CVE-2026-68138

CVE-2026-68138 — Linux kernel net/sched qdisc rate-table UAF tracking site Source for the CVE-2026-68138 patch-status tracker: a single-page site recording which distributions have shipped a fix for the net/sched qdisc rate-table use-after-free / double-free in the Linux kernel. Where the facts...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: schhtb: Make htbqlennotify idempotent. htbqlennotify always disactivates the HTB class, and actually might trigger a warning if it is already disactivated. Therefore, it is not idempotent and is not friendly to its callers, like...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop a new packet when sch-limit == 0. Expected behavior: If the scheduler’s limit is reached, pfifotailenqueue will drop a packet from the scheduler’s queue and decrease the scheduler’s qlen by one. Then, it wi...

K000163548: Multiple Linux kernel vulnerabilities

Security Advisory Description CVE-2025-71066 In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: Always remove class from active list before deleting in etsqdiscchange [email protected] says: The vulnerability is a race condition between etsqdiscdequeu...

CVE-2025-68325

CVE-2025-68325 schcake doesn't consider the case when cakeenqueue returns a non-null result, leading to the imbalanced qlen in the qdisc tree, triggering null-deref in its parent sched, e.g., qfq. Affected Versions Fixed at v6.19-rc1 Severity Low Patch In cakedrop, qdisctreereducebacklog is used ...

like-dbg

LIKE-DBG LIKE-DBG LI nux-KE rnel-D e B u G ger aims at automating the boring steps when trying to set up a Linux kernel debugging environment. I set out to dive into kernel exploitation research and found existing solutions not usable enough. Hence, this is an attempt at making all necessary...

CVE-2026-68138

CVE-2026-68138: Linux qdisc rate-table race to local root This repository contains a proof-of-concept local privilege-escalation exploit for CVE-2026-68138 , a race in the Linux traffic-control rate-table code. In the tested QEMU environment, the PoC escalates from an ordinary process with outer...

CVE-2026-98017

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTMNEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded miniQdisc to lockless readers. If the same request has an...

AZL-104865 CVE-2026-98009 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: clamp quantum in parse and fallback paths etsqdiscchange falls back to pschedmtu with no floor for bands without an explicit quantum. With a crafted size table qdiscpktlen reaches 2 GiB, so a zero pschedmtu on a...

UBUNTU-CVE-2026-98010

In the Linux kernel, the following vulnerability has been resolved: net/sched: drr: clamp quantum in change class drrchangeclass rejects explicit quantum==0 but falls back to pschedmtu with no floor. With a crafted size table qdiscpktlen reaches 2 GiB, so quantum=1 or a zero pschedmtu on a...

CVE-2026-98017

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTMNEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded miniQdisc to lockless readers. If the same request has an...

CVE-2026-98017 net/sched: defer qdisc freeing after failed creation

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTMNEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded miniQdisc to lockless readers. If the same request has an...

EUVD-2026-86670

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTMNEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded miniQdisc to lockless readers. If the same request has an...

EUVD-2026-86663

In the Linux kernel, the following vulnerability has been resolved: net/sched: drr: clamp quantum in change class drrchangeclass rejects explicit quantum==0 but falls back to pschedmtu with no floor. With a crafted size table qdiscpktlen reaches 2 GiB, so quantum=1 or a zero pschedmtu on a...

CVE-2026-98010

The Linux kernel contains a vulnerability in the net/sched subsystem where the drr_change_class() function fails to properly clamp the quantum value during a fallback to psched_mtu(). Specifically, while explicit zeros are rejected, the absence of a floor allows a crafted size table to cause qdis...

CVE-2026-98017: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTMNEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded miniQdisc to lockless readers. If the same request has an...

CVE-2026-98010: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: drr: clamp quantum in change class drrchangeclass rejects explicit quantum==0 but falls back to pschedmtu with no floor. With a crafted size table qdiscpktlen reaches 2 GiB, so quantum=1 or a zero pschedmtu on a...

PT-2026-98680

In the Linux kernel, the following vulnerability has been resolved: net/sched: defer qdisc freeing after failed creation An RTM NEWQDISC request can make clsact bind a populated shared ingress block during -init, publishing an embedded mini Qdisc to lockless readers. If the same request has an...

PT-2026-98673

In the Linux kernel, the following vulnerability has been resolved: net/sched: drr: clamp quantum in change class drr change class rejects explicit quantum==0 but falls back to psched mtu with no floor. With a crafted size table qdisc pkt len reaches 2 GiB, so quantum=1 or a zero psched mtu on a...

PT-2026-98672

In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: clamp quantum in parse and fallback paths ets qdisc change falls back to psched mtu with no floor for bands without an explicit quantum. With a crafted size table qdisc pkt len reaches 2 GiB, so a zero psched mtu ...