CVE-2026-89466

kernel: power: supply: qcom_battmgr: terminate the strings from firmware

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 11, 2026

Updated · September 29, 2026

Description

A flaw was found in the Linux kernel's qcom_battmgr component, responsible for power supply management. This vulnerability occurs due to improper string termination when handling firmware-provided strings. A malicious or malformed firmware string that completely fills its buffer can lead to an out-of-bounds read, potentially disclosing sensitive information from adjacent memory locations to user space.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-125 · Out-of-bounds Read