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-2023-53176 の詳細 →
UBUNTU-CVE-2023-53176
linux の脆弱性 (UBUNTU-CVE-2023-53176)
概要
linux に 脆弱性 (UBUNTU-CVE-2023-53176) が存在。不正な操作・情報露出のリスクがあります。対策: 5.4.0-1109.118~18.04.1 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: serial: 8250: Reinit port->pm on port specific driver unbind When we unbind a serial port hardware specific 8250 driver, the generic serial8250 driver takes over the port. After that we see an oops about 10 seconds later. This can produce the following at least on some TI SoCs: Unhandled fault: imprecise external abort (0x1406) Internal error: : 1406 [#1] SMP ARM Turns out that we may still have the serial port hardware specific driver port->pm in use, and serial8250_pm() tries to call it after the port specific driver is gone: serial8250_pm [8250_base] from uart_change_pm+0x54/0x8c [serial_base] uart_change_pm [serial_base] from uart_hangup+0x154/0x198 [serial_base] uart_hangup [serial_base] from __tty_hangup.part.0+0x328/0x37c __tty_hangup.part.0 from disassociate_ctty+0x154/0x20c disassociate_ctty from do_exit+0x744/0xaac do_exit from do_group_exit+0x40/0x8c do_group_exit from __wake_up_parent+0x0/0x1c Let's fix the issue by calling serial8250_set_defaults() in serial8250_unregister_port(). This will set the port back to using the serial8250 default functions, and sets the port->pm to point to serial8250_pm.
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 という製品で、UBUNTU-CVE-2023-53176 という番号がついた弱点 (脆弱性) が見つかりました。
不正な操作・情報露出のリスクがあります。
対策: linux を 5.4.0-1109.118~18.04.1 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 UBUNTU-CVE-2023-53176」を検索してください。
UBUNTU-CVE-2023-53176 (linux)
攻撃ベクター: ローカル / 被害者操作不要
修正バージョン: 5.4.0-1109.118~18.04.1 (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 に 脆弱性 (分類未定) があります。
📍 影響範囲
linux 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: ?。不正な操作・情報露出のリスクがあります。
🔧 修正方法
5.4.0-1109.118~18.04.1 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影響範囲の特定 identify
grep -r 'linux' . | 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を grep し、稼働しているサービス・バージョンを把握する。 -
2パッチ適用 patch
Upgrade linux to 5.4.0-1109.118~18.04.1ステージング環境で 5.4.0-1109.118~18.04.1 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:Pro:14.04:LTS
linux
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Ubuntu:Pro:14.04:LTS
linux-aws
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Ubuntu:Pro:14.04:LTS
linux-azure
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Ubuntu:Pro:14.04:LTS
linux-lts-xenial
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Ubuntu:Pro:16.04:LTS
linux
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Ubuntu:Pro:16.04:LTS
linux-aws
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Ubuntu:Pro:16.04:LTS
linux-aws-hwe
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Ubuntu:Pro:16.04:LTS
linux-azure
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Ubuntu:Pro:16.04:LTS
linux-gcp
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Ubuntu:Pro:16.04:LTS
linux-hwe
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Ubuntu:16.04:LTS
linux-hwe-edge
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Ubuntu:Pro:16.04:LTS
linux-kvm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:16.04:LTS
linux-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
linux
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Ubuntu:Pro:18.04:LTS
linux-aws
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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:Pro:18.04:LTS
linux-aws-5.4
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Ubuntu:18.04:LTS
linux-azure
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
linux-azure-4.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
linux-azure-5.3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
linux-azure-5.4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1115.122~18.04.1"}]}]
Ubuntu:18.04:LTS
linux-azure-edge
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Ubuntu:18.04:LTS
linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
linux-gcp-4.15
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Ubuntu:18.04:LTS
linux-gcp-5.3
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Ubuntu:Pro:18.04:LTS
linux-gcp-5.4
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Ubuntu:18.04:LTS
linux-gke-4.15
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Ubuntu:18.04:LTS
linux-gke-5.4
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Ubuntu:18.04:LTS
linux-gkeop-5.4
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Ubuntu:18.04:LTS
linux-hwe
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Ubuntu:Pro:18.04:LTS
linux-hwe-5.4
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Ubuntu:18.04:LTS
linux-hwe-edge
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
linux-ibm-5.4
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Ubuntu:Pro:18.04:LTS
linux-kvm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
linux-oem
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Ubuntu:Pro:18.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
linux-oracle-5.0
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Ubuntu:18.04:LTS
linux-oracle-5.3
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Ubuntu:Pro:18.04:LTS
linux-oracle-5.4
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Ubuntu:Pro:18.04:LTS
linux-raspi-5.4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1093.104~18.04.1"}]}]
Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-aws-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-azure-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:18.04:LTS
linux-gcp-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:18.04:LTS
linux-aws-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:18.04:LTS
linux-azure-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:18.04:LTS
linux-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS:18.04:LTS
linux-gcp-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-162.179"}]}]
Ubuntu:20.04:LTS
linux-aws
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Ubuntu:20.04:LTS
linux-aws-5.15
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Ubuntu:20.04:LTS
linux-azure
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Ubuntu:20.04:LTS
linux-azure-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1046.53~20.04.1"}]}]
Ubuntu:20.04:LTS
linux-bluefield
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1070.76"}]}]
Ubuntu:20.04:LTS
linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1112.121"}]}]
Ubuntu:20.04:LTS
linux-gcp-5.15
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Ubuntu:20.04:LTS
linux-hwe-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-83.92~20.04.1"}]}]
Ubuntu:20.04:LTS
linux-ibm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1056.61"}]}]
Ubuntu:20.04:LTS
linux-ibm-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1037.40~20.04.1"}]}]
Ubuntu:20.04:LTS
linux-intel-iotg-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1040.46~20.04.1"}]}]
Ubuntu:20.04:LTS
linux-iot
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Ubuntu:20.04:LTS
linux-kvm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1098.104"}]}]
Ubuntu:20.04:LTS
linux-lowlatency-hwe-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-83.92~20.04.1"}]}]
Ubuntu:20.04:LTS
linux-nvidia-tegra-5.15
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Ubuntu:20.04:LTS
linux-oracle
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Ubuntu:20.04:LTS
