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-2026-63949 has been found in linux-hwe-edge.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux-hwe-edge to 6.8.0-1066.69~22.04.1 or later.
If unsure, ask your IT team or search "linux-hwe-edge UBUNTU-CVE-2026-63949" on the vendor's site.
UBUNTU-CVE-2026-63949 (linux-hwe-edge)
Patched: 6.8.0-1066.69~22.04.1 — 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 6.8.0-1066.69~22.04.1.
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 6.8.0-1066.69~22.04.1ステージング環境で 6.8.0-1066.69~22.04.1 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: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: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: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:20.04:LTS | linux-hwe-5.8 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-intel-5.13 |
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:20.04:LTS | linux-oracle-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oracle-5.13 |
All versions |
— |
| 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:20.04:LTS | linux-riscv-5.8 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 |
All versions |
— |
| 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-5.19 |
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-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-5.19 |
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-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-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-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-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-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-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.8 |
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: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: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: auxdisplay: line-display: fix OOB read on zero-length message_store() linedisp_display() unconditionally reads msg[count - 1] before checking whether count is zero, so a write of zero bytes to the message sysfs attribute hits msg[-1]: write(fd, "", 0); -> message_store(..., buf, count=0) -> linedisp_display(linedisp, buf, count=0) -> msg[count - 1] == '\n' ; OOB read The kernfs write buffer for that store is a 1-byte allocation (kernfs_fop_write_iter() does kmalloc(len + 1) with len == 0), so msg[-1] is a 1-byte read before the slab object. On a KASAN-enabled kernel this trips an out-of-bounds report and panics; on stock kernels it silently reads adjacent slab data and, if that byte happens to be '\n', the following count-- wraps ssize_t 0 to -1 and is then passed to kmemdup_nul(). linedisp_display() is reached from the message_store() sysfs callback (drivers/auxdisplay/line-display.c message attribute, mode 0644) and from the in-tree initial-message setup with count == -1, so the OOB path is only userspace-triggerable via zero-byte writes; vfs_write() does not short-circuit on count == 0 and kernfs_fop_write_iter() dispatches the store callback regardless. Guard the trailing-newline trim with a count check. The existing if (!count) block then takes the clear-display path unchanged. Affects every auxdisplay driver that registers via linedisp_register() / linedisp_attach(): ht16k33, max6959, img-…
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
- report ubuntu.com
- report cve.org
- report git.kernel.org