CVE-2026-80681

A flaw was found in the Linux kernel's vxlan component. A use-after-free vulnerability exists due to improper handling of the Ethernet header pointer after routeshortcircuit is called. When pskbmaypull reallocates the skb-head, the previously cached Ethernet header pointer becomes stale, leading ...

Linux Distros Unpatched Vulnerability : CVE-2026-80599

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself i...

SUSE CVE-2026-80599

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

SUSE CVE-2026-80681

In the Linux kernel, the following vulnerability has been resolved: vxlan: re-fetch eth header after routeshortcircuit Before routeshortcircuit, the eth header pointer is cached from ethhdrskb. Inside routeshortcircuit, pskbmaypull can be called, which may reallocate skb-head. In this case,...

CVE-2026-80599

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

UBUNTU-CVE-2026-80599

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

CVE-2026-80681

In the Linux kernel, the following vulnerability has been resolved: vxlan: re-fetch eth header after routeshortcircuit Before routeshortcircuit, the eth header pointer is cached from ethhdrskb. Inside routeshortcircuit, pskbmaypull can be called, which may reallocate skb-head. In this case,...

CVE-2026-80601

In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskbmaypull called by batadvgetvid could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an...

CVE-2026-80599

CVE-2026-80599 affects the batman-adv module in the Linux kernel. The vulnerability is in the Distributed ARP Table (DAT) code path: batadv_dat_get_vid() (and its caller) reads the proto field of the ethernet header via batadv_get_vid() without first verifying that the underlying data is accessib...

CVE-2026-80599 batman-adv: dat: ensure accessible eth_hdr proto field

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible ethhdr proto field When batadvgetvid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

PT-2026-82899

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth hdr proto field When batadv get vid accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: Team: Fix null-ptr-deref when the team device type is changed. The null-ptr-deref bug occurs as follows with a reproducer 1. Bug: Kernel NULL pointer dereferencing. Address: 0000000000000228… … RIP:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable – validate the pppoe header Ensure that there is sufficient space to access the protocol field of the PPPoe header. Validate this once before the flowtable lookup, and then use a helper function to access the...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: tun: Added missing verification for short frames. The referenced commit failed to check the validity of the frame length in the tunxdpone path, which could result in a corrupted skb being sent down the stack. Even before the skb ...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: llc: A test for maclen should be performed before reading the MAC header. The LLC layer reads the MAC header using ethhdr, without verifying that the skb contains an Ethernet header. Syzbot was able to access the llcrcv functi...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: llc: Makes llcuisendmsg more robust against changes to bonding. syzbot was able to exploit llcuisendmsg, allocating a skb without sufficient headroom, and then attempting to append 14 bytes of Ethernet header information. Like...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: tap: added missing verification for short frames The referenced commit failed to check the validity of the frame length in the tapgetuserxdp function, which could result in a corrupted skb being sent down the stack. Even before t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: flowtable: accounting for the Ethernet header in nfflowpppoeproto syzbot discovered a potential access to uninit-value in nfflowpppoeproto The responsible commit forgot to account for the Ethernet header. BUG: KMSAN...

UBUNTU-CVE-2026-74701

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

PT-2026-79706

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in key extract When a packet arrives on an ARPHRD NONE device e.g. TUN, ovs flow key extract trusts the user-provided skb-protocol field: if it is ETH P TEB, the packet is classified ...