CVE-2020-8992

kernel: soft lockup via a crafted journal size in ext4_protect_reserved_inode in fs/ext4/block_validity.c

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · February 11, 2020

Updated · June 28, 2026

Description

A vulnerability was found in ext4_protect_reserved_inode in the fs/ext4/block_validity.c function. This flaw allows an attacker to mount a crafted image with a large size inode journal, causing a denial of service.

Statement

The affected code was not introduced into any kernel versions shipped with Red Hat Enterprise Linux making this vulnerable not applicable to these platforms.

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-400 · Uncontrolled Resource Consumption