CVE-2022-50811

kernel: erofs: fix missing unmap if z_erofs_get_extent_compressedlen() fails

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · June 30, 2026

Description

A resource leak flaw was found in the Linux kernel's EROFS filesystem. When z_erofs_get_extent_compressedlen() fails, the corresponding meta buffer is not properly unmapped, leading to a memory leak over time.

Statement

This is a minor memory leak in the EROFS filesystem that requires mounting a malformed EROFS image to trigger. The leak occurs only on error paths and does not lead to crashes or data exposure, limiting practical impact.

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 · 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE-772 · Missing Release of Resource after Effective Lifetime