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このページは Ubuntu 向けの修正状況です。脆弱性そのものの説明は CVE 本体のページにあります。 CVE-2026-72408 の詳細 →
カテゴリ
UBUNTU-CVE-2026-72408

linux-hwe-edge の脆弱性 (UBUNTU-CVE-2026-72408)

概要

linux-hwe-edge に 脆弱性 (UBUNTU-CVE-2026-72408) が存在。悪用されるとシステム全体を乗っ取られる可能性があります。対策: 7.0.0-1014.14~24.04.1 以上に更新。

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

In the Linux kernel, the following vulnerability has been resolved: geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint geneve_gro_receive() reads the GRO hint through geneve_sk_gro_hint_off(), which honours it only when the socket enabled IFLA_GENEVE_GRO_HINT (gs->gro_hint). geneve_gro_complete() instead calls the low-level geneve_opt_gro_hint_off() and acts on the hint unconditionally. On a tunnel without the hint, receive aggregates the frames as plain ETH_P_TEB while complete still honours an attacker-supplied hint option: it inflates gh_len by gro_hint->nested_hdr_len (u8) and redirects the dispatch type, so the inner gro_complete handler runs at nhoff + gh_len, an offset receive never pulled nor validated, reading out of bounds of the skb head: BUG: KASAN: slab-out-of-bounds in ipv6_gro_complete (net/ipv6/ip6_offload.c:196) Read of size 1 at addr ffff88800fe91980 by task exploit/153 ipv6_gro_complete (net/ipv6/ip6_offload.c:196) geneve_gro_complete (drivers/net/geneve.c:965) udp_gro_complete (net/ipv4/udp_offload.c:940) inet_gro_complete (net/ipv4/af_inet.c:1621) __gro_flush (net/core/gro.c:306) Gate the complete path on gs->gro_hint too via geneve_sk_gro_hint_off(), so both paths agree. Tunnels that enable the hint are unaffected.

出典: OSV.dev (Open Source Vulnerabilities) OSV

自動生成の要約

取得元のデータ (CVSS・CWE・影響バージョンなど) から SecPulse が定型文で組み立てた要約です。AI は使っていません。正確な内容は下の原文と参照URLで確認してください。

linux-hwe-edge という製品で、UBUNTU-CVE-2026-72408 という番号がついた弱点 (脆弱性) が見つかりました。
悪用されるとシステム全体を乗っ取られる可能性があります。
対策: linux-hwe-edge を 7.0.0-1014.14~24.04.1 以上に更新してください。
心配なら、システム担当者や製品の公式サイトで「linux-hwe-edge UBUNTU-CVE-2026-72408」を検索してください。

UBUNTU-CVE-2026-72408 (linux-hwe-edge)
攻撃ベクター: ネットワーク経由 (リモート攻撃可) / 認証不要 / 被害者操作不要
修正バージョン: 7.0.0-1014.14~24.04.1 (即時適用推奨)
対応方針: 1) SBOMで影響バージョン横断確認, 2) ステージング検証→本番更新, 3) WAF/プロキシで該当エンドポイントを監視, 4) ログでIOC調査。
参考: 当ページの『参照URL』の GHSA / vendor advisory / patched release を参照。

❓ 何が問題か

linux-hwe-edge に 脆弱性 (分類未定) があります。

📍 影響範囲

linux-hwe-edge の影響バージョンはベンダーのアドバイザリで確認してください。

🔥 重要度

重要度: ?。悪用されるとシステム全体を乗っ取られる可能性があります。

🔧 修正方法

7.0.0-1014.14~24.04.1 に更新してください。

🛡️ 暫定回避

修正版が未提供時は、影響機能の無効化・WAFルール・ネットワークACLでの遮断を検討。

🔍 検知方法

Webサーバ・プロキシ・WAFログで該当CVEのIOCに合致する不審リクエストを検索。SBOM/依存ファイルで影響バージョンを横断確認。

対応アクション

SOC/SREチームが順番に実行すべき具体的なステップとコマンド例

  1. 1
    影響範囲の特定 identify
    grep -r 'linux-hwe-edge' . | 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 linux-hwe-edge を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    パッチ適用 patch
    Upgrade linux-hwe-edge to 7.0.0-1014.14~24.04.1

    ステージング環境で 7.0.0-1014.14~24.04.1 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を含めること。

  3. 3
    事後検証 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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

