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This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-63890 →
Unrated

Vulnerability in linux

UBUNTU-CVE-2026-63890 First seen on SecPulse

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as UBUNTU-CVE-2026-63890 has been found in linux.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux to 5.15.0-1117.124~20.04.1 or later.
If unsure, ask your IT team or search "linux UBUNTU-CVE-2026-63890" on the vendor's site.

UBUNTU-CVE-2026-63890 (linux)
Patched: 5.15.0-1117.124~20.04.1 — 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 linux.

Affected scope

Check the vendor advisory for the affected versions of linux.

Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

How to fix

Update to 5.15.0-1117.124~20.04.1.

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 'linux' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

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

  1. 1
    Identify exposureidentify
    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. 2
    Apply patchpatch
    Upgrade linux to 5.15.0-1117.124~20.04.1

    ステージング環境で 5.15.0-1117.124~20.04.1 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
    Post-deployment verificationverify
    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。

Affected packages

EcosystemPackageAffectedFixed
Ubuntu:Pro:14.04:LTS linux
All versions
—
Ubuntu:Pro:14.04:LTS linux-aws
All versions
—
Ubuntu:Pro:14.04:LTS linux-azure
All versions
—
Ubuntu:Pro:14.04:LTS linux-lts-xenial
All versions
—
Ubuntu:Pro:16.04:LTS linux
All versions
—
Ubuntu:Pro:16.04:LTS linux-aws
All versions
—
Ubuntu:Pro:16.04:LTS linux-aws-hwe
All versions
—
Ubuntu:Pro:16.04:LTS linux-azure
All versions
—
Ubuntu:Pro:16.04:LTS linux-gcp
All versions
—
Ubuntu:Pro:16.04:LTS linux-hwe
All versions
—
Ubuntu:16.04:LTS linux-hwe-edge
All versions
—
Ubuntu:Pro:16.04:LTS linux-kvm
All versions
—
Ubuntu:Pro:16.04:LTS linux-oracle
All versions
—
Ubuntu:Pro:FIPS-updates:16.04:LTS linux-fips
All versions
—
Ubuntu:Pro:FIPS:16.04:LTS linux-fips
All versions
—
Ubuntu:Pro:18.04:LTS linux
All versions
—
Ubuntu:Pro:18.04:LTS linux-aws
All versions
—
Ubuntu:18.04:LTS linux-aws-5.0
All versions
—
Ubuntu:18.04:LTS linux-aws-5.3
All versions
—
Ubuntu:Pro:18.04:LTS linux-aws-5.4
All versions
—
Ubuntu:18.04:LTS linux-azure
All versions
—
Ubuntu:Pro:18.04:LTS linux-azure-4.15
All versions
—
Ubuntu:18.04:LTS linux-azure-5.3
All versions
—
Ubuntu:Pro:18.04:LTS linux-azure-5.4
All versions
—
Ubuntu:18.04:LTS linux-azure-edge
All versions
—
Ubuntu:18.04:LTS linux-gcp
All versions
—
Ubuntu:Pro:18.04:LTS linux-gcp-4.15
All versions
—
Ubuntu:18.04:LTS linux-gcp-5.3
All versions
—
Ubuntu:Pro:18.04:LTS linux-gcp-5.4
All versions
—
Ubuntu:18.04:LTS linux-gke-4.15
All versions
—
Ubuntu:18.04:LTS linux-gke-5.4
All versions
—
Ubuntu:18.04:LTS linux-gkeop-5.4
All versions
—
