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...

CVE-2026-74266

In the Linux kernel, the following vulnerability has been resolved: net/sched: schdualpi2: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever dualpi2 drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

UBUNTU-CVE-2026-74267

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

CVE-2026-74267 net/sched: sch_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring qlen

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

CVE-2026-74267 net/sched: sch_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring qlen

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

EUVD-2026-59413

In the Linux kernel, the following vulnerability has been resolved: net/sched: schdualpi2: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever dualpi2 drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

PT-2026-72702

In the Linux kernel, the following vulnerability has been resolved: net/sched: sch dualpi2: Do not call qdisc tree reduce backlog during peek before restoring qlen Whenever dualpi2 drops packets during peek, it calls qdisc tree reduce backlog. An issue arises because it calls qdisc tree reduce...

The vulnerability of the Windows QoS Packet Scheduler allows a hacker to exploit it to disclose protected information.

The vulnerability of the Windows QoS Packet Scheduler in the operating system is related to insufficient protection of service data. Exploiting this vulnerability can allow an attacker to disclose protected information...

EUVD-2026-44064

Windows Quality of Service QoS Packet Scheduler Information Disclosure Vulnerability...

CVE-2026-50431

Windows Quality of Service QoS Packet Scheduler Information Disclosure Vulnerability...

CVE-2026-50431 Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability

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CVE-2026-50431 Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability

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CVE-2026-50431

Technical details are not publicly available in the provided documents. Monitor updates from Microsoft (MSRC) and advisories (NCSC, ZDI) for affected products, impact, and remediation related to CVE-2026-50431.

Windows Quality of Service (QoS) Packet Scheduler Information Disclosure Vulnerability

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PT-2026-58410

Windows Quality of Service QoS Packet Scheduler Information Disclosure Vulnerability...

CVE-2026-50431: Exposure of Sensitive Information to an Unauthorized Actor

Windows Quality of Service QoS Packet Scheduler Information Disclosure Vulnerability...

CVE-2026-22976

CVE-2026-22976 affects the Linux kernel’s net/sched sch_qfq, where two qfq_class objects can reference the same leaf_qdisc. In certain teardown paths (e.g., when a qdisc is pending destruction via tc_new_tfilter and another qdisc is root-attached), a shared leaf_qdisc may have q.qlen > 0 while...

CLSA-2025-1747688831 kernel: Fix of 20 CVEs

drm/dpmst: Ensure mstprimary pointer is valid in drmdpmsthandleupreq CVE-2024-57798 - block: Fix handling of offline queues in blkmqallocrequesthctx CVE-2022-49720 - drm: nv04: Fix out of bounds access CVE-2024-27008 - parport: Proper fix for array out-of-bounds access CVE-2024-50074 - Bluetooth:...

kernel: net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT

A flaw was found in the packet scheduler API in the Linux kernel. An invalid assumption about qdiscs with major handle ffff allows qdiscs, such as DRR, that maintain an active class list to cause a use-after-free with a dangling class pointer...

UBUNTU-CVE-2024-42114

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: restrict NL80211ATTRTXQQUANTUM values syzbot is able to trigger softlockups, setting NL80211ATTRTXQQUANTUM to 2^31. We had a similar issue in schfq, fixed with commit d9e15a273306 "pktsched: fq: do not accept sill...