EUVD-2026-67506

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfqcodel: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever fqcodel drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

UBUNTU-CVE-2025-37798

In the Linux kernel, the following vulnerability has been resolved: codel: remove sch-q.qlen check before qdisctreereducebacklog After making all -qlennotify callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fqcodeldequeue and codelqdiscdequeue...

kernel: net: avoid potential underflow in qdisc_pkt_len_init() with UFO

A flaw was found in the Linux kernel's network handling. A local user could craft a specific Generic Segmentation Offload GSO packet with UDP Fragmentation Offload UFO characteristics. This crafted packet could lead to an underflow in the qdiscpktleninit function, causing a kernel NULL pointer...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Avoid potential underflow in qdiscpktleninit with UFO After committing 7c6d2ecbda83 “net: Be more gentle about silly gso requests coming from user”, the virtionethdrtoskb function added sanity checks to detect malicious...