SB2026102439 - Out-of-bounds read in Linux kernel marvell libertas driver

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Main Vulnerability Database SB2026102439

SB2026102439 - Out-of-bounds read in Linux kernel marvell libertas driver

Published: October 24, 2026

Security Bulletin ID SB2026102439
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) Out-of-bounds read (CVE-ID: CVE-2026-98890)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to trigger an out-of-bounds kernel memory read, potentially causing a denial of service.

The vulnerability exists due to an out-of-bounds read in the Linux kernel libertas driver's lbs_hard_start_xmit() function when processing short transmit frames in monitor mode. A local privileged user can submit a frame containing insufficient data for the radiotap TX header and the 802.11 destination address field to trigger a read beyond the socket buffer data, potentially causing a kernel crash.


Remediation

Install update from vendor's website.

References