Ubuntu:18.04:LTS linux-hwe
All versions
—
Ubuntu:Pro:18.04:LTS linux-hwe-5.4
All versions
—
Ubuntu:18.04:LTS linux-hwe-edge
All versions
—
Ubuntu:Pro:18.04:LTS linux-ibm-5.4
All versions
—
Ubuntu:Pro:18.04:LTS linux-kvm
All versions
—
Ubuntu:18.04:LTS linux-oem
All versions
—
Ubuntu:Pro:18.04:LTS linux-oracle
All versions
—
Ubuntu:18.04:LTS linux-oracle-5.0
All versions
—
Ubuntu:18.04:LTS linux-oracle-5.3
All versions
—
Ubuntu:Pro:18.04:LTS linux-oracle-5.4
All versions
—
Ubuntu:Pro:18.04:LTS linux-raspi-5.4
All versions
—
Ubuntu:Pro:FIPS-updates:18.04:LTS linux-aws-fips
All versions
—
Ubuntu:Pro:FIPS-updates:18.04:LTS linux-azure-fips
All versions
—
Ubuntu:Pro:FIPS-updates:18.04:LTS linux-fips
All versions
—
Ubuntu:Pro:FIPS-updates:18.04:LTS linux-gcp-fips
All versions
—
Ubuntu:Pro:FIPS:18.04:LTS linux-aws-fips
All versions
—
Ubuntu:Pro:FIPS:18.04:LTS linux-azure-fips
All versions
—
Ubuntu:Pro:FIPS:18.04:LTS linux-fips
All versions
—
Ubuntu:Pro:FIPS:18.04:LTS linux-gcp-fips
All versions
—
Ubuntu:Pro:20.04:LTS linux
All versions
—
Ubuntu:Pro:20.04:LTS linux-aws
All versions
—
Ubuntu:20.04:LTS linux-aws-5.11
All versions
—
Ubuntu:20.04:LTS linux-aws-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-aws-5.15
< 5.15.0-1117.124~20.04.1
5.15.0-1117.124~20.04.1
Ubuntu:20.04:LTS linux-aws-5.8
All versions
—
Ubuntu:Pro:20.04:LTS linux-azure
All versions
—
Ubuntu:20.04:LTS linux-azure-5.11
All versions
—
Ubuntu:20.04:LTS linux-azure-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-azure-5.15
< 5.15.0-1123.132~20.04.1
5.15.0-1123.132~20.04.1
Ubuntu:20.04:LTS linux-azure-5.8
All versions
—
Ubuntu:20.04:LTS linux-azure-fde
All versions
—
Ubuntu:Pro:20.04:LTS linux-azure-fde-5.15
< 5.15.0-1122.131~20.04.1
5.15.0-1122.131~20.04.1
Ubuntu:Pro:20.04:LTS linux-bluefield
All versions
—
Ubuntu:Pro:20.04:LTS linux-gcp
All versions
—
Ubuntu:20.04:LTS linux-gcp-5.11
All versions
—
Ubuntu:20.04:LTS linux-gcp-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-gcp-5.15
< 5.15.0-1118.128~20.04.1
5.15.0-1118.128~20.04.1
Ubuntu:20.04:LTS linux-gcp-5.8
All versions
—
Ubuntu:20.04:LTS linux-gke
All versions
—
Ubuntu:20.04:LTS linux-gke-5.15
All versions
—
Ubuntu:20.04:LTS linux-gkeop
All versions
—
Ubuntu:20.04:LTS linux-gkeop-5.15
All versions
—
Ubuntu:20.04:LTS linux-hwe-5.11
All versions
—
Ubuntu:20.04:LTS linux-hwe-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-hwe-5.15
< 5.15.0-198.208~20.04.1
5.15.0-198.208~20.04.1
Ubuntu:20.04:LTS linux-hwe-5.8
All versions
—
Ubuntu:Pro:20.04:LTS linux-ibm
All versions
—
Ubuntu:Pro:20.04:LTS linux-ibm-5.15
< 5.15.0-1111.115~20.04.1
5.15.0-1111.115~20.04.1
Ubuntu:20.04:LTS linux-intel-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-intel-iotg-5.15
< 5.15.0-1112.118~20.04.1
5.15.0-1112.118~20.04.1
Ubuntu:Pro:20.04:LTS linux-iot
All versions
—
Ubuntu:Pro:20.04:LTS linux-kvm
All versions
—
Ubuntu:Pro:20.04:LTS linux-lowlatency-hwe-5.15
