CVE-2025-38230

kernel: jfs: validate AG parameters in dbMount() to prevent crashes

Loading…

Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · July 4, 2025

Updated · September 13, 2026

Description

A flaw was found in the Linux kernel's JFS filesystem. A local attacker could exploit this vulnerability by mounting a specially crafted JFS filesystem with malformed parameters. This could lead to a system crash, resulting in a Denial of Service (DoS). The improper validation of these parameters could also lead to undefined behavior, potentially allowing for more severe impacts.

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 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-1335 · Incorrect Bitwise Shift of Integer