影響パッケージ

Ubuntu:16.04:LTS linux-hwe-edge
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Ubuntu:18.04:LTS linux-aws-5.0
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Ubuntu:18.04:LTS linux-aws-5.3
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Ubuntu:18.04:LTS linux-azure
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Ubuntu:18.04:LTS linux-azure-5.3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-azure-edge
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-gcp
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Ubuntu:18.04:LTS linux-gcp-5.3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-gke-4.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-gke-5.4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-gkeop-5.4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-hwe
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-hwe-edge
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-oem
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Ubuntu:18.04:LTS linux-oracle-5.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS linux-oracle-5.3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-aws-5.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-aws-5.13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-aws-5.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-azure-5.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-azure-5.13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-azure-5.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-azure-fde
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-gcp-5.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-gcp-5.13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-gcp-5.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-gke
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Ubuntu:20.04:LTS linux-gke-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-gkeop
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-gkeop-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-hwe-5.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-hwe-5.13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-hwe-5.8
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Ubuntu:20.04:LTS linux-intel-5.13
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Ubuntu:20.04:LTS linux-oem-5.10
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Ubuntu:20.04:LTS linux-oem-5.13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-oem-5.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-oem-5.6
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-oracle-5.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-oracle-5.13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-oracle-5.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-raspi2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-riscv
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-riscv-5.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS linux-riscv-5.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-allwinner-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-aws-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-aws-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-aws-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-azure-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-azure-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-azure-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-azure-fde-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-azure-fde-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-gcp-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-gcp-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-gcp-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-hwe-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-hwe-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-hwe-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-intel-iot-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-lowlatency-hwe-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-lowlatency-hwe-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-lowlatency-hwe-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-nvidia-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-nvidia-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-oem-5.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-oem-6.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-oem-6.1
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-oem-6.5
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Ubuntu:22.04:LTS linux-oracle-6.5
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Ubuntu:22.04:LTS linux-realtime
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Ubuntu:22.04:LTS linux-riscv
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Ubuntu:22.04:LTS linux-riscv-5.19
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Ubuntu:22.04:LTS linux-riscv-6.5
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Ubuntu:22.04:LTS linux-starfive-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS linux-starfive-6.2
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Ubuntu:22.04:LTS linux-starfive-6.5
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Ubuntu:24.04:LTS linux-aws-6.14
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Ubuntu:24.04:LTS linux-aws-6.17
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Ubuntu:24.04:LTS linux-aws-7.0
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Ubuntu:24.04:LTS linux-azure-6.11
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Ubuntu:24.04:LTS linux-azure-6.14
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Ubuntu:24.04:LTS linux-azure-6.17
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Ubuntu:24.04:LTS linux-azure-7.0
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Ubuntu:24.04:LTS linux-azure-fde-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS linux-azure-fde-6.17
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Ubuntu:24.04:LTS linux-azure-fde-7.0
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Ubuntu:24.04:LTS linux-azure-nvidia-6.14
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Ubuntu:24.04:LTS linux-gcp-6.11
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Ubuntu:24.04:LTS linux-gcp-6.14
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Ubuntu:24.04:LTS linux-gcp-7.0
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Ubuntu:24.04:LTS linux-hwe-6.11
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Ubuntu:24.04:LTS linux-hwe-6.14
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Ubuntu:24.04:LTS linux-hwe-7.0
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Ubuntu:24.04:LTS linux-lowlatency-hwe-6.11
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Ubuntu:24.04:LTS linux-nvidia-6.11
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Ubuntu:24.04:LTS linux-nvidia-7.0
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Ubuntu:24.04:LTS linux-oem-6.11
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Ubuntu:24.04:LTS linux-oem-6.14
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Ubuntu:24.04:LTS linux-oem-6.8
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Ubuntu:24.04:LTS linux-oracle-6.14
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Ubuntu:24.04:LTS linux-oracle-7.0
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Ubuntu:24.04:LTS linux-raspi-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS linux-realtime
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Ubuntu:24.04:LTS linux-riscv
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Ubuntu:24.04:LTS linux-riscv-6.14
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Ubuntu:24.04:LTS linux-riscv-6.17
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Ubuntu:24.04:LTS linux-riscv-7.0
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Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.14
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-38.38"}]}]
Ubuntu:26.04:LTS linux-aws
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1014.14"}]}]
Ubuntu:26.04:LTS linux-azure
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1017.17"}]}]
Ubuntu:26.04:LTS linux-azure-fde
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1016.16"}]}]
Ubuntu:26.04:LTS linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1014.14"}]}]
Ubuntu:26.04:LTS linux-gke
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1008.9"}]}]
Ubuntu:26.04:LTS linux-ibm
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Ubuntu:26.04:LTS linux-nvidia
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS linux-nvidia-bos
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS linux-oem-7.0
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1015.15"}]}]
Ubuntu:26.04:LTS linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-1013.13"}]}]
Ubuntu:26.04:LTS linux-raspi
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-38.38.1"}]}]
Ubuntu:26.04:LTS linux-riscv
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.0-38.38.1"}]}]

参照URL

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