CVE-2026-74710

high

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.

References

https://git.kernel.org/stable/c/cfb9d2976b277e554e28c165e3eff4b4a8ea10bd

https://git.kernel.org/stable/c/642c6e73fce17fdca93a5793c4d22359fda866d7

https://git.kernel.org/stable/c/21b8536aee819792f1b4b38b9aacf2a073025d49

https://git.kernel.org/stable/c/1bb30b181d9f0484e141f8411e15ed906d5c6780

Details

Source: Mitre, NVD

Published: 2026-08-22

Updated: 2026-08-22

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High