RLSA-2026:6153 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem CVE-2025-38180 kernel: drm/sched: Fix potential double free in drmschedjobaddresvdependencies CVE-2025-40096 kernel: Linux...

ROS-20260407-73-0008

A vulnerability in the net/sched/schhfsc.c module of the Linux operating system kernel is related to the ability to use memory after it has been freed. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: fs/xattr: missing fdput in fremovexattr error path CVE-2024-14027 In the Linux kernel, the following vulnerability has been resolved: audit: add fchmodat2 to change attributes class CVE-2025-71239 In the Linux...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer bsc1238917. CVE-2025-40242: gfs2: Fix unlikely race in gdlmputlock bsc1255075...

CVE-2026-23277

In the Linux kernel, the following vulnerability has been resolved: net/sched: teql: fix NULL pointer dereference in iptunnelxmit on TEQL slave xmit teqlmasterxmit calls netdevstartxmitskb, slave to transmit through slave devices, but does not update skb-dev to the slave device beforehand. When a...

CVE-2026-23245

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgate: snapshot parameters with RCU on replace The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list. Convert the parameters to an RCU-protected snapshot and swap update...

CVE-2026-23204

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23204 net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

Linux Distros Unpatched Vulnerability : CVE-2026-23204

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Ki...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Siemens SCALANCE and RUGGEDCOM Improper Input Validation (CVE-2025-38350)

In the Linux kernel, the following vulnerability has been resolved: net/sched: Always pass notifications when child class becomes empty Certain classful qdiscs may invoke their classes' dequeue handler on an enqueue operation. This may unexpectedly empty the child qdisc and thus make an in-flight...

CVE-2026-23105

In the Linux kernel, the following vulnerability has been resolved: net/sched: qfq: Use clisactive to determine whether class is active in qfqrmfromag This is more of a preventive patch to make the code more consistent and to prevent possible exploits that employ child qlen manipulations on qfq...

CVE-2026-23064

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: avoid possible NULL deref tcfifeencode must make sure ifeencode does not return NULL. syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1 SMP KASAN NOP...

Linux Distros Unpatched Vulnerability : CVE-2026-23074

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/sched: Enforce that teql can only be used as root qdisc Design intent of teql is that it...

RHEL 10 : kernel (RHSA-2026:1727)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:1727 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ntbhwswitchtec: Fix...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005183)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005183 advisory. In the Linux kernel, the following vulnerability has been resolved: net: sched: Disallow replacing of child qdisc from one parent to another Lion Ackermann was able ...

AZL-77133 CVE-2026-22999 affecting package kernel for versions less than 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: do not free existing class in qfqchangeclass Fixes qfqchangeclass error case. cl-qdisc and cl should only be freed if a new class and qdisc were allocated, or we risk various UAF...

Azure Linux 3.0 Security Update: kernel (CVE-2024-40995)

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-2024-40995 advisory. - In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: fix possible infinite...

CVE-2026-22976

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix NULL deref when deactivating inactive aggregate in qfqreset qfqclass-leafqdisc-q.qlen 0 does not imply that the class itself is active. Two qfqclass objects may point to the same leafqdisc. This happens whe...

CVE-2026-22976 net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix NULL deref when deactivating inactive aggregate in qfqreset qfqclass-leafqdisc-q.qlen 0 does not imply that the class itself is active. Two qfqclass objects may point to the same leafqdisc. This happens whe...