USN-8726-2: Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu patches CVE-2025-10263, an Arm TLB invalidation flaw letting local attackers bypass memory protections or escalate privileges, plus other kernel fixes for Raspberry Pi.
Ubuntu released USN-8726-2 for the Linux kernel on the Raspberry Pi variant. It fixes CVE-2025-10263, where some Arm processors complete a broadcast TLB invalidation before associated memory writes are globally observed, allowing a local attacker to write to memory after permissions were revoked, potentially bypassing memory protections or escalating privileges. The update also corrects flaws across ARM64, ARM32, RISC-V, and S390 architectures and other kernel subsystems.
- Fixes CVE-2025-10263: Arm TLB invalidation race enabling local privilege escalation or memory protection bypass.
- Applies to Ubuntu's Linux kernel Raspberry Pi variant (USN-8726-2).
- Also corrects flaws in ARM64, ARM32, RISC-V, S390 and other subsystems.
- CVEs
- CVE-2025-10263
- Products
- Linux kernelRaspberry Pi
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2025-10263 | Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 &… | 9.1 | <1% |
From the original article
It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (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 A local attacker could possibly use this to write to memory after permission to do so had been revoked, bypassing memory protections or escalating privileges.
ubuntu.com
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