< 5.15.0-195.205~20.04.1
5.15.0-195.205~20.04.1
Ubuntu:Pro:20.04:LTS linux-nvidia-tegra-5.15
All versions
—
Ubuntu:20.04:LTS linux-oem-5.10
All versions
—
Ubuntu:20.04:LTS linux-oem-5.13
All versions
—
Ubuntu:20.04:LTS linux-oem-5.14
All versions
—
Ubuntu:20.04:LTS linux-oem-5.6
All versions
—
Ubuntu:Pro:20.04:LTS linux-oracle
All versions
—
Ubuntu:20.04:LTS linux-oracle-5.11
All versions
—
Ubuntu:20.04:LTS linux-oracle-5.13
All versions
—
Ubuntu:Pro:20.04:LTS linux-oracle-5.15
< 5.15.0-1114.120~20.04.1
5.15.0-1114.120~20.04.1
Ubuntu:20.04:LTS linux-oracle-5.8
All versions
—
Ubuntu:Pro:20.04:LTS linux-raspi
All versions
—
Ubuntu:20.04:LTS linux-raspi2
All versions
—
Ubuntu:20.04:LTS linux-riscv
All versions
—
Ubuntu:20.04:LTS linux-riscv-5.11
All versions
—
Ubuntu:Pro:20.04:LTS linux-riscv-5.15
< 5.15.0-1111.115~20.04.1
5.15.0-1111.115~20.04.1
Ubuntu:20.04:LTS linux-riscv-5.8
All versions
—
Ubuntu:Pro:20.04:LTS linux-xilinx-zynqmp
All versions
—
Ubuntu:Pro:FIPS-updates:20.04:LTS linux-aws-fips
All versions
—
Ubuntu:Pro:FIPS-updates:20.04:LTS linux-azure-fips
All versions
—
Ubuntu:Pro:FIPS-updates:20.04:LTS linux-fips
All versions
—
Ubuntu:Pro:FIPS-updates:20.04:LTS linux-gcp-fips
All versions
—
Ubuntu:Pro:FIPS:20.04:LTS linux-aws-fips
All versions
—
Ubuntu:Pro:FIPS:20.04:LTS linux-azure-fips
All versions
—
Ubuntu:Pro:FIPS:20.04:LTS linux-fips
All versions
—
Ubuntu:Pro:FIPS:20.04:LTS linux-gcp-fips
All versions
—
Ubuntu:22.04:LTS linux
< 5.15.0-198.208
5.15.0-198.208
Ubuntu:22.04:LTS linux-allwinner-5.19
All versions
—
Ubuntu:22.04:LTS linux-aws
< 5.15.0-1117.124
5.15.0-1117.124
Ubuntu:22.04:LTS linux-aws-5.19
All versions
—
Ubuntu:22.04:LTS linux-aws-6.2
All versions
—
Ubuntu:22.04:LTS linux-aws-6.5
All versions
—
Ubuntu:22.04:LTS linux-aws-6.8
< 6.8.0-1066.69~22.04.1
6.8.0-1066.69~22.04.1
Ubuntu:22.04:LTS linux-azure
< 5.15.0-1123.132
5.15.0-1123.132
Ubuntu:22.04:LTS linux-azure-5.19
All versions
—
Ubuntu:22.04:LTS linux-azure-6.2
All versions
—
Ubuntu:22.04:LTS linux-azure-6.5
All versions
—
Ubuntu:22.04:LTS linux-azure-6.8
< 6.8.0-1070.78~22.04.1
6.8.0-1070.78~22.04.1
Ubuntu:22.04:LTS linux-azure-fde
All versions
—
Ubuntu:22.04:LTS linux-azure-fde-5.19
All versions
—
Ubuntu:22.04:LTS linux-azure-fde-6.2
All versions
—
Ubuntu:22.04:LTS linux-azure-fde-6.8
< 6.8.0-1068.75~22.04.1
6.8.0-1068.75~22.04.1
Ubuntu:22.04:LTS linux-gcp
< 5.15.0-1118.128
5.15.0-1118.128
Ubuntu:22.04:LTS linux-gcp-5.19
All versions
—
Ubuntu:22.04:LTS linux-gcp-6.2
All versions
—
Ubuntu:22.04:LTS linux-gcp-6.5
All versions
—
Ubuntu:22.04:LTS linux-gcp-6.8
< 6.8.0-1070.78~22.04.1
6.8.0-1070.78~22.04.1
Ubuntu:22.04:LTS linux-gke
< 5.15.0-1113.119
5.15.0-1113.119
Ubuntu:22.04:LTS linux-gkeop
< 5.15.0-1100.108
5.15.0-1100.108
Ubuntu:22.04:LTS linux-hwe-5.19
All versions
—
Ubuntu:22.04:LTS linux-hwe-6.2
All versions
—
Ubuntu:22.04:LTS linux-hwe-6.5
All versions
—
Ubuntu:22.04:LTS linux-hwe-6.8
