CVE-2026-98491 net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up committing both but with different sets of extensions. The series of events: 1...

CVE-2026-98491 net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up committing both but with different sets of extensions. The series of events: 1...

CVE-2026-98491

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up committing both but with different sets of extensions. The series of events: 1...

CVE-2026-98490

A use-after-free (UAF) vulnerability exists in the Linux kernel 's Open vSwitch conntrack subsystem. The flaw occurs because a raw pointer to the extensions area is added to the expectations list during helper calls. If additional extensions are added via *_ext_add() calls before a connection is ...

CVE-2026-98490 net: openvswitch: conntrack: fix helper UAF due to extensions realloc

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport -...

CVE-2026-98490 net: openvswitch: conntrack: fix helper UAF due to extensions realloc

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport -...

EUVD-2026-103730

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport -...

CVE-2026-98490

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport -...

CLSA-2023-1683146027 kernel: Fix of 24 CVEs

media: rc: Fix use-after-free bugs caused by enetxirqsim CVE-2023-1118 - net: mpls: fix stale pointer if allocation fails during device rename CVE-2023-26545 - net/ulp: prevent ULP without clone op from entering the LISTEN status CVE-2023-0461 - Bluetooth: L2CAP: Fix u8 overflow CVE-2022-45934 -...

CLSA-2023-1683229770 kernel: Fix of 24 CVEs

media: rc: Fix use-after-free bugs caused by enetxirqsim CVE-2023-1118 - net: mpls: fix stale pointer if allocation fails during device rename CVE-2023-26545 - net/ulp: prevent ULP without clone op from entering the LISTEN status CVE-2023-0461 - Bluetooth: L2CAP: Fix u8 overflow CVE-2022-45934 -...

PT-2026-116709

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the openvswitch conntrack component. The problem occurs when a raw pointer to the extensions area is stored in the expectations list during the...

CVE-2026-98491: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up committing both but with different sets of extensions. The series of events: 1...

PT-2026-116710

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the openvswitch conntrack component where a shared unconfirmed connection tracking ct entry can be modified. When a socket buffer skb with an unconfirmed ct entry is...

CVE-2026-98490: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport -...

Linux Distros Unpatched Vulnerability : CVE-2026-98490

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: openvswitch: conntrack: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations...

MiracleLinux 8 : kernel-4.18.0-553.173.1.el8_10 (AXSA:2026-2075:102)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-2075:102 advisory. kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to cmsg...

Oracle Linux 8 : kernel (ELSA-2026-82807)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-82807 advisory. - drm/amdkfd: Add TLB flush after MES queue eviction/suspension Jocelyn Falempe RHEL-262108 CVE-2026-89811 - drm/amd/display: set newstream to NULL...

Rocky Linux 8 [CIQ] Security Update: kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc Multiple Vulnerabilities (crlsa-2026_82806)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202682806 advisory. kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to cmsg...

Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (crlsa-2026_82807)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202682807 advisory. kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to cmsg...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fixed the issue where GSO userspace truncation occurred. The OVSACTIONATTRTRUNC field currently stores a delta from the original skb length, stored in OVSCBskb-cutlen. When a later userspace action divides a GSO skb,...