The vulnerability of the ets_class_from_arg() function in the net/sched/sch_ets.c module of the net/sched subsystem of the Linux operating system allows a hacker to gain unauthorized access to protected information.

The vulnerability of the etsclassfromarg function in the net/sched/schets.c module of the net/sched subsystem of the Linux operating system lies in the handling of buffer overflow attacks. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdisc implementations maintain their backlog using qdiscpktlenskb, under the assumption that this value is invariant between the enqueue and dequeue handlers. Unfortunately, the...

Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-52489: mm/sparsemem: fix race in accessing memorysection-usage bsc1221326. CVE-2023-52581: netfilter: nftables: fix memleak when more than 255 elements...

Vulnerability of components of Linux operating system’s kernel’s net/sched module, allowing a hacker to cause a service failure

The vulnerability of the net/sched components in the Linux operating system’s kernel is related to improper locking mechanisms. Exploiting this vulnerability can allow an attacker to cause a service failure...

UBUNTU-CVE-2025-21653

In the Linux kernel, the following vulnerability has been resolved: netsched: clsflow: validate TCAFLOWRSHIFT attribute syzbot found that TCAFLOWRSHIFT attribute was not validated. Right shitfing a 32bit integer is undefined for large shift values. UBSAN: shift-out-of-bounds in...

CLSA-2025-1736778412 kernel: Fix of 17 CVEs

tracing: Free buffers when a used dynamic event is removed CVE-2022-49006 - ASoC: ops: Check bounds for second channel in sndsocputvolswsx CVE-2022-48951 - ext4: fix slab-use-after-free in ext4splitextentat CVE-2024-49884 - ext4: fix bug on in ext4escacheextent as ext4splitextentat failed...

PT-2025-8783

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.10.0 Description A vulnerability has been identified in the Linux kernel, specifically in the net sched module, where the sch sfq implementation does not work correctly with a limit of 1 packet. This issue can...

The vulnerability of the taprio_change() function in the net/sched component of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the tapriochange function in the net/sched/schtaprio.c module of the net/sched component of the Linux operating system is related to the reutilization of previously released memory due to competitive access to resources race condition. Exploiting this vulnerability could allo...

CVE-2024-53057

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. Mitigation Mitigation for this issue is either not...

CVE-2024-53044

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

Vulnerability of components of Linux operating system’s kernel’s net/sched module, allowing a hacker to cause a service failure

The vulnerability of the net/sched component of the Linux operating system’s kernel is related to improper locking of resources in the qdisctreereducebacklog function. Exploiting this vulnerability can allow an attacker to cause a service failure...

Vulnerability of components of Linux operating system’s kernel’s net/sched module, allowing a hacker to cause a service failure

The vulnerability of the net/sched components in Linux operating systems stems from synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to cause a service failure...

SUSE CVE-2024-53057

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...

DEBIAN-CVE-2024-53057

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-2024-53044

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

UBUNTU-CVE-2024-53044

In the Linux kernel, the following vulnerability has been resolved: net/sched: schapi: fix xainsert error path in tcfblockgetext This command: $ tc qdisc replace dev eth0 ingressblock 1 egressblock 1 clsact Error: block dev insert failed: -EBUSY. fails because user space requests the same block...

UBUNTU-CVE-2024-53057

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...

CVE-2024-53044

CVE-2024-53044 affects the Linux kernel net/sched component (sch_api) and is tied to the tcf_block_get_ext() path. The root cause is an xa_insert() error handling route, which can mis-handle a failure when the same block index is requested for ingress and egress, leading to a busy block condition...

Vulnerability of components of Linux operating system’s kernel’s net/sched module, allowing a hacker to cause a service failure

The vulnerability of the net/sched component of the Linux operating system’s kernel is related to the lack of memory release after the effective service life in the tcfskbmoddump function. Exploiting this vulnerability can allow an attacker to cause a service failure...