CVE-2022-49878

kernel: bpf, verifier: Fix memory leak in array reallocation for stack state

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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 · July 22, 2026

Description

A flaw was found in the eBPF subsystem in the Linux kernel. An incorrect logic in a helper function for memory reallocation can cause memory leaks when a memory allocation error occurs, potentially leading to system instability and a denial of service.

Statement

This issue has been fixed in Red Hat Enterprise Linux 9.3 via RHSA-2023:6583 [1].

[1]. https://access.redhat.com/errata/RHSA-2023:6583

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