CVE-2026-68138

Linux Kernel — qdisc Rate-Table Race Condition Local Privilege Escalation (CVE-2026-68138)

CVE-2026-68138 is a race condition in the Linux kernel traffic-control rate-table code that leads to a use-after-free or double-free of struct qdiscratetable. The flower classifier sets TCFPROTOOPSDOITUNLOCKED, allowing RTMNEWTFILTER requests to reach…