kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

net: openvswitch: reject oversized nested action attrs

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Important: kernel-livepatch-6.12.80-106.156

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs CVE-2026-64531 In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600...

Important: kernel-livepatch-6.18.25-52.107

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs CVE-2026-64531 In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600...

Important: kernel-livepatch-6.12.90-120.164

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs CVE-2026-64531 In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600...

Important: kernel-livepatch-6.18.33-63.124

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs CVE-2026-64531 In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600...

Important: kernel-livepatch-6.18.35-68.129

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs CVE-2026-64531 In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600...

Important: kernel-livepatch-6.1.175-219.359

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs CVE-2026-64531 In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600...

CVE-2026-64531

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nlalen field is u16. Commit a1e64addf3ff "net: openvswitch: remove misbehaving actions length check" allowed the...

CVE-2026-64531

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nlalen field is u16. Commit a1e64addf3ff "net: openvswitch: remove misbehaving actions length check" allowed the...

CVE-2026-64531

CVE-2026-64531 describes a Linux kernel issue in net/openvswitch: generated flow actions stored as nlattrs can exceed the 16-bit nla_len, allowing an oversized container to be closed with a truncated length. The fix preserves large total-action streams but rejects nested action containers that do...

CVE-2026-64531

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nlalen field is u16. Commit a1e64addf3ff "net: openvswitch: remove misbehaving actions length check" allowed the...

CVE-2026-64531 net: openvswitch: reject oversized nested action attrs

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nlalen field is u16. Commit a1e64addf3ff "net: openvswitch: remove misbehaving actions length check" allowed the...

CVE-2026-64531 net: openvswitch: reject oversized nested action attrs

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nlalen field is u16. Commit a1e64addf3ff "net: openvswitch: remove misbehaving actions length check" allowed the...

CVE-2026-34097 Guardian Language-System XSS via id Parameter in text_file.php

Guardian language-system fails to sanitize the id GET parameter before inserting it into multiple HTML form action attributes in textfile.php lines 94, 101, 323, 403, 826, 852. An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session...

PT-2026-54734

Guardian language-system fails to sanitize the id GET parameter before inserting it into HTML source and form action attributes in media.php lines 119, 129. An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session...

CVE-2026-34097: Improper Neutralization of Input During Web Page Generation

Guardian language-system fails to sanitize the id GET parameter before inserting it into multiple HTML form action attributes in textfile.php lines 94, 101, 323, 403, 826, 852. An authenticated attacker can craft a URL that injects script tags executing in the victim's browser session...

CVE-2026-48217

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in deletemodule.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the multiple POST parameters modulechoice, flag, confirmation directly into render...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Do not clone flow post-action attributes a second time. The code already clones post-action attributes in mlx5ecloneflowattrforpostact. Creating another copy in mlx5etcpostactadd is an error remaining from the original...

CVE-2023-54262

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Don't clone flow post action attributes second time The code already clones post action attributes in mlx5ecloneflowattrforpostact. Creating another copy in mlx5etcpostactadd is a erroneous leftover from original...