Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: Bridge: Multicast packets must be confirmed before being passed up the stack. The conntrack/nfconfirm logic does not handle cloned skb objects that reference the same nfct entry. This issue occurs when dealing with...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988736)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988736 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing,...

kernel: netfilter: bridge: confirm multicast packets before passing them up the stack

A security vulnerability was identified in the Linux kernel's netfilter subsystem, specifically affecting the handling of multicast and broadcast packets on network bridges. The issue arises from a race condition in the connection tracking conntrack module when processing cloned socket buffers sk...

kernel: netfilter: bridge: confirm multicast packets before passing them up the stack

A security vulnerability was identified in the Linux kernel's netfilter subsystem, specifically affecting the handling of multicast and broadcast packets on network bridges. The issue arises from a race condition in the connection tracking conntrack module when processing cloned socket buffers sk...

kernel: netfilter: bridge: confirm multicast packets before passing them up the stack

A security vulnerability was identified in the Linux kernel's netfilter subsystem, specifically affecting the handling of multicast and broadcast packets on network bridges. The issue arises from a race condition in the connection tracking conntrack module when processing cloned socket buffers sk...

PT-2025-8494 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability in the Linux kernel has been resolved, related to netfilter: conntrack. The issue occurs when the conntrack is clashing, and insertion can free skb- nfct and set skb-...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. 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 available for...