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CVE-2026-74710
xsk: require at least 16 bytes of TX metadata
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: xsk: require at least 16 bytes of TX metadata AF_XDP accepts a TX metadata length as small as eight bytes, but every supported request needs the flags plus at least one eight-byte request field. Such short metadata also lets the kernel read beyond the registered area. Require 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve compatibility with applications that do not use launch-time metadata.

Details
INFO

Published Date :

Aug. 22, 2026, 4:16 p.m.

Last Modified :

Aug. 22, 2026, 4:16 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-74710 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Update the Linux kernel to resolve metadata handling issues in AF_XDP.
  • Update the Linux kernel.
  • Ensure TX metadata is at least 16 bytes.
  • Compile applications with updated metadata handling.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-74710.

URL Resource
https://git.kernel.org/stable/c/1bb30b181d9f0484e141f8411e15ed906d5c6780
https://git.kernel.org/stable/c/21b8536aee819792f1b4b38b9aacf2a073025d49
https://git.kernel.org/stable/c/642c6e73fce17fdca93a5793c4d22359fda866d7
https://git.kernel.org/stable/c/cfb9d2976b277e554e28c165e3eff4b4a8ea10bd
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-74710 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-74710 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-74710 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-74710 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 22, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '341ac980eab90ac1f6c22ee9f9da83ed9604d899', 'lessThan': '21b8536aee819792f1b4b38b9aacf2a073025d49', 'versionType': 'git'}, {'status': 'affected', 'version': '341ac980eab90ac1f6c22ee9f9da83ed9604d899', 'lessThan': '642c6e73fce17fdca93a5793c4d22359fda866d7', 'versionType': 'git'}, {'status': 'affected', 'version': '341ac980eab90ac1f6c22ee9f9da83ed9604d899', 'lessThan': 'cfb9d2976b277e554e28c165e3eff4b4a8ea10bd', 'versionType': 'git'}, {'status': 'affected', 'version': '341ac980eab90ac1f6c22ee9f9da83ed9604d899', 'lessThan': '1bb30b181d9f0484e141f8411e15ed906d5c6780', 'versionType': 'git'}], 'programFiles': ['net/xdp/xdp_umem.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.8'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.104', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.45', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.9', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/xdp/xdp_umem.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: xsk: require at least 16 bytes of TX metadata AF_XDP accepts a TX metadata length as small as eight bytes, but every supported request needs the flags plus at least one eight-byte request field. Such short metadata also lets the kernel read beyond the registered area. Require 16 bytes rather than sizeof(struct xsk_tx_metadata) to preserve compatibility with applications that do not use launch-time metadata.
    Added Reference https://git.kernel.org/stable/c/1bb30b181d9f0484e141f8411e15ed906d5c6780
    Added Reference https://git.kernel.org/stable/c/21b8536aee819792f1b4b38b9aacf2a073025d49
    Added Reference https://git.kernel.org/stable/c/642c6e73fce17fdca93a5793c4d22359fda866d7
    Added Reference https://git.kernel.org/stable/c/cfb9d2976b277e554e28c165e3eff4b4a8ea10bd
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
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