Ubuntu USN-8886-1: Linux Kernel Multiple Architecture Security Patch (CVE-2026-97509 et al.)

Vulnerability Overview Vulnerability ID: USN-8886-1 Publication Date: October 6, 2026 Affected Systems: Linux Kernel (NVIDIA Tegra) Vulnerability Description: Several security issues were discovered in the Linux kernel that an attacker could exploit to compromise the system. This update fixes security issues in the following subsystems: - NVDIMM (Non-Volatile Memory Device) driver - Handshake API - ARM32 architecture - ARM64 architecture - MIPS architecture - OpenRISC architecture - PowerPC architecture - S390 architecture - x86 architecture - Block layer subsystem - Crypto API - Intel NPU driver - Android driver - Rados block device (RBD) driver - Bluetooth driver - Hardware random number generator core - TPM device driver - CPU frequency scaling framework - Hardware crypto device driver - DMA engine subsystem - FireWire subsystem - Arm Firmware Framework (ARMv8-A/FFA) - GPIO subsystem - GPU driver - HID... Impact Scope Affected Versions: 24.04 LTS Specific Package Versions: - – 6.8.0-1036.39+1 - – 6.8.0-1036.39+1 - – 6.8.0-1036.39 - – 6.8.0-1036.39 - – 6.8.0-1036.39 - – 6.8.0-1036.39 Remediation Update Notes: - A reboot is required after the standard system update to apply all necessary changes. - Due to unavoidable ABI changes, kernel updates are assigned new version numbers, requiring all third-party kernel modules to be reinstalled and recompiled. Unless the standard kernel meta-packages (such as , , , ) are manually uninstalled, standard system upgrades will handle this automatically. Risk Reduction: - Ubuntu Pro provides ten years of security coverage for over 25,000 packages across the Main and Universe repositories, free for up to five machines. References CVE-2026-97509 CVE-2026-80901 CVE-2026-89721 CVE-2026-80589 CVE-2026-80587 CVE-2026-80586 CVE-2026-80585 CVE-2026-80584 CVE-2026-80583 CVE-2026-80580 More references can be viewed by clicking "Show 674 more references". Related Notices USN-8906-1 USN-8905-1 USN-8904-1 USN-8903-1 USN-8885-1 USN-8886-1 USN-8886-2 USN-8887-1 USN-8887-2 USN-8879-1 More related notices can be viewed by clicking "Show 28 more references". Other Information For further questions, contact team members for assistance.

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Ubuntu USN-8886-1: Linux Kernel Multiple Architecture Security Patch (CVE-2026-97509 et al.)