All versions
—
Ubuntu:22.04:LTS linux-ibm
< 5.15.0-1111.115
5.15.0-1111.115
Ubuntu:22.04:LTS linux-ibm-6.8
< 6.8.0-1066.67~22.04.1
6.8.0-1066.67~22.04.1
Ubuntu:22.04:LTS linux-intel-iot-realtime
All versions
—
Ubuntu:22.04:LTS linux-intel-iotg
< 5.15.0-1112.118
5.15.0-1112.118
Ubuntu:22.04:LTS linux-kvm
< 5.15.0-1109.114
5.15.0-1109.114
Ubuntu:22.04:LTS linux-lowlatency
< 5.15.0-195.205
5.15.0-195.205
Ubuntu:22.04:LTS linux-lowlatency-hwe-5.19
All versions
—
Ubuntu:22.04:LTS linux-lowlatency-hwe-6.2
All versions
—
Ubuntu:22.04:LTS linux-lowlatency-hwe-6.5
All versions
—
Ubuntu:22.04:LTS linux-lowlatency-hwe-6.8
< 6.8.0-146.146.1~22.04.1
6.8.0-146.146.1~22.04.1
Ubuntu:22.04:LTS linux-nvidia
< 5.15.0-1112.113
5.15.0-1112.113
Ubuntu:22.04:LTS linux-nvidia-6.2
All versions
—
Ubuntu:22.04:LTS linux-nvidia-6.5
All versions
—
Ubuntu:22.04:LTS linux-nvidia-6.8
< 6.8.0-1064.67~22.04.1
6.8.0-1064.67~22.04.1
Ubuntu:22.04:LTS linux-nvidia-tegra
All versions
—
Ubuntu:22.04:LTS linux-nvidia-tegra-igx
All versions
—
Ubuntu:22.04:LTS linux-oem-5.17
All versions
—
Ubuntu:22.04:LTS linux-oem-6.0
All versions
—
Ubuntu:22.04:LTS linux-oem-6.1
All versions
—
Ubuntu:22.04:LTS linux-oem-6.5
All versions
—
Ubuntu:22.04:LTS linux-oracle
< 5.15.0-1114.120
5.15.0-1114.120
Ubuntu:22.04:LTS linux-oracle-6.5
All versions
—
Ubuntu:22.04:LTS linux-oracle-6.8
All versions
—
Ubuntu:22.04:LTS linux-raspi
All versions
—
Ubuntu:22.04:LTS linux-realtime
All versions
—
Ubuntu:22.04:LTS linux-riscv
All versions
—
Ubuntu:22.04:LTS linux-riscv-5.19
All versions
—
Ubuntu:22.04:LTS linux-riscv-6.5
All versions
—
Ubuntu:22.04:LTS linux-riscv-6.8
< 6.8.0-146.146~22.04.1
6.8.0-146.146~22.04.1
Ubuntu:22.04:LTS linux-starfive-5.19
All versions
—
Ubuntu:22.04:LTS linux-starfive-6.2
All versions
—
Ubuntu:22.04:LTS linux-starfive-6.5
All versions
—
Ubuntu:22.04:LTS linux-xilinx-zynqmp
< 5.15.0-1080.84
5.15.0-1080.84
Ubuntu:Nvidia-BlueField:22.04:LTS linux-bluefield
< 5.15.0-1101.103
5.15.0-1101.103
Ubuntu:Pro:Realtime:22.04:LTS linux-intel-iot-realtime
< 5.15.0-1109.111
5.15.0-1109.111
Ubuntu:Pro:Realtime:22.04:LTS linux-realtime
< 5.15.0-1116.125
5.15.0-1116.125
Ubuntu:Pro:Realtime:22.04:LTS linux-realtime-6.8
< 6.8.1-1061.62~22.04.1
6.8.1-1061.62~22.04.1
Ubuntu:Pro:FIPS-preview:22.04:LTS linux-aws-fips
All versions
—
Ubuntu:Pro:FIPS-preview:22.04:LTS linux-azure-fips
All versions
—
Ubuntu:Pro:FIPS-preview:22.04:LTS linux-fips
All versions
—
Ubuntu:Pro:FIPS-preview:22.04:LTS linux-gcp-fips
All versions
—
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-aws-fips
< 5.15.0-1117.124+fips1
5.15.0-1117.124+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-azure-fips
< 5.15.0-1123.132+fips1
5.15.0-1123.132+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-fips
< 5.15.0-198.208+fips1
5.15.0-198.208+fips1
Ubuntu:Pro:FIPS-updates:22.04:LTS linux-gcp-fips
< 5.15.0-1118.128+fips1
5.15.0-1118.128+fips1
