CVE-2022-50845

kernel: Linux kernel (ext4): Denial of Service due to inode leak via failed extended attribute creation

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · December 30, 2025

Updated · June 30, 2026

Description

A flaw was found in the Linux kernel's ext4 filesystem. A local user can exploit this vulnerability by performing a setxattr operation with an injected fault, specifically when ext4_mark_inode_dirty() fails within the ext4_xattr_inode_create() function. This can lead to an inode leak, resulting in filesystem errors and a potential Denial of Service (DoS) due to resource exhaustion.

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-772 · Missing Release of Resource after Effective Lifetime