SB20260507277 - Improper input validation in Linux kernel ipa reg driver

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Main Vulnerability Database SB20260507277

SB20260507277 - Improper input validation in Linux kernel ipa reg driver

Published: May 7, 2026

Security Bulletin ID SB20260507277
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) Improper input validation (CVE-ID: CVE-2026-43081)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in GENERIC_CMD register field masks in the net/ipa component when handling stop commands for the MPSS remote processor while IPA is active. A local user can trigger the affected operation to cause a denial of service.

The issue was observed as a kernel WARN when sending a stop command to the MPSS remote processor while IPA was up.


Remediation

Install update from vendor's website.

References