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-2025-21839 has been found in linux-hwe-edge.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux-hwe-edge to 5.15.0-1088.95~20.04.1 or later.
If unsure, ask your IT team or search "linux-hwe-edge UBUNTU-CVE-2025-21839" on the vendor's site.
UBUNTU-CVE-2025-21839 (linux-hwe-edge)
Attack vector: local / no user interaction
Patched: 5.15.0-1088.95~20.04.1 — 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: ?. Risk of unauthorized operations or information disclosure.
Update to 5.15.0-1088.95~20.04.1.
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 5.15.0-1088.95~20.04.1ステージング環境で 5.15.0-1088.95~20.04.1 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 |
< 5.15.0-1088.95~20.04.1 |
5.15.0-1088.95~20.04.1 |
| 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 |
< 5.15.0-1094.103~20.04.1 |
5.15.0-1094.103~20.04.1 |
| Ubuntu:20.04:LTS | linux-azure-5.8 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-azure-fde |
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 |
< 5.15.0-1087.96~20.04.2 |
5.15.0-1087.96~20.04.2 |
| 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 |
< 5.15.0-144.157~20.04.1 |
5.15.0-144.157~20.04.1 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-ibm-5.15 |
< 5.15.0-1080.83~20.04.1 |
5.15.0-1080.83~20.04.1 |
| Ubuntu:20.04:LTS | linux-intel-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-intel-iotg-5.15 |
< 5.15.0-1083.89~20.04.1 |
5.15.0-1083.89~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-lowlatency-hwe-5.15 |
< 5.15.0-144.157~20.04.1 |
5.15.0-144.157~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-nvidia-tegra-5.15 |
< 5.15.0-1041.41~20.04.1 |
5.15.0-1041.41~20.04.1 |
| 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 |
< 5.15.0-1085.91~20.04.3 |
5.15.0-1085.91~20.04.3 |
| 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 |
< 5.15.0-1083.87~20.04.1 |
5.15.0-1083.87~20.04.1 |
| Ubuntu:20.04:LTS | linux-riscv-5.8 |
All versions |
— |
| Ubuntu:22.04:LTS | linux |
< 5.15.0-144.157 |
5.15.0-144.157 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws |
< 5.15.0-1088.95 |
5.15.0-1088.95 |
| 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 |
< 6.8.0-1035.37~22.04.1 |
6.8.0-1035.37~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure |
< 5.15.0-1094.103 |
5.15.0-1094.103 |
| 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 |
< 6.8.0-1034.39~22.04.1 |
6.8.0-1034.39~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure-fde |
< 5.15.0-1094.103.1 |
5.15.0-1094.103.1 |
| 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-gcp |
< 5.15.0-1087.96 |
5.15.0-1087.96 |
| 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 |
< 6.8.0-1036.38~22.04.1 |
6.8.0-1036.38~22.04.1 |
| Ubuntu:22.04:LTS | linux-gke |
< 5.15.0-1085.91 |
5.15.0-1085.91 |
| Ubuntu:22.04:LTS | linux-gkeop |
< 5.15.0-1070.78 |
5.15.0-1070.78 |
| 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 |
< 6.8.0-78.78~22.04.1 |
6.8.0-78.78~22.04.1 |
| Ubuntu:22.04:LTS | linux-ibm |
< 5.15.0-1080.83 |
5.15.0-1080.83 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 |
< 6.8.0-1033.33~22.04.1 |
6.8.0-1033.33~22.04.1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime |
All versions |
— |
| Ubuntu:22.04:LTS | linux-intel-iotg |
< 5.15.0-1083.89 |
5.15.0-1083.89 |
| Ubuntu:22.04:LTS | linux-kvm |
< 5.15.0-1084.89 |
5.15.0-1084.89 |
| Ubuntu:22.04:LTS | linux-lowlatency |
< 5.15.0-144.157 |
5.15.0-144.157 |
| 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 |
< 6.8.0-78.78.1~22.04.1 |
6.8.0-78.78.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia |
< 5.15.0-1082.83 |
5.15.0-1082.83 |
| 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 |
< 6.8.0-1035.38~22.04.1 |
6.8.0-1035.38~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra |
< 5.15.0-1041.41 |
5.15.0-1041.41 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx |
< 5.15.0-1030.30 |
5.15.0-1030.30 |
| 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 |
< 5.15.0-1085.91 |
5.15.0-1085.91 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.8 |
< 6.8.0-1032.33~22.04.1 |
6.8.0-1032.33~22.04.1 |
| Ubuntu:22.04:LTS | linux-raspi |
< 5.15.0-1083.86 |
5.15.0-1083.86 |
| 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 |
< 6.8.0-78.78~22.04.1 |
6.8.0-78.78~22.04.1 |
| 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 |
< 5.15.0-1052.56 |
5.15.0-1052.56 |
| Ubuntu:Nvidia-BlueField:22.04:LTS | linux-bluefield |
