CVE-2022-48923

kernel: btrfs: prevent copying too big compressed lzo segment

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 22, 2024

Updated · August 5, 2026

Description

A flaw was found in the btrfs module in the Linux kernel. A too-big compressed lzo segment can cause an out-of-bounds write when copied due to a missing check of its size, potentially causing a general protection fault and a denial of service.

Statement

The btrfs module is not built in the kernel shipped in Red Hat Enterprise Linux 8 and 9, so it is not affected by this vulnerability.

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-787 · Out-of-bounds Write