Ubuntu:24.04:LTS linux
< 6.8.0-146.146
6.8.0-146.146
Ubuntu:24.04:LTS linux-aws
< 6.8.0-1066.69
6.8.0-1066.69
Ubuntu:24.04:LTS linux-aws-6.14
All versions
—
Ubuntu:24.04:LTS linux-aws-6.17
All versions
—
Ubuntu:24.04:LTS linux-azure
< 6.8.0-1070.78
6.8.0-1070.78
Ubuntu:24.04:LTS linux-azure-6.11
All versions
—
Ubuntu:24.04:LTS linux-azure-6.14
All versions
—
Ubuntu:24.04:LTS linux-azure-6.17
All versions
—
Ubuntu:24.04:LTS linux-azure-7.0
< 7.0.0-1014.14~24.04.1
7.0.0-1014.14~24.04.1
Ubuntu:24.04:LTS linux-azure-fde
< 6.8.0-1068.75
6.8.0-1068.75
Ubuntu:24.04:LTS linux-azure-fde-6.14
All versions
—
Ubuntu:24.04:LTS linux-azure-fde-6.17
All versions
—
Ubuntu:24.04:LTS linux-azure-fde-7.0
All versions
—
Ubuntu:24.04:LTS linux-azure-nvidia
All versions
—
Ubuntu:24.04:LTS linux-azure-nvidia-6.14
All versions
—
Ubuntu:24.04:LTS linux-gcp
< 6.8.0-1070.78
6.8.0-1070.78
Ubuntu:24.04:LTS linux-gcp-6.11
All versions
—
Ubuntu:24.04:LTS linux-gcp-6.14
All versions
—
Ubuntu:24.04:LTS linux-gcp-6.17
All versions
—
Ubuntu:24.04:LTS linux-gcp-7.0
< 7.0.0-1011.11~24.04.1
7.0.0-1011.11~24.04.1
Ubuntu:24.04:LTS linux-gke
< 6.8.0-1065.73
6.8.0-1065.73
Ubuntu:24.04:LTS linux-gkeop
< 6.8.0-1051.55
6.8.0-1051.55
Ubuntu:24.04:LTS linux-hwe-6.11
All versions
—
Ubuntu:24.04:LTS linux-hwe-6.14
All versions
—
Ubuntu:24.04:LTS linux-hwe-6.17
All versions
—
Ubuntu:24.04:LTS linux-hwe-7.0
< 7.0.0-28.28~24.04.1
7.0.0-28.28~24.04.1
Ubuntu:24.04:LTS linux-ibm
< 6.8.0-1066.67
6.8.0-1066.67
Ubuntu:24.04:LTS linux-lowlatency
< 6.8.0-146.146.1
6.8.0-146.146.1
Ubuntu:24.04:LTS linux-lowlatency-hwe-6.11
All versions
—
Ubuntu:24.04:LTS linux-nvidia
< 6.8.0-1064.67
6.8.0-1064.67
Ubuntu:24.04:LTS linux-nvidia-6.11
All versions
—
Ubuntu:24.04:LTS linux-nvidia-6.17
All versions
—
Ubuntu:24.04:LTS linux-nvidia-7.0
< 7.0.0-1016.16~24.04.1
7.0.0-1016.16~24.04.1
Ubuntu:24.04:LTS linux-nvidia-lowlatency
< 6.8.0-1064.67.1
6.8.0-1064.67.1
Ubuntu:24.04:LTS linux-nvidia-tegra
All versions
—
Ubuntu:24.04:LTS linux-oem-6.11
All versions
—
Ubuntu:24.04:LTS linux-oem-6.14
All versions
—
Ubuntu:24.04:LTS linux-oem-6.17
All versions
—
Ubuntu:24.04:LTS linux-oem-6.8
All versions
—
Ubuntu:24.04:LTS linux-oracle
< 6.8.0-1063.66
6.8.0-1063.66
Ubuntu:24.04:LTS linux-oracle-6.14
All versions
—
Ubuntu:24.04:LTS linux-oracle-6.17
All versions
—
Ubuntu:24.04:LTS linux-oracle-7.0
< 7.0.0-1011.11~24.04.1
7.0.0-1011.11~24.04.1
Ubuntu:24.04:LTS linux-raspi
All versions
—
Ubuntu:24.04:LTS linux-raspi-realtime
All versions
—
Ubuntu:24.04:LTS linux-realtime
All versions
—
Ubuntu:24.04:LTS linux-riscv
All versions
—
Ubuntu:24.04:LTS linux-riscv-6.14
All versions
—
Ubuntu:24.04:LTS linux-riscv-6.17
All versions
—
Ubuntu:24.04:LTS linux-riscv-7.0
< 7.0.0-28.28.1~24.04.3
7.0.0-28.28.1~24.04.3
Ubuntu:24.04:LTS linux-xilinx
All versions
—
Ubuntu:Nvidia-BlueField:24.04:LTS linux-bluefield
< 6.8.0-1032.37
6.8.0-1032.37