< 5.15.0-1072.74 |
5.15.0-1072.74 |
| 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 |
< 5.15.0-1088.95+fips1 |
5.15.0-1088.95+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-azure-fips |
< 5.15.0-1094.103+fips1 |
5.15.0-1094.103+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-fips |
< 5.15.0-144.157+fips1 |
5.15.0-144.157+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-gcp-fips |
< 5.15.0-1087.96+fips1 |
5.15.0-1087.96+fips1 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-intel-iot-realtime |
< 5.15.0-1081.83 |
5.15.0-1081.83 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime |
< 5.15.0-1088.97 |
5.15.0-1088.97 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime-6.8 |
< 6.8.1-1030.31~22.04.1 |
6.8.1-1030.31~22.04.1 |
| Ubuntu:24.04:LTS | linux |
< 6.8.0-78.78 |
6.8.0-78.78 |
| Ubuntu:24.04:LTS | linux-aws |
< 6.8.0-1035.37 |
6.8.0-1035.37 |
| Ubuntu:24.04:LTS | linux-azure |
< 6.8.0-1034.39 |
6.8.0-1034.39 |
| Ubuntu:24.04:LTS | linux-azure-6.11 |
< 6.11.0-1015.15~24.04.1 |
6.11.0-1015.15~24.04.1 |
| Ubuntu:24.04:LTS | linux-azure-nvidia |
< 6.8.0-1022.23 |
6.8.0-1022.23 |
| Ubuntu:24.04:LTS | linux-gcp |
< 6.8.0-1036.38 |
6.8.0-1036.38 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 |
< 6.11.0-1015.15~24.04.1 |
6.11.0-1015.15~24.04.1 |
| Ubuntu:24.04:LTS | linux-gke |
< 6.8.0-1032.36 |
6.8.0-1032.36 |
| Ubuntu:24.04:LTS | linux-gkeop |
< 6.8.0-1019.21 |
6.8.0-1019.21 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 |
< 6.11.0-26.26~24.04.1 |
6.11.0-26.26~24.04.1 |
| Ubuntu:24.04:LTS | linux-ibm |
< 6.8.0-1033.33 |
6.8.0-1033.33 |
| Ubuntu:24.04:LTS | linux-intel |
All versions |
— |
| Ubuntu:24.04:LTS | linux-lowlatency |
< 6.8.0-78.78.1 |
6.8.0-78.78.1 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 |
< 6.11.0-1014.15~24.04.1 |
6.11.0-1014.15~24.04.1 |
| Ubuntu:24.04:LTS | linux-nvidia |
< 6.8.0-1035.38 |
6.8.0-1035.38 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 |
< 6.11.0-1010.10 |
6.11.0-1010.10 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency |
< 6.8.0-1035.38.1 |
6.8.0-1035.38.1 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra |
< 6.8.0-1009.9 |
6.8.0-1009.9 |
| Ubuntu:24.04:LTS | linux-oem-6.11 |
< 6.11.0-1022.22 |
6.11.0-1022.22 |
| Ubuntu:24.04:LTS | linux-oem-6.8 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-oracle |
< 6.8.0-1032.33 |
6.8.0-1032.33 |
| Ubuntu:24.04:LTS | linux-raspi |
< 6.8.0-1035.39 |
6.8.0-1035.39 |
| 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-xilinx |
< 6.8.0-1017.18 |
6.8.0-1017.18 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-fips |
< 6.8.0-78.78+fips1 |
6.8.0-78.78+fips1 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-raspi-realtime |
< 6.8.0-2028.29 |
6.8.0-2028.29 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-realtime |
< 6.8.1-1030.31 |
6.8.1-1030.31 |
| Ubuntu:26.04 | linux-nvidia |
All versions |
— |
| Ubuntu:Nvidia-BlueField:24.04:LTS | linux-bluefield |
All versions |
— |
Original description The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop Move the conditional loading of hardware DR6 with the guest's DR6 value out of the core .vcpu_run() loop to fix a bug where KVM can load hardware with a stale vcpu->arch.dr6. When the guest accesses a DR and host userspace isn't debugging the guest, KVM disables DR interception and loads the guest's values into hardware on VM-Enter and saves them on VM-Exit. This allows the guest to access DRs at will, e.g. so that a sequence of DR accesses to configure a breakpoint only generates one VM-Exit. For DR0-DR3, the logic/behavior is identical between VMX and SVM, and also identical between KVM_DEBUGREG_BP_ENABLED (userspace debugging the guest) and KVM_DEBUGREG_WONT_EXIT (guest using DRs), and so KVM handles loading DR0-DR3 in common code, outside of the core kvm_x86_ops.vcpu_run() loop. But for DR6, the guest's value doesn't need to be loaded into hardware for KVM_DEBUGREG_BP_ENABLED, and SVM provides a dedicated VMCB field whereas VMX requires software to manually load the guest value, and so loading the guest's value into DR6 is handled by {svm,vmx}_vcpu_run(), i.e. is done inside the core run loop. Unfortunately, saving the guest values on VM-Exit is initiated by common x86, again outside of the core run loop. If the guest modifies DR6 (in hardware, when DR interception is disabled), and then the next VM-Exit is a fastpath VM-Exit,…
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org