Ubuntu USN-8492-5 Linux Kernel Security Advisory with Multiple CVEs

Vulnerability Overview Vulnerability ID: USN-8492-5 Publication Date: July 10, 2026 Vulnerability Description: Multiple security issues were discovered in the Linux kernel, which attackers could leverage to compromise the system. Affected Scope Affected Subsystems: - ARM64 architecture - MIPS architecture - PowerPC architecture - x86 architecture - Block layer subsystem - Cryptographic API - ACPI drivers - ATM drivers - RNBD block device driver - Ubik userspace block driver - Bus devices - Character device drivers - TPM device drivers - Clock framework and drivers - Clock source drivers - CPU idle management framework - Hardware cryptographic device drivers - DMA engine subsystem - EFI core - GPIO subsystem - GPU drivers - HID subsystem - Hardware monitoring drivers - IIO subsystem - InfiniBand drivers - IOMMU subsystem - Various devices Remediation Update Notes: - A system restart is required after the standard system update to apply all necessary changes. - Due to inevitable ABI changes, kernel updates have been assigned new version numbers, requiring third-party kernel modules to be recompiled and reinstalled. - If the standard kernel meta-packages (such as , , , ) were manually uninstalled, the standard system upgrade will perform this action automatically. Updated Package Versions: - Ubuntu 24.04 LTS (noble): - – 6.8.0-1062.69+fips1 - – 6.8.0-134.134+fips1 - – 6.8.0-1062.69+fips1 - – 6.8.0-1062.69+fips1 - – 6.8.0-134.134+fips1 - – 6.8.0-134.134+fips1 References CVE-2026-46328 CVE-2026-46289 CVE-2026-46270 CVE-2026-46267 CVE-2026-46266 CVE-2026-46265 CVE-2026-46261 CVE-2026-46260 CVE-2026-46259 CVE-2026-46255 Related Notices USN-6508-1 USN-6507-1 USN-6501-1 USN-6499-1 USN-6498-1 USN-6497-1 USN-6493-1 USN-6493-2 USN-6492-1 USN-6492-2 Risk Mitigation Ubuntu Pro provides ten years of security coverage for over 25,000 packages covering the Main and Universe repositories, free for use on up to five machines. Additional Information Contact team, product support, community resources, and other information are provided at the bottom of the page.

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Ubuntu USN-8492-5 Linux Kernel Security Advisory with Multiple CVEs

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