USN-8871-1: Linux kernel flaws for Raspberry Pi, including an Arm processor issue
Ubuntu Security notice USN-8871-1, dated 5 October 2026, fixes several Linux kernel flaws for Raspberry Pi. One, affecting some Arm processors, could let a local attacker bypass memory protections or elevate privileges.
Notice USN-8871-1, published on 5 October 2026 and shared through a machine-translated copy of the Ubuntu Security feed, covers vulnerabilities in the Linux kernel for Raspberry Pi. The highlighted issue (CVE-2025-10263) concerns some Arm processors that could complete a broadcast TLB invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to memory after permission had been revoked, bypassing memory protections or elevating privileges.
The notice also reports several other kernel security problems that an attacker could possibly use to compromise the system. The fixes cover the ARM64 architecture, InfiniBand drivers, network drivers, the TCM subsystem, the exFAT filesystem, the NFS client and NFS server daemon, the B.A.T.M.A.N. protocol, IPv4 and IPv6 networking, Netfilter and the RDS protocol. Twenty 2026-series CVE identifiers are listed in the original.