ROS-20260629-73-0034

The vulnerability in the net/sched/clsu32.c module of Linux kernel systems is related to insufficient resource control during its existence. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability in the net/sched/cls_u32.c module of Linux operating systems allows a hacker to trigger a service failure.

The vulnerability in the net/sched/clsu32.c module of Linux kernel systems is related to insufficient resource control during its existence. Exploiting this vulnerability could allow an attacker to cause a service failure...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

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

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

A use-after-free vulnerability exists in the Linux kernel’s net/sched:clsu32 component, which can be exploited to achieve local privilege escalation. When the u32change function is called on an existing filter, the entire tcfresult struct is always copied into the new instance of the filter. This...

SUSE-SU-2026:21591-1 Security update for the Linux Kernel (Live Patch 3 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.8.1 fixes various security issues The following security issues were fixed: - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI bsc1252048. - CVE-2025-71066: net/sched: ets: Always remove class from active list before...

SUSE-SU-2026:1698-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise kernel 6.4.0-150700.53.28 fixes various security issues The following security issues were fixed: - CVE-2025-71066: net/sched: ets: Always remove class from active list before deleting in etsqdiscchange bsc1258005. - CVE-2026-23004: dst: fix races in...

SUSE-SU-2026:21501-1 Security update for the Linux Kernel (Live Patch 7 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-29.1 fixes various security issues The following security issues were fixed: - CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size bsc1258073. - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI...

SUSE-SU-2026:21486-1 Security update for the Linux Kernel (Live Patch 16 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-39.1 fixes various security issues The following security issues were fixed: - CVE-2026-23004: dst: fix races in rt6uncachedlistdel and rtdeluncachedlist bsc1258655. - CVE-2026-23204: net/sched: clsu32: use skbheaderpointercareful bsc1259126....

SUSE-SU-2026:21507-1 Security update for the Linux Kernel RT (Live Patch 7 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-30.1 fixes various security issues The following security issues were fixed: - CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size bsc1258073. - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI...

kernel: 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:...

RHEL 8 : kernel (RHSA-2026:9515)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9515 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: clsu32: use...

Oracle Linux 10 : kernel (ELSA-2026-6632)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-6632 advisory. - net/mlx5: Fix ECVF vports unload on shutdown flow CKI Backport Bot RHEL-154540 CVE-2025-38109 - mm/damon/sysfs: cleanup attrs subdirs on context dir...

MiracleLinux 8 : kernel-4.18.0-553.115.1.el8_10 (AXSA:2026-389:23)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-389:23 advisory. kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem CVE-2025-38180 kernel: macvlan: fix error recovery in macvlancommonnewlink...

UBUNTU-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:...

EUVD-2026-5841

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:...

CVE-2026-23204

CVE-2026-23204 affects the Linux kernel net/sched cls_u32. The root cause is that skb_header_pointer() does not fully validate negative @offset values, enabling a slab-out-of-bounds condition in u32_classify() (reported as BUG: KASAN). The fix replaces skb_header_pointer() with skb_header_pointer...

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...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the insufficient validation provided by the clsu32 classifier using the skbheaderpointer function,...