Ubuntu USN-8761-3 Fixes Linux kernel (Azure) Vulnerabilities
Tech GuruQuick Answer
Ubuntu's USN-8761-3 updates linux-azure-6.8 on Ubuntu 22.04 to 6.8.0-1067.75~22.04.1. The fixes span drivers, filesystems, networking, memory management, and other kernel subsystems. A reboot and any required third-party-module rebuilds are part of the update; retain the full ABI warning below.
Confirm Scope And Apply The Supported Fix
What to do now: Locate jammy hosts using the Azure 6.8 kernel, record installed and running versions, prepare module compatibility and recovery access, and schedule the supported update followed by a reboot.
Last verified: 2026-09-21 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | Linux kernel (Azure) vulnerabilities on Ubuntu 22.04 LTS (jammy) |
|---|---|
| Advisory | USN-8761-3 |
| CVEs | CVE-2025-71289, CVE-2026-23469, CVE-2026-31420, CVE-2026-31486, CVE-2026-31560, CVE-2026-46158, CVE-2026-46170, CVE-2026-46275, CVE-2026-46315, CVE-2026-52912, CVE-2026-52915, CVE-2026-52916, CVE-2026-52918, CVE-2026-52919, CVE-2026-52921, CVE-2026-52922, CVE-2026-52926, CVE-2026-52941, CVE-2026-53357, CVE-2026-64015, CVE-2026-64025, CVE-2026-64029, CVE-2026-64032, CVE-2026-64033, CVE-2026-64039, CVE-2026-64046, CVE-2026-64047, CVE-2026-64048, CVE-2026-64051, CVE-2026-64055, CVE-2026-64056, CVE-2026-64064, CVE-2026-64073, CVE-2026-64083, CVE-2026-64084, CVE-2026-64085, CVE-2026-64086, CVE-2026-64087, CVE-2026-64088, CVE-2026-64089, CVE-2026-64092, CVE-2026-64096, CVE-2026-64097, CVE-2026-64098, CVE-2026-64102, CVE-2026-64103, CVE-2026-64106, CVE-2026-64108, CVE-2026-64109, CVE-2026-64111, CVE-2026-64113, CVE-2026-64114, CVE-2026-64115, CVE-2026-64116, CVE-2026-64118, CVE-2026-64121, CVE-2026-64125, CVE-2026-64126, CVE-2026-64127, CVE-2026-64128, CVE-2026-64133, CVE-2026-64134, CVE-2026-64135, CVE-2026-64136, CVE-2026-64137, CVE-2026-64138, CVE-2026-64144, CVE-2026-64147, CVE-2026-64148, CVE-2026-64153, CVE-2026-64155, CVE-2026-64163, CVE-2026-64165, CVE-2026-64166, CVE-2026-64168, CVE-2026-64170, CVE-2026-64173, CVE-2026-64174, CVE-2026-64177, CVE-2026-64178, CVE-2026-64179, CVE-2026-64180, CVE-2026-64182, CVE-2026-64183, CVE-2026-64184, CVE-2026-64185, CVE-2026-64214, CVE-2026-64217, CVE-2026-64218, CVE-2026-64219, CVE-2026-64220, CVE-2026-64221, CVE-2026-64225, CVE-2026-64231, CVE-2026-64518 |
| Authoritative release date | 2026-09-21 13:04:28.084634 UTC |
| Authority revision date | 2026-09-21 13:04:28.084634 UTC |
| Affected versions | The Ubuntu releases and packages enumerated in USN-8761-3: Ubuntu 22.04 LTS (jammy). |
| Fixed version | jammy: linux-azure-6.8 6.8.0-1067.75~22.04.1 |
| CVSS base score | Not provided by the authority |
| CVSS severity | Not provided by the authority |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
Several security issues were fixed in the Linux kernel. After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
What To Validate Now
- Inventory. Identify Ubuntu 22.04 hosts using linux-azure-6.8, including deployed images and their active kernel versions. Record third-party modules and the owners of workloads on those hosts.
- Establish applicability. Match linux-azure-6.8 on jammy to this notice. An Azure platform label alone does not establish applicability to every Ubuntu kernel or release, and the CVE list does not mean every listed subsystem is enabled locally.
- Remediate. Apply jammy: linux-azure-6.8 6.8.0-1067.75~22.04.1 through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. After reboot, confirm the intended fixed Azure kernel is active, required modules load, and storage, networking, and representative workloads operate normally. Retain boot and module-build results.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Use the exact supported release stream and repository. Test dependencies, clusters, integrations, and rollback before broad deployment; a CVSS rating or reachable feature is not evidence of exploitation.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
