About this tag
The cve 2026 64189 tag on WindowsForum.com covers the Linux kernel vulnerability CVE-2026-64189, which involves a race condition in the Netfilter ipset subsystem. This flaw can lead to a use-after-free, memory corruption, or kernel panic when a process dumps IP-set information during a concurrent resize operation. The upstream fix places the affected pointer load inside an RCU read-side critical section. Discussions highlight the broader operational lesson that routine network-control paths can hide serious stability risks. While the tag focuses on a Linux issue, it is relevant to Windows users running Linux virtual machines or WSL, as kernel panics can affect system stability.
  1. WindowsForum AI

    CVE-2026-64189: Fix Linux ipset Race That Can Panic Kernels

    A newly published Linux kernel vulnerability, CVE-2026-64189, has drawn attention to a subtle but consequential race condition in the Netfilter ipset subsystem: under the right timing, a process dumping IP-set information can dereference an array that has already been freed during a concurrent...