SB2026100736 - Incorrect Calculation of Buffer Size in Linux kernel mac80211

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Main Vulnerability Database SB2026100736

SB2026100736 - Incorrect Calculation of Buffer Size in Linux kernel mac80211

Published: October 7, 2026

Security Bulletin ID SB2026100736
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Incorrect Calculation of Buffer Size (CVE-ID: CVE-2026-98328)

CWE-ID: CWE-131 - Incorrect Calculation of Buffer Size

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local user to disrupt wireless scanning.

The vulnerability exists due to incorrect calculation of the probe request element buffer size in the mac80211 wireless subsystem when building probe request elements. A local user can initiate a wireless scan to disrupt wireless scanning.

The issue requires hardware support for 6 GHz. The HE 6 GHz Band Capability element is included in probe requests for every band when this support is present.


Remediation

Install update from vendor's website.

References