OESA-2025-1869 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's...

UBUNTU-CVE-2022-49958

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix netdevice reference leaks in attachdefaultqdiscs In attachdefaultqdiscs, if a dev has multiple queues and queue 0 fails to attach qdisc because there is no memory in attachonedefaultqdisc. Then dev-qdisc will be...

CVE-2022-49958

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix netdevice reference leaks in attachdefaultqdiscs In attachdefaultqdiscs, if a dev has multiple queues and queue 0 fails to attach qdisc because there is no memory in attachonedefaultqdisc. Then dev-qdisc will be...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from net sched's failure to release network device references in attachdefaultqdiscs, which could lead to a memor...

kernel: net: sched: fix ordering of qlen adjustment

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ordering of qlen adjustment Changes to sch-q.qlen around qdisctreereducebacklog need to happen before a call to said function because otherwise it may fail to notify parent qdiscs when the child is about to become...

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-2025-21702

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

SUSE CVE-2025-21700

In the Linux kernel, the following vulnerability has been resolved: net: sched: Disallow replacing of child qdisc from one parent to another Lion Ackermann was able to create a UAF which can be abused for privilege escalation with the following script Step 1. create root qdisc tc qdisc add dev lo...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/sched: stop qdisctreereducebacklog on TCHROOT In qdisctreereducebacklog, Qdiscs with a major handle of ffff: are assumed to be either root or ingress. This assumption is incorrect, as it is possible to create egress Qdiscs wi...

AZL-53921 CVE-2024-53057 affecting package kernel for versions less than 5.15.173.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: stop qdisctreereducebacklog on TCHROOT In qdisctreereducebacklog, Qdiscs with major handle ffff: are assumed to be either root or ingress. This assumption is bogus since it's valid to create egress qdiscs with major...

CVE-2024-53057 net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT

In the Linux kernel, the following vulnerability has been resolved: net/sched: stop qdisctreereducebacklog on TCHROOT In qdisctreereducebacklog, Qdiscs with major handle ffff: are assumed to be either root or ingress. This assumption is bogus since it's valid to create egress qdiscs with major...

SUSE CVE-2021-47598

In the Linux kernel, the following vulnerability has been resolved: schcake: do not call cakedestroy from cakeinit qdiscs are not supposed to call their own destroy method from init, because core stack already does that. syzbot was able to trigger use after free: DEBUGLOCKSWARNONlock-magic != loc...

CVE-2021-47598

In the Linux kernel, the following vulnerability has been resolved: schcake: do not call cakedestroy from cakeinit qdiscs are not supposed to call their own destroy method from init, because core stack already does that. syzbot was able to trigger use after free: DEBUGLOCKSWARNONlock-magic != loc...

CVE-2021-47598 sch_cake: do not call cake_destroy() from cake_init()

In the Linux kernel, the following vulnerability has been resolved: schcake: do not call cakedestroy from cakeinit qdiscs are not supposed to call their own destroy method from init, because core stack already does that. syzbot was able to trigger use after free: DEBUGLOCKSWARNONlock-magic != loc...

kernel: net/sched: fix netdevice reference leaks in attach_default_qdiscs()

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix netdevice reference leaks in attachdefaultqdiscs In attachdefaultqdiscs, if a dev has multiple queues and queue 0 fails to attach qdisc because there is no memory in attachonedefaultqdisc. Then dev-qdisc will be...

PT-2025-25884 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability in the Linux kernel has been resolved, which was related to netdevice reference leaks in the attach default qdiscs function. If a device has multiple queues and queue 0...

GSD-2022-1004983 net/sched: fix netdevice reference leaks in attach_default_qdiscs()

net/sched: fix netdevice reference leaks in attachdefaultqdiscs This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.19.8 by commit...

NetworkManager bug fix and enhancement update

An update is available for NetworkManager. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list NetworkManager is a system network service that manages network device...

NetworkManager bug fix and enhancement update

NetworkManager is a system network service that manages network devices and connections, attempting to keep active network connectivity when available. Its capabilities include managing Ethernet, wireless, mobile broadband WWAN, and PPPoE devices, as well as providing VPN integration with a varie...

ALBA-2021:2576 NetworkManager bug fix and enhancement update

NetworkManager is a system network service that manages network devices and connections, attempting to keep active network connectivity when available. Its capabilities include managing Ethernet, wireless, mobile broadband WWAN, and PPPoE devices, as well as providing VPN integration with a varie...