kernel: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit

In the Linux kernel, the following vulnerability has been resolved: net/sched: Make cakeenqueue return NETXMITCN when past bufferlimit The following setup can trigger a WARNING in htbactivate due to the condition: !cl-leaf.q-q.qlen tc qdisc del dev lo root tc qdisc add dev lo root handle 1: htb...

SUSE CVE-2026-45845

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix NULL pointer dereference in class dump When a TAPRIO child qdisc is deleted via RTMDELQDISC, tapriograft is called with new == NULL and stores NULL into q-qdiscscl - 1. Subsequent RTMGETTCLASS dump operatio...

CVE-2026-45845

A flaw was found in the Linux kernel's TAPRIO Traffic Policing and Rate Limiting I/O qdisc. An unprivileged local user, with namespace-scoped CAPNETADMIN capabilities, can trigger a kernel null pointer dereference. This occurs by creating a TAPRIO qdisc in a new network namespace, grafting and th...

CVE-2026-45845

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix NULL pointer dereference in class dump When a TAPRIO child qdisc is deleted via RTMDELQDISC, tapriograft is called with new == NULL and stores NULL into q-qdiscscl - 1. Subsequent RTMGETTCLASS dump operatio...

CVE-2026-45845

The CVE-2026-45845 entry concerns the Linux kernel net/sched TAPRIO implementation. A NULL pointer dereference in taprio_dump_class can occur when a TAPRIO child qdisc is deleted and new == NULL in taprio_graft, leading to dereferencing child->handle during RTM_GETTCLASS dumps. The issue is re...

CVE-2026-45845

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix NULL pointer dereference in class dump When a TAPRIO child qdisc is deleted via RTMDELQDISC, tapriograft is called with new == NULL and stores NULL into q-qdiscscl - 1. Subsequent RTMGETTCLASS dump operatio...

Linux Distros Unpatched Vulnerability : CVE-2026-45845

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: taprio: fix NULL pointer dereference in class dump When a TAPRIO child qdisc is deleted via RTMDELQDISC, tapriograft is called with new == NULL and...

PT-2026-43679

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the Linux kernel's TAPRIO child qdisc implementation. When a TAPRIO child qdisc is deleted via RTM DELQDISC, the taprio graft function stores a NULL...

SUSE CVE-2026-43496

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

Linux Distros Unpatched Vulnerability : CVE-2026-43496

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeue...

CVE-2026-43496

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

CVE-2026-43496

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

UBUNTU-CVE-2026-43496

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

CVE-2026-43496 net/sched: sch_red: Replace direct dequeue call with peek and qdisc_dequeue_peeked

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

EUVD-2026-31274

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

CVE-2026-43496

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

CVE-2026-43496

The CVE-2026-43496 issue is in the Linux kernel net/sched sch_red path. When a red qdisc has children (e.g., qfq) whose peek() callback is qdisc_peek_dequeued(), a parent (e.g., tbf) attempting to retrieve an skb could trigger a kernel panic due to a problematic dequeue path. The documented seque...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from schred qdisc directly calling dequeue of sub-qdisc instead of peek and qdiscdequeuepeeked. This could...

Astra Linux - уязвимость в linux-6.1, linux-5.15, linux-5.10

In the Linux kernel, the following vulnerability has been resolved: netsched: qfq: A double addition of the classifier was corrected in the class where netem is a child qdisc. As described in Gerrard’s report 1, there are use cases where a netem child qdisc can make the enqueue callback of the...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan discovered that etsclassfromarg can index an Out-Of-Bound class when the clid of 0 is passed. This could lead to local privilege escalation. 18.852298 ------------ Cut here...