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OESA-2026-2418

Vulnerability in kernel (OESA-2026-2418)

Summary

vulnerability in kernel (OESA-2026-2418). Risk of unauthorized operations or information disclosure. Exploitable via ``skb_warn_bad_offload``. Mitigation: upgrade to `6.6.0-145.1.12.150.oe2403sp1` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **OESA-2026-2418** has been found in kernel. Attackers can target a specific entry point like ``skb_warn_bad_offload`` over the network to misuse the product. Risk of unauthorized operations or information disclosure. CVSS score: ?/10. What to do: upgrade kernel to **6.6.0-145.1.12.150.oe2403sp1** or later. If unsure, ask your IT team or search "kernel OESA-2026-2418" on the vendor's site.
OESA-2026-2418 (kernel) — Attack surface: `skb_warn_bad_offload` / `exiting_module` Patched: `6.6.0-145.1.12.150.oe2403sp1` — apply immediately Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs. Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (unclassified) exists in kernel. Attackers reach the vulnerable code path via ``skb_warn_bad_offload`` without authentication.
📍 Affected scope
kernel — . Attack surface: `skb_warn_bad_offload` / `exiting_module`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **6.6.0-145.1.12.150.oe2403sp1**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'kernel' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response Actions (7 steps)

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'kernel' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `kernel` を grep し、稼働しているサービス・バージョンを把握する。

  2. 6
    Apply patch patch 
    Upgrade kernel to 6.6.0-145.1.12.150.oe2403sp1

    ステージング環境で 6.6.0-145.1.12.150.oe2403sp1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。

  3. 7
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。

Affected packages

openEuler:24.03-LTS-SP1 kernel
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.0-145.1.12.150.oe2403sp1"}]}]

References

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