Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the functions nftnetdevunregisterhooks and nftunregisterflowtablenethooks not using listdelrcu,...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net: macsec: Fixed the offload support for the NETDEVUNREGISTER event. The current macsec netdev notify handler handles the NETDEVUNREGISTER event by releasing only the relevant software resources. This can lead to resource leaks...

PT-2026-40686

In the Linux kernel, the following vulnerability has been resolved: net: usb: lan78xx: fix WARN in netif napi del locked on disconnect Remove redundant netif napi del call from disconnect path. A WARN may be triggered in netif napi del locked during USB device disconnect: WARNING: CPU: 0 PID: 11 ...

CVE-2026-43219

In the Linux kernel, the following vulnerability has been resolved: net: cpswnew: Fix potential unregister of netdev that has not been registered yet If an error occurs during registernetdev for the first MAC in cpswregisterports, even though cpsw-slaves0.ndev is set to NULL, cpsw-slaves1.ndev...

CVE-2026-43167 xfrm: always flush state and policy upon NETDEV_UNREGISTER event

In the Linux kernel, the following vulnerability has been resolved: xfrm: always flush state and policy upon NETDEVUNREGISTER event syzbot is reporting that "struct xfrmstate" refcount is leaking. unregisternetdevice: waiting for netdevsim0 to become free. Usage count = 2 reftracker:...

Linux Distros Unpatched Vulnerability : CVE-2026-43167

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: always flush state and policy upon NETDEVUNREGISTER event syzbot is reporting that struct xfrmstate refcount is leaking. unregisternetdevice: waiting for...

PT-2026-37507

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A reference count leak occurs in struct xfrm state within the Linux kernel. This issue arises because the xfrm dev unregister function was implemented as a no-op, even though xfrm dev...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - Ice: Fixed the KASAN error in the LAG NETDEVUNREGISTER handler. Currently, the same handler is called for both the NETDEVBONDINGINFO LAG unlink notification and the NETDEVUNREGISTER call. This causes a problem, as the...

CVE-2026-43012 net/mlx5: Fix switchdev mode rollback in case of failure

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix switchdev mode rollback in case of failure If for some internal reason switchdev mode fails, we rollback to legacy mode, before this patch, rollback will unregister the uplink netdev and leave it unregistered causin...

CVE-2026-31678

In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdevput to RCU release ovsnetdevtunneldestroy may run after NETDEVUNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe...

PT-2026-35138

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Open vSwitch component of the Linux kernel. The ovs netdev tunnel destroy function may execute after the NETDEV UNREGISTER process has already detached the...

CVE-2026-23436

A flaw was found in the Linux kernel's network shaper module. A race condition can occur when a network device netdev is unregistered while its hierarchy is being created. This timing issue may allow the system to allocate resources that are not properly released, leading to a memory leak...

CVE-2026-23437

A flaw was found in the Linux kernel's net: shaper module. This vulnerability arises from a missing liveness check during Netlink operations when a network device netdev is referenced and subsequently accessed. If the netdev is unregistered before the access, it can lead to a use-after-free...

CVE-2026-23436

In the Linux kernel, the following vulnerability has been resolved: net: shaper: protect from late creation of hierarchy We look up a netdev during prep of Netlink ops pre- callbacks and take a ref to it. Then later in the body of the callback we take its lock or RCU which are the actual...

CVE-2026-23436

The CVE-2026-23436 issue affects the Linux kernel's net: shaper component. A race could occur when a netdev is unregistered between taking a reference during Netlink prep and locking/RCU in the callback, potentially leaking the hierarchy after a flush. The fix applies the instance lock in pre- st...

CVE-2025-71182 can: j1939: make j1939_session_activate() fail if device is no longer registered

In the Linux kernel, the following vulnerability has been resolved: can: j1939: make j1939sessionactivate fail if device is no longer registered syzbot is still reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 even after commit 93a27b5891b8 "can: j1939: add missing...

CVE-2025-71182

In the Linux kernel, the following vulnerability has been resolved: can: j1939: make j1939sessionactivate fail if device is no longer registered syzbot is still reporting unregisternetdevice: waiting for vcan0 to become free. Usage count = 2 even after commit 93a27b5891b8 "can: j1939: add missing...

Linux Distros Unpatched Vulnerability : CVE-2025-71182

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - can: j1939: make j1939sessionactivate fail if device is no longer registered syzbot is still reporting unregisternetdevice: waiting for vcan0 to become free...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

MiracleLinux 9 : kernel-5.14.0-611.13.1.el9_7 (AXSA:2025-11544:99)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-11544:99 advisory. kernel: can: j1939: implement NETDEVUNREGISTER notification handler CVE-2025-39925 kernel: net/mlx5: fs, fix UAF in flow counter release...