cve 2026 22976

About this tag
CVE-2026-22976 is a Linux kernel vulnerability in the QFQ (Quick Fair Queueing) network scheduler that can cause a NULL pointer dereference and system crash. The flaw occurs when a qdisc reset deactivates an aggregate that is already inactive. Patched in January 2026, this issue affects the net/sched/sch_qfq module and is relevant for Linux system administrators and security professionals managing kernel updates. While WindowsForum.com primarily covers Windows topics, this tag addresses a cross-platform security concern that may interest IT professionals working in mixed environments.

  1. CVE-2026-22976: Linux QFQ Kernel Patch Fixes Local NULL Pointer Dereference

    The Linux kernel's QFQ (Quick Fair Queueing) network scheduler was patched this month to fix a NULL pointer dereference that could crash a system when a qdisc reset deactivates an aggregate that is actually inactive — the flaw has been catalogued as CVE-2026-22976 and was published on January...
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