CVE-2026-80681
CVE CVE-2026-80681EUVD EUVD-2026-67557Published 2026-08-28T06:52:48.000ZLast changed 2026-08-29T06:22:07.000ZCVSS 9.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: vxlan: re-fetch eth header after route_shortcircuit() Before route_shortcircuit(), the eth header pointer is cached from eth_hdr(skb). Inside route_shortcircuit(), pskb_may_pull() can be called, which may reallocate skb->head. In this case, returning to vxlan_xmit() leaves the cached eth pointer pointing to freed memory, leading to a use-after-free when dereferencing eth->h_dest. Fix this by updating eth = eth_hdr(skb) after calling route_shortcircuit().
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux ae8840825605f36f98f247323edc150e761cb64e <1235e017aa11cf01e91b613c4c5ed6aa28934fff; patch: 6.6.151; ae8840825605f36f98f247323edc150e761cb64e <c9dceac9e1c7c772c43c732fc0d325e72835801a; patch: 5.15.216; ae8840825605f36f98f247323edc150e761cb64e <1b7f7b653e3557690047c62f03b80a24ea5a58a5; patch: 5.10.265; ae8840825605f36f98f247323edc150e761cb64e <bf045341dfb3e767f0ff94cf240ce3c371973bd4; patch: 6.1.183; ae8840825605f36f98f247323edc150e761cb64e <1395a676ec15a0a02a2a6d86602324f2d5fd41d5; 3.10; patch: 6.18.44; ae8840825605f36f98f247323edc150e761cb64e <1511631b7cfc4152b10a0a9d04c7a0bf2ddf4585; ae8840825605f36f98f247323edc150e761cb64e <2355c8c26d2aa1b4385b369e67202e47d460d555; patch: 6.12.103; patch: 7.2; patch: 7.1.8; ae8840825605f36f98f247323edc150e761cb64e <6375093eb45cd7d89f1945f939eeae3b29d79f56; patch: 0
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.