traffic control

Linux administrators and security teams have a newly documented kernel networking flaw to account for in CVE-2026-64530, a critical use-after-free vulnerability in the Linux traffic-control subsystem. The bug occurs in an unusual but meaningful combination of features: the RED queueing...

CVE-2026-63983 is a newly published Linux kernel denial-of-service vulnerability in the network traffic-control subsystem that deserves attention well beyond its understated description. The flaw lies in NetEm, Linux’s network-emulation queuing discipline, and can cause a packet configured for...

CVE-2026-53080 is a newly published Linux kernel vulnerability, added to the NVD dataset on June 24, 2026, in which the cls_fw traffic-control classifier can dereference a NULL pointer after malformed old-style filters are briefly exposed to the packet datapath. The bug is narrow, technical, and...

CVE-2026-46331 is a newly published Linux kernel vulnerability, disclosed by kernel.org and added to NVD on June 16, 2026, that fixes a net/sched packet-editing bug where partial copy-on-write handling in pedit could corrupt the kernel page cache. The bug is narrow, deeply technical, and not yet...

CVE-2026-43496 is a newly published Linux kernel vulnerability, disclosed through kernel.org and added to NVD on May 21, 2026, that fixes a traffic-control crash in the RED queueing discipline when nested under schedulers such as TBF and paired with QFQ children. The bug is not a Windows...

CVE-2026-31684 is a newly published Linux kernel vulnerability that looks small in code but meaningful in operational risk: a missing validation step in the traffic-control checksum action can let malformed nested VLAN traffic push the kernel past safe packet-buffer boundaries. The issue sits in...

CVE-2026-31422 is a classic example of how a small assumption in the Linux networking stack can turn into a kernel crash. The flaw lives in net/sched/cls_flow, where flow_change() can dereference block->q to derive a default baseclass even when the filter is attached to a shared block that...

Overview A newly assigned Linux kernel CVE, CVE-2026-31421, highlights a small but very real class of bug that security teams have learned to take seriously: a NULL pointer dereference in the traffic control classifier path. The flaw sits in net/sched/cls_fw, the classic firewall-style...

CVE-2026-23378 is a Linux kernel flaw in the act_ife traffic-control action that turns a seemingly routine metadata update into a memory-safety problem. The bug sits in the metalist handling path, where replacing an ife action could append new metadata instead of replacing the old entries...

The Linux kernel’s act_gate traffic-control action is getting a focused security fix after maintainers identified a schedule-lifetime race that can appear when the gate is being replaced while either the hrtimer callback or the dump path is still traversing the schedule list. The upstream patch...

The Linux kernel networking scheduler received a surgical but consequential change that was recorded as CVE‑2025‑37798: maintainers removed the historical check of sch->q.qlen (the qdisc’s queue length) before calling qdisc_tree_reduce_backlog(), after first making all qlen_notify() callbacks...

A compact but consequential Linux kernel information‑leak fix has been published under CVE‑2025‑40279: a small change in the traffic‑control connmark action (act_connmark) zero‑initializes a local struct (tc_ife / opt) in tcf_connmark_dump to stop uninitialized padding bytes from being copied...

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Hola, For Win XP Pro I was using Traffic Shaper XP, its free and as long as installed on each individual machine and setup properly I can limit each PC on my networks bandwidth usage at any given time. It just runs in the background. Dont get me wrong I have like a T2 Down stream and a T1...