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...

SUSE CVE-2025-21692

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

DEBIAN-CVE-2025-21692

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

AZL-57012 CVE-2025-21692 affecting package kernel for versions less than 5.15.180.1-1

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

AZL-57028 CVE-2025-21692 affecting package kernel for versions less than 6.6.76.1-1

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

UBUNTU-CVE-2025-21692

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

CVE-2025-21692 net: sched: fix ets qdisc OOB Indexing

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

Azure Linux 3.0 Security Update: kernel (CVE-2024-50039)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-50039 advisory. - In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root...

SUSE CVE-2024-56770

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

CVE-2024-56770

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

CVE-2024-56770

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

AZL-55428 CVE-2024-56770 affecting package kernel for versions less than 5.15.176.3-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

AZL-55431 CVE-2024-56770 affecting package kernel for versions less than 6.6.76.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

UBUNTU-CVE-2024-56770

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

CVE-2024-56770

CVE-2024-56770 documents a Linux kernel netem backlog accounting bug when used with a child qdisc (e.g., netem as root with tbf child). The issue arises because netem’s qlen/backlog statistics were updated by child qdiscs via qdisc_tree_reduce_backlog, but netem did not decrement qlen accordingly...

CVE-2024-56770 net/sched: netem: account for backlog updates from child qdisc

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

CVE-2024-56770 net/sched: netem: account for backlog updates from child qdisc

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

CVE-2024-56770 net/sched: netem: account for backlog updates from child qdisc

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful qdisc should keep track of the number of packets that the qdisc itself and all of its children holds. In case of netem, 'qlen' only...

PT-2025-36272

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's networking scheduler related to backlog accounting within the qdisc dequeue internal function. This issue affects the hhf, fq, fq codel, and fq pie...

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...