Ubuntu patches Linux kernel (Azure) flaws in two security notices: USN-8730-2 and USN-8761-1

Ubuntu issued two security notices on 2026-09-15 fixing vulnerabilities in the Linux kernel Azure flavor, covering IPv6/Netfilter and a broader set of subsystems including Bluetooth, NTFS3, and SMB.

Ubuntu Security Notices published two advisories on 2026-09-15 for the Linux kernel Azure flavor. USN-8730-2 corrects a single security issue affecting the IPv6 networking and Netfilter subsystems. USN-8761-1 corrects several security issues spanning ARM32, ARM64, and PowerPC architectures plus subsystems including Bluetooth, Netfilter, EFI core, GPU drivers, InfiniBand, SCSI, NTFS3, and SMB. According to the notices, an attacker could possibly use these flaws to compromise the system. The reports do not provide specific CVE identifiers, package versions, or affected releases.

• USN-8730-2 fixes a single Linux kernel (Azure) vulnerability in the IPv6 networking and Netfilter subsystems
• USN-8761-1 fixes several Linux kernel (Azure) vulnerabilities affecting ARM32, ARM64, and PowerPC architectures
• USN-8761-1 also covers Bluetooth, Netfilter, EFI core, GPU drivers, InfiniBand, SCSI, NTFS3, and SMB subsystems
• Both advisories affect the Linux kernel Azure flavor
• Both notices state an attacker could possibly use the flaws to compromise the system
• Both notices were published by Ubuntu Security Notices on 2026-09-15
• No CVE identifiers or package versions were specified in either report