Vulnerability in linux-hwe-edge
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-2026-63984 has been found in linux-hwe-edge.
Successful exploitation can lead to full system takeover.
What to do: upgrade linux-hwe-edge to 5.15.0-1116.123~20.04.1 or later.
If unsure, ask your IT team or search "linux-hwe-edge UBUNTU-CVE-2026-63984" on the vendor's site.
UBUNTU-CVE-2026-63984 (linux-hwe-edge)
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 5.15.0-1116.123~20.04.1 — 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.
A vulnerability (unclassified) exists in linux-hwe-edge.
Check the vendor advisory for the affected versions of linux-hwe-edge.
Severity: ?. Successful exploitation can lead to full system takeover.
Update to 5.15.0-1116.123~20.04.1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'linux-hwe-edge' . 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
Identify exposureidentify
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
Apply patchpatch
Upgrade linux-hwe-edge to 5.15.0-1116.123~20.04.1ステージング環境で 5.15.0-1116.123~20.04.1 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
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
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Ubuntu:16.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:18.04:LTS | linux-aws-5.0 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-aws-5.3 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:18.04:LTS | linux-azure-5.3 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-azure-edge |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gcp |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gcp-5.3 |
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:18.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oem |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oracle-5.0 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oracle-5.3 |
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 |
< 5.15.0-1116.123~20.04.1 |
5.15.0-1116.123~20.04.1 |
| Ubuntu:20.04:LTS | linux-aws-5.8 |
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 |
< 5.15.0-1122.131~20.04.1 |
5.15.0-1122.131~20.04.1 |
| 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 |
< 5.15.0-1121.130~20.04.1 |
5.15.0-1121.130~20.04.1 |
| 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 |
< 5.15.0-194.204~20.04.1 |
5.15.0-194.204~20.04.1 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-ibm-5.15 |
< 5.15.0-1110.114~20.04.1 |
5.15.0-1110.114~20.04.1 |
| Ubuntu:20.04:LTS | linux-intel-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-intel-iotg-5.15 |
< 5.15.0-1111.117~20.04.1 |
5.15.0-1111.117~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-lowlatency-hwe-5.15 |
< 5.15.0-194.204~20.04.1 |
5.15.0-194.204~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-nvidia-tegra-5.15 |
< 5.15.0-1068.70~20.04.1 |
5.15.0-1068.70~20.04.1 |
| 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: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: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 |
< 5.15.0-1110.114~20.04.1 |
5.15.0-1110.114~20.04.1 |
| Ubuntu:20.04:LTS | linux-riscv-5.8 |
All versions |
— |
| Ubuntu:22.04:LTS | linux |
< 5.15.0-194.204 |
5.15.0-194.204 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws |
< 5.15.0-1116.123 |
5.15.0-1116.123 |
| 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 |
< 6.8.0-1065.68~22.04.1 |
6.8.0-1065.68~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure |
< 5.15.0-1122.131 |
5.15.0-1122.131 |
| 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 |
< 6.8.0-1068.76~22.04.1 |
6.8.0-1068.76~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure-fde |
< 5.15.0-1121.130 |
5.15.0-1121.130 |
| 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 |
< 6.8.0-1066.73~22.04.1 |
6.8.0-1066.73~22.04.1 |
| Ubuntu:22.04:LTS | linux-gcp |
< 5.15.0-1117.127 |
5.15.0-1117.127 |
| 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 |
< 6.8.0-1069.77~22.04.1 |
6.8.0-1069.77~22.04.1 |
| Ubuntu:22.04:LTS | linux-gke |
< 5.15.0-1112.118 |
5.15.0-1112.118 |
| Ubuntu:22.04:LTS | linux-gkeop |
< 5.15.0-1099.107 |
5.15.0-1099.107 |
| 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 |
< 5.15.0-1110.114 |
5.15.0-1110.114 |
| 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 |
< 5.15.0-1111.117 |
5.15.0-1111.117 |
| Ubuntu:22.04:LTS | linux-kvm |
< 5.15.0-1108.113 |
5.15.0-1108.113 |
| Ubuntu:22.04:LTS | linux-lowlatency |
< 5.15.0-194.204 |
5.15.0-194.204 |
| 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 |
< 6.8.0-142.142.1~22.04.1 |
6.8.0-142.142.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia |
< 5.15.0-1111.112 |
5.15.0-1111.112 |
| 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 |
< 6.8.0-1063.66~22.04.1 |
6.8.0-1063.66~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra |
