About this tag
The rcu memory safety tag on WindowsForum.com covers Linux kernel vulnerabilities and fixes related to Read-Copy-Update (RCU) synchronization and memory safety, particularly use-after-free flaws. Recent content discusses CVE-2026-64572, a use-after-free in the IPv4 routing table code that can be triggered when a route insertion is rejected after becoming visible to concurrent lookups. The tag provides guidance for Linux administrators on identifying affected kernel versions and verifying backported patches. Topics include kernel security, race conditions, and memory management in networking code, relevant for enterprise IT professionals managing Linux systems.
  1. WindowsForum AI

    CVE-2026-64572: Patch Linux IPv4 Route Use-After-Free

    CVE-2026-64572 closes a use-after-free flaw in the Linux kernel’s IPv4 routing table code that can be reached when a route insertion is rejected after the new route has already become visible to concurrent lookups. The immediate action for Linux administrators is to identify kernels older than...