Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/sched: Abort tcmodifyqdisc if parent class does not exist Lion’s patch 1 uncovered an ancient bug in the qdisc API. Whenever a user creates or modifies a qdisc with another qdisc as its parent, the qdisc API will detect that...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netsched: genestimator: fix esttimer vs CONFIGPREEMPTRT=y The syzbot reported a warning in esttimer 1. The problem arises from the fact that when CONFIGPREEMPTRT=y is enabled, timer callbacks can be preempted...

CVE-2025-40096 drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Fix potential double free in drmschedjobaddresvdependencies When adding dependencies with drmschedjobadddependency, that function consumes the fence reference both on success and failure, so in the latter case the...

EUVD-2025-36665

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix null-deref in aggdequeue To prevent a potential crash in aggdequeue net/sched/schqfq.c when cl-qdisc-ops-peekcl-qdisc returns NULL, we check the return value before using it, similar to the existing approac...

UBUNTU-CVE-2025-40083

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix null-deref in aggdequeue To prevent a potential crash in aggdequeue net/sched/schqfq.c when cl-qdisc-ops-peekcl-qdisc returns NULL, we check the return value before using it, similar to the existing approac...

CVE-2025-40083

In CVE-2025-40083, the Linux kernel net/sched SCH_QFQ implementation suffered a potential NULL pointer dereference in agg_dequeue when cl->qdisc->ops->peek() could return NULL. The fix adds a guard by validating the peek result before use, mirrors the approach used in sch_hfsc.c, and ref...

CVE-2025-40083 net/sched: sch_qfq: Fix null-deref in agg_dequeue

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix null-deref in aggdequeue To prevent a potential crash in aggdequeue net/sched/schqfq.c when cl-qdisc-ops-peekcl-qdisc returns NULL, we check the return value before using it, similar to the existing approac...

Siemens SIMATIC Devices Use After Free (CVE-2023-3609)

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, u32setparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker...

Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices Use After Free (CVE-2024-53057)

In the Linux kernel, the following vulnerability has been resolved: net/sched: stop qdisctreereducebacklog on TCHROOT. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

The vulnerability of the qlen_notify() function in the sched component of Linux kernel devices allows a hacker to trigger a service failure.

The vulnerability of the qlennotify function in the Linux kernel’s scheduling component is related to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a service failure...

Important: kernel-livepatch-5.10.240-238.955

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: check if the new fence is really later CVE-2022-49935 In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsimdrvprobe when nsimdevresourcesregister...

Important: kernel-livepatch-5.10.240-238.966

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netdevsim: fix memory leak in nsimdrvprobe when nsimdevresourcesregister failed CVE-2022-50500 In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Use rawsmpprocessorid instead of...

Siemens SIMATIC Devices Use of Uninitialized Resource (CVE-2024-35893)

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structure...

CVE-2023-53733

In the Linux kernel, the following vulnerability has been resolved: net: sched: clsu32: Undo tcfbindfilter if u32replacehwknode When u32replacehwknode fails, we need to undo the tcfbindfilter operation done at u32setparms...

SUSE-SU-2025:20909-1 Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: - CVE-2024-49974: NFSD: limit the number of concurrent async COPY operations bsc1232384 - CVE-2025-21971: netsched: Prevent creation of classes with TCHROOT bsc1245794 - CVE-2025-38206: exfat: fix double free in...

Security update for kernel-livepatch-MICRO-6-0_Update_4

This update for kernel-livepatch-MICRO-6-0Update4 fixes the following issues: CVE-2025-21971: netsched: Prevent creation of classes with TCHROOT bsc1245794 CVE-2025-38206: exfat: fix double free in delayedfree bsc1246075 CVE-2025-38396: fs: export anoninodemakesecureinode and fix secretmem LSM...

SUSE-SU-2025:20874-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_5

This update for kernel-livepatch-MICRO-6-0-RTUpdate5 fixes the following issues: - CVE-2025-21971: netsched: Prevent creation of classes with TCHROOT bsc1245794 - CVE-2025-38206: exfat: fix double free in delayedfree bsc1246075 - CVE-2025-38396: fs: export anoninodemakesecureinode and fix secretm...

Tenda AC6 openSchedWifi function buffer overflow vulnerability

The Tenda AC6 is a wireless router from the Chinese company Tenda. A buffer overflow vulnerability exists in Tenda AC6 version 15.03.06.50, which is caused by the openSchedWifi function failing to properly validate the length of the input data, and can be exploited by an attacker to execute...

SUSE-SU-2025:3765-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP7)

This update for the Linux Kernel 6.4.0-15070051 fixes several issues. The following security issues were fixed: - CVE-2025-38678: netfilter: nftables: reject duplicate device on updates bsc1249534. - CVE-2025-38499: cloneprivatemnt: make sure that caller has CAPSYSADMIN in the right userns...

Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-53261: coresight: Fix memory leak in acpibuffer-pointer bsc1249770. CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disable...