< 5.15.0-1068.70 |
5.15.0-1068.70 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx |
< 5.15.0-1057.57 |
5.15.0-1057.57 |
| 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 |
< 5.15.0-1113.119 |
5.15.0-1113.119 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.8 |
< 6.8.0-1062.65~22.04.1 |
6.8.0-1062.65~22.04.1 |
| Ubuntu:22.04:LTS | linux-raspi |
< 5.15.0-1110.113 |
5.15.0-1110.113 |
| 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 |
< 6.8.0-142.142~22.04.1 |
6.8.0-142.142~22.04.1 |
| 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 |
< 5.15.0-1079.83 |
5.15.0-1079.83 |
| Ubuntu:Nvidia-BlueField:22.04:LTS | linux-bluefield |
< 5.15.0-1100.102 |
5.15.0-1100.102 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-intel-iot-realtime |
< 5.15.0-1108.110 |
5.15.0-1108.110 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime |
< 5.15.0-1115.124 |
5.15.0-1115.124 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime-6.8 |
< 6.8.1-1060.61~22.04.1 |
6.8.1-1060.61~22.04.1 |
| 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 |
< 5.15.0-1116.123+fips1 |
5.15.0-1116.123+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-azure-fips |
< 5.15.0-1122.131+fips1 |
5.15.0-1122.131+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-fips |
< 5.15.0-194.204+fips1 |
5.15.0-194.204+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-gcp-fips |
< 5.15.0-1116.126+fips1 |
5.15.0-1116.126+fips1 |
| Ubuntu:24.04:LTS | linux |
< 6.8.0-142.142 |
6.8.0-142.142 |
| Ubuntu:24.04:LTS | linux-aws |
< 6.8.0-1065.68 |
6.8.0-1065.68 |
| 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 |
< 6.8.0-1068.76 |
6.8.0-1068.76 |
| 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 |
< 6.8.0-1066.73 |
6.8.0-1066.73 |
| 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 |
< 6.8.0-1069.77 |
6.8.0-1069.77 |
| 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 |
< 6.8.0-1064.72 |
6.8.0-1064.72 |
| Ubuntu:24.04:LTS | linux-gkeop |
< 6.8.0-1050.54 |
6.8.0-1050.54 |
| 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 |
< 6.8.0-1065.66 |
6.8.0-1065.66 |
| Ubuntu:24.04:LTS | linux-lowlatency |
< 6.8.0-142.142.1 |
6.8.0-142.142.1 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-nvidia |
< 6.8.0-1063.66 |
6.8.0-1063.66 |
| 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 |
< 6.8.0-1063.66.1 |
6.8.0-1063.66.1 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra |
< 6.8.0-1035.38 |
6.8.0-1035.38 |
| 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 |
< 6.8.0-1062.65 |
6.8.0-1062.65 |
| 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 |
< 6.8.0-1065.69 |
6.8.0-1065.69 |
| 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 |
< 6.8.0-1031.36 |
6.8.0-1031.36 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-raspi-realtime |
< 6.8.0-2054.56 |
6.8.0-2054.56 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-realtime |
< 6.8.1-1060.61 |
6.8.1-1060.61 |
| 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 |
< 6.8.0-1065.68+fips1 |
6.8.0-1065.68+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-azure-fips |
< 6.8.0-1068.76+fips1 |
6.8.0-1068.76+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-fips |
< 6.8.0-142.142+fips1 |
6.8.0-142.142+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-gcp-fips |
< 6.8.0-1068.76+fips1 |
6.8.0-1068.76+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: ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress() ipv6_rpl_srh_decompress() computes: outhdr->hdrlen = (((n + 1) * sizeof(struct in6_addr)) >> 3); hdrlen is __u8. For n >= 127 the result exceeds 255 and silently truncates. With n=127 (cmpri=15, cmpre=15, pad=0, hdrlen=16): (128 * 16) >> 3 = 256, truncated to 0 as __u8 The caller in ipv6_rpl_srh_rcv() then places the compressed header at buf + ((ohdr->hdrlen + 1) << 3). With hdrlen=0 this is buf + 8, but the decompressed region occupies buf[0..2055] (8-byte header plus 128 full addresses). The compressed header overlaps the decompressed data, and ipv6_rpl_srh_compress() writes into this overlap, corrupting the routing header of the forwarded packet. The existing guard at exthdrs.c:546 checks (n + 1) > 255, which prevents n+1 from overflowing unsigned char (the segments_left field), but does not prevent the computed hdrlen from overflowing __u8. n=127 passes because 128 <= 255, yet hdrlen=256 does not fit. Tighten the bound to (n + 1) > 127. This caps n at 126, giving hdrlen = (127 * 16) >> 3 = 254, which fits in __u8. The compressed header then lands at buf + ((254 + 1) << 3) = buf + 2040, exactly past the decompressed region (buf[0..2039]). No overlap. 127 segments is well beyond any realistic RPL deployment.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
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- report ubuntu.com
- report cve.org
- report git.kernel.org