CVE-2026-80681

Katalog CVE

CVSS 9.8 · Critical EPSS 0,50%

Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

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().

Rincian

Terbit di NVD

28 Agustus 2026

Terakhir diubah

29 Agustus 2026

Status NVD

Received

CVSS 3.1

9.8 (Critical), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 41,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1235e017aa11cf01e91b613c4c5ed6aa28934fff
• https://git.kernel.org/stable/c/1395a676ec15a0a02a2a6d86602324f2d5fd41d5
• https://git.kernel.org/stable/c/1511631b7cfc4152b10a0a9d04c7a0bf2ddf4585
• https://git.kernel.org/stable/c/1b7f7b653e3557690047c62f03b80a24ea5a58a5
• https://git.kernel.org/stable/c/2355c8c26d2aa1b4385b369e67202e47d460d555
• https://git.kernel.org/stable/c/6375093eb45cd7d89f1945f939eeae3b29d79f56
• https://git.kernel.org/stable/c/bf045341dfb3e767f0ff94cf240ce3c371973bd4
• https://git.kernel.org/stable/c/c9dceac9e1c7c772c43c732fc0d325e72835801a