CVE-2026-97965

The Linux kernel contains a vulnerability in the vxlan component where a packet transmitted through a device configured with VXLAN_F_COLLECT_METADATA and VXLAN_F_GBP can cause information leakage. If the external ip_tunnel_info lacks the IP_TUNNEL_VXLAN_OPT_BIT flag, the md pointer remains pointi...

CVE-2026-97965

In the Linux kernel, the following vulnerability has been resolved: vxlan: initialize md in vxlanxmitone If a VXLAN device is configured with both VXLANFCOLLECTMETADATA and VXLANFGBP, and a packet is transmitted through it using an external iptunnelinfo that lacks the IPTUNNELVXLANOPTBIT flag, md...

EUVD-2026-86819

In the Linux kernel, the following vulnerability has been resolved: vxlan: initialize md in vxlanxmitone If a VXLAN device is configured with both VXLANFCOLLECTMETADATA and VXLANFGBP, and a packet is transmitted through it using an external iptunnelinfo that lacks the IPTUNNELVXLANOPTBIT flag, md...

CVE-2026-97965 vxlan: initialize _md in vxlan_xmit_one()

In the Linux kernel, the following vulnerability has been resolved: vxlan: initialize md in vxlanxmitone If a VXLAN device is configured with both VXLANFCOLLECTMETADATA and VXLANFGBP, and a packet is transmitted through it using an external iptunnelinfo that lacks the IPTUNNELVXLANOPTBIT flag, md...

CVE-2025-68353: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: vxlan: prevent NULL deref in vxlanxmitone Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlanxmitone, e.g. if the iface is brought down. This can lead to the following NULL dereference: BUG: kernel NULL...

CVE-2021-47309

In the Linux kernel, the following vulnerability has been resolved: net: validate lwtstate-data before returning from skbtunnelinfo skbtunnelinfo returns pointer of lwtstate-data as iptunnelinfo type without validation. lwtstate-data can have various types such as mplsiptunnelencap, etc and these...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. 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...