Ubuntu:Pro:Realtime:24.04:LTS linux-raspi-realtime
All versions
—
Ubuntu:Pro:Realtime:24.04:LTS linux-realtime
< 6.8.1-1061.62
6.8.1-1061.62
Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.14
All versions
—
Ubuntu:Pro:Realtime:24.04:LTS linux-realtime-6.17
All versions
—
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-aws-fips
< 6.8.0-1066.69+fips1
6.8.0-1066.69+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-azure-fips
< 6.8.0-1069.77+fips1
6.8.0-1069.77+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-fips
< 6.8.0-146.146+fips1
6.8.0-146.146+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS linux-gcp-fips
< 6.8.0-1070.78+fips1
6.8.0-1070.78+fips1
Ubuntu:26.04:LTS linux
< 7.0.0-28.28
7.0.0-28.28
Ubuntu:26.04:LTS linux-aws
< 7.0.0-1009.9
7.0.0-1009.9
Ubuntu:26.04:LTS linux-azure
< 7.0.0-1010.10
7.0.0-1010.10
Ubuntu:26.04:LTS linux-azure-fde
< 7.0.0-1009.9
7.0.0-1009.9
Ubuntu:26.04:LTS linux-gcp
< 7.0.0-1008.8
7.0.0-1008.8
Ubuntu:26.04:LTS linux-gke
< 7.0.0-1003.4
7.0.0-1003.4
Ubuntu:26.04:LTS linux-ibm
< 7.0.0-1010.10
7.0.0-1010.10
Ubuntu:26.04:LTS linux-nvidia
< 7.0.0-1016.16
7.0.0-1016.16
Ubuntu:26.04:LTS linux-nvidia-bos
< 7.0.0-2016.16
7.0.0-2016.16
Ubuntu:26.04:LTS linux-oem-7.0
< 7.0.0-1009.9
7.0.0-1009.9
Ubuntu:26.04:LTS linux-oracle
< 7.0.0-1008.8
7.0.0-1008.8
Ubuntu:26.04:LTS linux-raspi
< 7.0.0-1015.15
7.0.0-1015.15
Ubuntu:26.04:LTS linux-realtime
< 7.0.0-28.28.1
7.0.0-28.28.1
Ubuntu:26.04:LTS linux-riscv
< 7.0.0-28.28.1
7.0.0-28.28.1
Original description The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved: scsi: fcoe: Reject FIP descriptors with zero fip_dlen in CVL walker drivers/scsi/fcoe/fcoe_ctlr.c::fcoe_ctlr_recv_clr_vlink() advanced the descriptor cursor by an attacker-supplied fip_dlen without ever requiring dlen >= sizeof(struct fip_desc) in the default branch. The named descriptor cases (FIP_DT_MAC, FIP_DT_NAME, FIP_DT_VN_ID) checked their per-type minimum lengths, but a FIP_DT_NON_CRITICAL descriptor (fip_dtype >= 128, which the standard requires receivers to silently ignore) skipped that check entirely. An unauthenticated L2 peer on the FCoE control VLAN could hang fcoe_ctlr_recv_work on an fcoe, qedf, or bnx2fc initiator indefinitely by emitting one FIP CVL frame whose single descriptor had fip_dtype == FIP_DT_NON_CRITICAL and fip_dlen == 0: the cursor advanced zero bytes per iteration and the loop condition rlen >= sizeof(*desc) stayed true forever, blocking every subsequent FIP frame on that controller. Tighten the outer dlen guard to also reject dlen < sizeof(struct fip_desc), so a malformed descriptor whose length cannot even cover the descriptor header is rejected before the switch. This is the same lower-bound the named cases already apply and is the minimum scope that closes the loop.

Source: OSV.dev (Open Source Vulnerabilities) OSV

References

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