Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: pagepool: Always add GFPNOWARN for ATOMIC allocations. Driver authors often forget to include GFPNOWARN when allocating pages from the datapath. This is annoying for users, as OOM Out-of-Memory conditions are common. We can expec...

New OVSwrap Linux Kernel Flaw Lets Local Users Gain Root via Open vSwitch

A memory corruption flaw in the Linux kernel's Open vSwitch datapath gives ordinary local users a path to root on a broad set of default-configured distributions, and a public exploit ships with pre-built records for roughly 800 kernel builds. The vulnerability, tracked asCVE-2026-64531CVSS score...

PT-2026-61590

⚠️ Linux Fast Datapath for RHEL 9 alert: CVE-2026-14957 CVSS 7.5 Refer to the vendor advisory for the confirmed security impact. Apply the vendor-recommended mitigation. https://t.co/9ZyL1YrKE5 Linux FastDatapathforRHEL9 CyberSecurity CVE...

CVE-2026-53080

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL dereference of "old" filters before change Like pointed out by Sashiko 1, since commit ed76f5edccc9 "net: sched: protect filterchain list with filterchainlock mutex" TC filters are added to a shared blo...

kernel: net: openvswitch: Avoid releasing netdev before teardown completes

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Avoid releasing netdev before teardown completes The patch cited in the Fixes tag below changed the teardown code for OVS ports to no longer unconditionally take the RTNL. After this change, the netdevdestroy...

kernel: net: openvswitch: Avoid releasing netdev before teardown completes

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Avoid releasing netdev before teardown completes The patch cited in the Fixes tag below changed the teardown code for OVS ports to no longer unconditionally take the RTNL. After this change, the netdevdestroy...

Important: Red Hat Security Advisory: ovn25.03 security update

An update for ovn25.03 is now available for Fast Datapath for Red Hat Enterprise Linux 10. 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 each...

Important: Red Hat Security Advisory: ovn25.09 security update

An update for ovn25.09 is now available for Fast Datapath for Red Hat Enterprise Linux 10. 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 each...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: openvswitch: Fixed a memory leak that occurred during failed datapath creation. ovsdpcmdnew - ovsdpchange - ovsdpsetupcallportids allocates an array using kmalloc. If newvport fails during ovsdpcmdnew, dp-upcallportids must be...

Astra Linux – Vulnerability in OpenVSwitch

A flaw was discovered in OpenVSwitch OVS. When processing an IP packet with protocol 0, OVS will install a datapath flow without modifying the IP header. This issue results in the installation of a datapath flow that matches all IP protocols with “nwproto” set to wildcard, but with an incorrect...

Linux Distros Unpatched Vulnerability : CVE-2026-43248

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - vhost: move vdpa group bound check to vhostvdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. Whi...

EUVD-2026-27345

A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in...

CVE-2026-34956

A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in...

CVE-2026-34956 Openvswitch: open vswitch: denial of service via malformed ftp epasv command

A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in...

CVE-2026-34956

A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in...

CVE-2026-34956 Openvswitch: open vswitch: denial of service via malformed ftp epasv command

A flaw was found in Open vSwitch. When Open vSwitch is configured with a conntrack flow using FTP helpers over the userspace datapath, a remote attacker can send a specially crafted FTP stream with an EPASV command exceeding 255 characters. This heap access error can lead to a crash, resulting in...

CVE-2026-34956

CVE-2026-34956 affects Open vSwitch: the vulnerability is in the userspace conntrack FTP ALG handler where a crafted FTP payload (EPASV/FTP substrings) can trigger an invalid memory access due to type narrowing when copying FTP substrings. This memory access can crash the process, causing Denial ...

Important: Red Hat Security Advisory: ovn24.03 security update

An update for ovn24.03 is now available for Fast Datapath for Red Hat Enterprise Linux 9. 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 each...

Important: Red Hat Security Advisory: ovn25.09 security update

An update for ovn25.09 is now available for Fast Datapath for Red Hat Enterprise Linux 9. 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 each...

Important: Red Hat Security Advisory: ovn23.09 security update

An update for ovn23.09 is now available for Fast Datapath for Red Hat Enterprise Linux 9. 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 each...