PT-2025-18777

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue concerned the codel controlled delay qdisc queueing discipline in the kernel. Specifically, the problem involved the qlen...

SUSE CVE-2025-21971

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent creation of classes with TCHROOT The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing up the qdisc tree to update parent backlog counters. However, if a class is created wi...

DEBIAN-CVE-2025-21971

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent creation of classes with TCHROOT The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing up the qdisc tree to update parent backlog counters. However, if a class is created wi...

CVE-2025-21971

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent creation of classes with TCHROOT The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing up the qdisc tree to update parent backlog counters. However, if a class is created wi...

UBUNTU-CVE-2025-21971

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent creation of classes with TCHROOT The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing up the qdisc tree to update parent backlog counters. However, if a class is created wi...

CVE-2025-21971 net_sched: Prevent creation of classes with TC_H_ROOT

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent creation of classes with TCHROOT The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing up the qdisc tree to update parent backlog counters. However, if a class is created wi...

CVE-2025-21971 net_sched: Prevent creation of classes with TC_H_ROOT

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent creation of classes with TCHROOT The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing up the qdisc tree to update parent backlog counters. However, if a class is created wi...

CVE-2025-21971

Summary (CVE-2025-21971): In the Linux kernel, an issue in net_sched can cause incorrect parent backlog statistics when a Qdisc class is created with classid TC_H_ROOT (0xFFFFFFFF). The traversal in qdisc_tree_reduce_backlog() terminates at TC_H_ROOT instead of the actual root, which can lead to ...

SUSE CVE-2023-53021

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

CVE-2023-53021

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

CVE-2023-53021

CVE-2023-53021 affects the Linux kernel net/sched sch_taprio component. An invalid TCA_RATE attribute can trigger a use-after-free in a taprio qdisc during qdisc_create/taprio_destroy, with an hrtimer firing and __netif_schedule() leading to net_tx_action() using a destroyed qdisc. The issue is f...

CVE-2023-53021 net/sched: sch_taprio: fix possible use-after-free

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

CVE-2023-53021 net/sched: sch_taprio: fix possible use-after-free

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

CVE-2023-53021 net/sched: sch_taprio: fix possible use-after-free

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

CVE-2023-53021

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2024-26924: scsi: lpfc: Release hbalock before calling lpfcworkerwakeup bsc1225820. CVE-2024-27397: netfilter: nftables: use timestamp to check for set...

Linux kernel 资源管理错误漏洞

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 nettxaction potentially using a destroyed qdisc...

The vulnerability of the qdisc_alloc() function in the net/sched/sch_generic.c module of the network traffic management subsystem of the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the qdiscalloc function in the net/sched/schgeneric.c module of the network traffic management subsystem of the Linux operating system’s kernel is related to insufficient resource locking. Exploiting this vulnerability could allow an attacker to cause a service failure...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2021-47633: ath5k: fix OOB in ath5keepromreadpcalinfo5111 bsc1237768. CVE-2022-49080: mm/mempolicy: fix mpolnew leak in sharedpolicyreplace bsc1238033...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2021-47633: ath5k: fix OOB in ath5keepromreadpcalinfo5111 bsc1237768. CVE-2022-49080: mm/mempolicy: fix mpolnew leak in sharedpolicyreplace bsc1238033...