CVE-2022-49890

kernel: capabilities: fix potential memleak on error path from vfs_getxattr_alloc()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 1, 2025

Updated · June 30, 2026

Description

A flaw was found in the capabilities subsystem in the Linux kernel. When memory is allocated for a temporary buffer and a subsequent function call fails, the allocated memory is not released, resulting in a memory leak. This issue could impact system performance and result in a denial of service.

Statement

This issue has been fixed in Red Hat Enterprise Linux 8.9 via RHSA-2023:7077 [1].

The capabilities subsystem as shipped in Red Hat Enterprise Linux 9 is not affected by this vulnerability because the vulnerable code is not present.

[1]. https://access.redhat.com/errata/RHSA-2023:7077

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-401 · Missing Release of Memory after Effective Lifetime