SB2026100703 - Out-of-bounds read in Linux kernel firmware driver

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Main Vulnerability Database SB2026100703

SB2026100703 - Out-of-bounds read in Linux kernel firmware driver

Published: October 7, 2026

Security Bulletin ID SB2026100703
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

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-2026-98363)

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

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


The vulnerability allows a local user to cause out-of-bounds reads and populate the operating performance point table with invalid entries.

The vulnerability exists due to an out-of-bounds read caused by a missing upper-bound check in scpi_dvfs_get_info() when processing operating performance point counts from SCP firmware replies. A local user can supply a firmware reply with a count greater than MAX_DVFS_OPPS to cause out-of-bounds reads and populate the operating performance point table with invalid entries.


Remediation

Install update from vendor's website.

References