net: sched: Disallow replacing of child qdisc from one parent to another

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UBUNTU-CVE-2025-22061

In the Linux kernel, the following vulnerability has been resolved: net: airoha: Fix qid report in airohatcgethtbgetleafqueue Fix the following kernel warning deleting HTB offloaded leafs and/or root HTB qdisc in airohaeth driver properly reporting qid in airohatcgethtbgetleafqueue routine. $tc...

net: sched: fix ets qdisc OOB Indexing

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PT-2025-30871

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s networking subsystem related to traffic control net/sched. Specifically, the issue occurs when creating or modifying a queueing discipline qdisc with ...

PT-2025-33708

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw exists in the Linux kernel's net/sched subsystem related to the handling of netem network emulator queuing disciplines qdiscs. The duplication prevention logic within netem...

kernel: net/sched: fix lockdep splat in qdisc_tree_reduce_backlog()

CVE-2024-35892 is a vulnerability in the Linux kernel’s network scheduler caused by improper use of the qdisclookup function. This function assumes the global RTNL lock is held, but in the qdisctreereducebacklog function, only a local queue lock is used. This mismatch creates a race condition tha...

kernel: net: sched: sch_multiq: fix possible OOB write in multiq_tune()

An out-of-bounds write flaw was found in the Linux kernel's multiq qdisc functionality. This vulnerability allows a local user to crash or potentially escalate their privileges on the system...

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 the function fqpiedestroy not copying working code from pie destroy and other qdisc...

kernel: use-after-free due to race condition in qdisc_graft()

A use-after-free flaw was found in qdiscgraft in net/sched/schapi.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 "net: sched: fix race condition in qdiscgraft" not applied yet, then kernel could be affected...

Important: kernel-livepatch-5.10.192-183.736

Issue Overview: A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then...

DEBIAN-CVE-2023-4623

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

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-2024-11177 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A refcount leak issue has been identified in the Linux kernel, specifically in the htb parent to leaf offload function. The commit ae81feb7338c, which aimed to fix a NULL pointer...

CVE-2013-4563

The udp6ufofragment function in net/ipv6/udpoffload.c in the Linux kernel through 3.12, when UDP Fragmentation Offload UFO is enabled, does not properly perform a certain size comparison before inserting a fragment header, which allows remote attackers to cause a denial of service panic via a lar...