kernel: openvswitch: Fix CT limit teardown use-after-free

A flaw was found in the Linux kernel's Open vSwitch OVS component. An unprivileged user, operating from a user and network namespace, can trigger a use-after-free vulnerability during network namespace teardown. This occurs because packet processing attempts to use connection tracking CT limit...

kernel: openvswitch: Fix CT limit teardown use-after-free

A flaw was found in the Linux kernel's Open vSwitch OVS component. An unprivileged user, operating from a user and network namespace, can trigger a use-after-free vulnerability during network namespace teardown. This occurs because packet processing attempts to use connection tracking CT limit...

kernel: openvswitch: Fix CT limit teardown use-after-free

A flaw was found in the Linux kernel's Open vSwitch OVS component. An unprivileged user, operating from a user and network namespace, can trigger a use-after-free vulnerability during network namespace teardown. This occurs because packet processing attempts to use connection tracking CT limit...

kernel: openvswitch: Fix CT limit teardown use-after-free

A flaw was found in the Linux kernel's Open vSwitch OVS component. An unprivileged user, operating from a user and network namespace, can trigger a use-after-free vulnerability during network namespace teardown. This occurs because packet processing attempts to use connection tracking CT limit...

ovswrap-poc

ovswrap-poc CVE-2026-64531 OVSwrap PoC - Linux kernel Open vSwitch LPE; for patch validation and security research...

Detection-and-Mitigation-for-CVE-2022-2639

Detection-and-Mitigation-for-CVE-2022-2639 Description The Open vSwitch kernel module allows flexible userspace control over flow-level packet processing on selected network devices. It can be used to implement a plain Ethernet switch, network device bonding, VLAN processing, network access...

CVE-2026-64531

CVE-2026-64531 — OVSwrap Linux kernel Open vSwitch module local privilege escalation normal user → root PoC. Exploits the integer wraparound of the 16-bit nlalen field to escalate from a normal user all the way to root. Vulnerability Summary When the nested action stream generated by OVS exceeds...

OVSwrap-CVE-2026-64531-Mitigation-Tool

OVSwrap CVE-2026-64531 Mitigation Tool A simple script that detects and mitigates the OVSwrap vulnerability affecting Open vSwitch kernel modules. Features Detects vulnerable Open vSwitch modules Determines whether the module is loaded Blocks automatic loading Removes the module safely Verifies...

OVSwrap

OVSwrap CVE-2026-64531 Writeup !WARNING The PoC is provided solely to help defenders, maintainers, and authorized security teams validate patches, mitigations, detections, and exposure on systems they own or are explicitly authorized to test. You are solely responsible for ensuring that your use ...

dirtychains

DirtyChains !This project was written by AI! A collection of...

dirtyfrag

DirtyFrag !This project was written by AI! A collection of Li...

ovswrap

OVSwrap — Linux kernel Open vSwitch datapath overflow tracking site Source for the OVSwrap patch-status tracker: a single-page site recording which distributions have shipped a fix for the Open vSwitch datapath overflow in the Linux kernel. Where the facts live Everything about the bug — CVE IDs,...

CVE-2026-64531

🔥 CVE-2026-64531 — OVSwrap Linux Kernel Open vSwitch Memory Corruption 🩸 Vulnerability Overview CVE-2026-64531 is a security vulnerability affecting the Linux Kernel Open vSwitch OVS networking subsystem. The flaw exists in the handling of Netlink nested attributes , where oversized action...

CVE-2026-99088

A flaw was found in the Linux kernel's Open vSwitch component. When performing address rewriting actions on non-first IPv6 packet fragments, the system attempts to calculate checksums using an uninitialized transport header offset. An attacker sending specially crafted IPv6 network traffic could...

CVE-2026-99025

A flaw was found in the Linux kernel's Open vSwitch component. A local attacker can cause a Denial of Service DoS by initiating a Netlink flow dump while the system is processing heavy network traffic. In this scenario, the dumping thread repeatedly processes pending software interrupts without...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-146624)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-146624 advisory. In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't skbtxerror the source skb in skbzerocopy skbzerocopy copies frags from @from...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-146811)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-146811 advisory. In the Linux kernel, the following vulnerability has been resolved: net: mpls: clear innerprotocol when the last label is popped skbmplspush records the...

kernel: openvswitch: defer tunnel netdev_put to RCU release

A flaw was found in the Linux kernel's Open vSwitch OVS component. A race condition can occur during the destruction of a network device netdev tunnel, where the ovsnetdevtunneldestroy function may attempt to release a device reference while other parts of the system are still actively using it...

CVE-2026-98491

A flaw was found in the Linux kernel's Open vSwitch subsystem. When cloned network packet buffers share an unconfirmed connection tracking entry, committing the entry with conflicting extensions can trigger a use-after-free memory issue during cleanup. An attacker could exploit this vulnerability...

CVE-2026-98490

A flaw was found in the Linux kernel's Open vSwitch subsystem. When connection tracking helpers process unconfirmed connections, subsequent memory reallocations for extensions can leave a dangling pointer in the connection expectations list. An attacker can exploit this issue by sending specially...