CVE-2022-49875

kernel: bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE

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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 bpftool distributed by the Linux kernel. A NULL pointer dereference can be triggered when bpftool is used to pin PROG, MAP, LINK without FILE due to a missing validation. This issue can result in 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-476 · NULL Pointer Dereference