/runner/work/_actions/github/codeql-action/0c670bbf0414f39666df6ce8e718ec5662c21e03/lib/analyze-action.js:221:9)

Example job: https://github.com/systemd/systemd/actions/runs/3053021449/jobs/4923112318

Configuration:

---
# vi: ts=2 sw=2 et:
# SPDX-License-Identifier: LGPL-2.1-or-later
#
name: "CodeQL"

on:
  pull_request:
    branches:
      - main
      - v[0-9]+-stable
    paths:
      - '**/meson.build'
      - '.github/**/codeql*'
      - 'src/**'
      - 'test/**'
      - 'tools/**'
  push:
    branches:
      - main
      - v[0-9]+-stable

permissions:
  contents: read

jobs:
  analyze:
    name: Analyze
    runs-on: ubuntu-22.04
    concurrency:
      group: ${{ github.workflow }}-${{ matrix.language }}-${{ github.ref }}
      cancel-in-progress: true
    permissions:
      actions: read
      security-events: write

    strategy:
      fail-fast: false
      matrix:
        language: ['cpp', 'python']

    steps:
    - name: Checkout repository
      uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b

    - name: Initialize CodeQL
      uses: github/codeql-action/init@0c670bbf0414f39666df6ce8e718ec5662c21e03
      with:
        languages: ${{ matrix.language }}
        queries: +security-extended,security-and-quality

    - run: sudo -E .github/workflows/unit_tests.sh SETUP

    - name: Autobuild
      uses: github/codeql-action/autobuild@0c670bbf0414f39666df6ce8e718ec5662c21e03

    - name: Perform CodeQL Analysis
      uses: github/codeql-action/analyze@0c670bbf0414f39666df6ce8e718ec5662c21e03

Since the build & analysis finishes successfully and only the last step fails, I don't think this is an issue on our side - is there something which can be done to mitigate this or we're out of luck?

Thank you!