linux-oracle-5.15
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Ubuntu:20.04:LTS
linux-raspi
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Ubuntu:20.04:LTS
linux-riscv-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1040.44~20.04.3"}]}]
Ubuntu:20.04:LTS
linux-xilinx-zynqmp
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Ubuntu:20.04:LTS
linux-aws-5.11
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Ubuntu:20.04:LTS
linux-aws-5.13
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Ubuntu:20.04:LTS
linux-aws-5.8
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Ubuntu:20.04:LTS
linux-azure-5.11
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Ubuntu:20.04:LTS
linux-azure-5.13
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Ubuntu:20.04:LTS
linux-azure-5.8
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Ubuntu:20.04:LTS
linux-azure-fde
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Ubuntu:Pro:20.04:LTS
linux-azure-fde-5.15
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Ubuntu:20.04:LTS
linux-gcp-5.11
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Ubuntu:20.04:LTS
linux-gcp-5.13
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Ubuntu:20.04:LTS
linux-gcp-5.8
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Ubuntu:20.04:LTS
linux-gke
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Ubuntu:20.04:LTS
linux-gke-5.15
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Ubuntu:20.04:LTS
linux-gkeop
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Ubuntu:20.04:LTS
linux-gkeop-5.15
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Ubuntu:20.04:LTS
linux-hwe-5.11
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Ubuntu:20.04:LTS
linux-hwe-5.13
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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
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Ubuntu:20.04:LTS
linux-oem-5.14
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Ubuntu:20.04:LTS
linux-oem-5.6
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Ubuntu:20.04:LTS
linux-oracle-5.11
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Ubuntu:20.04:LTS
linux-oracle-5.13
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Ubuntu:20.04:LTS
linux-oracle-5.8
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Ubuntu:20.04:LTS
linux-raspi2
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Ubuntu:20.04:LTS
linux-riscv
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Ubuntu:20.04:LTS
linux-riscv-5.11
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Ubuntu:20.04:LTS
linux-riscv-5.8
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-fips
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Ubuntu:Pro:FIPS-updates:20.04:LTS
linux-gcp-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-aws-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-azure-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-fips
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Ubuntu:Pro:FIPS:20.04:LTS
linux-gcp-fips
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Ubuntu:22.04:LTS
linux
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Ubuntu:22.04:LTS
linux-allwinner-5.19
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Ubuntu:22.04:LTS
linux-aws
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Ubuntu:22.04:LTS
linux-aws-5.19
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Ubuntu:22.04:LTS
linux-aws-6.2
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Ubuntu:22.04:LTS
linux-aws-6.5
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Ubuntu:22.04:LTS
linux-azure
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Ubuntu:22.04:LTS
linux-azure-5.19
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Ubuntu:22.04:LTS
linux-azure-6.2
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Ubuntu:22.04:LTS
linux-azure-6.5
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Ubuntu:22.04:LTS
linux-azure-fde
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Ubuntu:22.04:LTS
linux-azure-fde-5.19
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Ubuntu:22.04:LTS
linux-azure-fde-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-gcp
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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-gke
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1041.46"}]}]
Ubuntu:22.04:LTS
linux-gkeop
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1027.32"}]}]
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-ibm
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Ubuntu:22.04:LTS
linux-intel-iot-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-intel-iotg
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Ubuntu:22.04:LTS
linux-kvm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1041.46"}]}]
Ubuntu:22.04:LTS
linux-lowlatency
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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
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1032.32"}]}]
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-nvidia-tegra
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1017.17"}]}]
Ubuntu:22.04:LTS
linux-nvidia-tegra-igx
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1004.4"}]}]
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
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1042.48"}]}]
Ubuntu:22.04:LTS
linux-oracle-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-raspi
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1037.40"}]}]
Ubuntu:22.04:LTS
linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-riscv
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-riscv-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-riscv-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-starfive-5.19
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-starfive-6.2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-starfive-6.5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
linux-xilinx-zynqmp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1025.29"}]}]
Ubuntu:Nvidia-BlueField:22.04:LTS
linux-bluefield
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1023.25"}]}]
Ubuntu:Pro:FIPS-preview:22.04:LTS
linux-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:Realtime:22.04:LTS
linux-intel-iot-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1038.40"}]}]
Ubuntu:Pro:Realtime:22.04:LTS
linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1045.50"}]}]
Ubuntu:24.04:LTS
linux-azure-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-gcp-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-hwe-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-intel
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-lowlatency-hwe-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oem-6.11
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-oem-6.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-raspi-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-realtime
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
linux-riscv
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04
linux-nvidia
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Nvidia-BlueField:24.04:LTS
linux-bluefield
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:FIPS-updates:16.04:LTS
linux-fips
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
参照URL
- report ubuntu.com
- report cve.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org