SB20260828178 - Use-after-free in Linux kernel net driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20260828178

SB20260828178 - Use-after-free in Linux kernel net driver

Published: August 28, 2026

Security Bulletin ID SB20260828178
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2026-80613)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to cause a use-after-free.

The vulnerability exists due to a use-after-free in the veth XDP enablement error-handling logic when rolling back queue initialization after failed XDP rxq registration. A local user can trigger XDP enablement failure to cause a use-after-free.

The issue occurs because a previously added NAPI structure is left dangling in the device NAPI list and may later corrupt reallocated memory during device teardown.


Remediation

Install update from vendor's website.

References