CVE-2025-21808

Published Feb 27, 2025

Last updated 18 days ago

CVSS high 7.8

Overview

Description
In the Linux kernel, the following vulnerability has been resolved: net: xdp: Disallow attaching device-bound programs in generic mode Device-bound programs are used to support RX metadata kfuncs. These kfuncs are driver-specific and rely on the driver context to read the metadata. This means they can't work in generic XDP mode. However, there is no check to disallow such programs from being attached in generic mode, in which case the metadata kfuncs will be called in an invalid context, leading to crashes. Fix this by adding a check to disallow attaching device-bound programs in generic mode.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Modified
Products
linux_kernel

Risk scores

CVSS 3.1

Type
Primary
Base score
5.5
Impact score
3.6
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending

  1. 🚨 CVE-2025-21808 ❓ 🏢 Linux - Linux 🏗️ 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 🔗 https://t.co/7WJA3ALJaM 🔗 https://t.co/3im47wjgrw 🔗 https://t.co/JO8bvFfc86 🔗 https://t.co/xl0h9zfwLP #CyberCron #VulnAlert @Linux https://t.co/kL5STK3JtM

    @cybercronai

    1 Mar 2025

    5 Impressions

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Configurations

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References

Sources include official advisories and independent security research.