Linux Distros Unpatched Vulnerability : CVE-2026-23459

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats...

SUSE CVE-2026-23459

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

EUVD-2026-18718

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-23459

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

UBUNTU-CVE-2026-23459

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-23459

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-23459

The CVE-2026-23459 issue affects the Linux kernel IP tunnel code, specifically iptunnel_xmit_stats(). The bug arose because the function assumed tunnels used NETDEV_PCPU_STAT_TSTATS, while vxlan/geneve tunnels call udp_tunnel[6]_xmit_skb() and read NETDEV_PCPU_STAT_DSTATS, creating potential data...

CVE-2026-23459 ip_tunnel: adapt iptunnel_xmit_stats() to NETDEV_PCPU_STAT_DSTATS

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

CVE-2026-23459 ip_tunnel: adapt iptunnel_xmit_stats() to NETDEV_PCPU_STAT_DSTATS

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

PT-2026-30153

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contained an issue within the ip tunnel module where the iptunnel xmit stats function incorrectly assumed tunnels only used NETDEV PCPU STAT TSTATS. This occurred becaus...

CVE-2026-23459: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iptunnel: adapt iptunnelxmitstats to NETDEVPCPUSTATDSTATS Blamed commits forgot that vxlan/geneve use udptunnel6xmitskb which call iptunnelxmitstats. iptunnelxmitstats was assuming tunnels were only using NETDEVPCPUSTATTSTATS...

SUSE CVE-2026-23276

In the Linux kernel, the following vulnerability has been resolved: net: add xmit recursion limit to tunnel xmit functions Tunnel xmit functions iptunnelxmit, ip6tunnelxmit lack their own recursion limit. When a bond device in broadcast mode has GRE tap interfaces as slaves, and those GRE tunnels...

kernel: netfilter: nft_tunnel: fix geneve_opt type confusion addition

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfttunnel: fix geneveopt type confusion addition When handling multiple NFTATUNNELKEYOPTSGENEVE attributes, the parsing logic should place every geneveopt structure one by one compactly. Hence, when deciding the next...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 9 : kernel (RHSA-2026:4011)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:4011 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: x86/tdx: Fix in-kernel MMIO...

SUSE-SU-2026:0290-1 Security update for openvswitch3

This update for openvswitch3 fixes the following issues: Update to v3.1.7: - CVE-2023-3966: openvswitch, openvswitch3: Invalid memory access in Geneve with HW offload bsc1219465. - CVE-2024-2182: openvswitch: ov: insufficient validation of incoming BFD packets may lead to denial of service...

Security update for openvswitch

This update for openvswitch fixes the following issues: Update to v3.1.7: CVE-2023-3966: openvswitch, openvswitch3: Invalid memory access in Geneve with HW offload bsc1219465. CVE-2024-2182: openvswitch: ov: insufficient validation of incoming BFD packets may lead to denial of service bsc1255435...

Azure Linux 3.0 Security Update: kernel (CVE-2025-22055)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-22055 advisory. - In the Linux kernel, the following vulnerability has been resolved: net: fix geneveopt length integer overfl...

Azure Linux 3.0 Security Update: kernel (CVE-2025-21858)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-21858 advisory. - In the Linux kernel, the following vulnerability has been resolved: geneve: Fix use-after-free in...

ROS-20260120-7301

A vulnerability in the genevefinddev function of the drivers/net/geneve.c component of the Linux kernel is related to memory usage after it has been freed. Exploitation of the vulnerability may allow an attacker to gain access to confidential data, violate its integrity, and cause a denial of...