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CVE-2023-23003

kernel: missing check for return value of hashmap__new() in the function expr__ctx_new

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Severity

Moderate

Red Hat Product Security

4

CVSS 3.1

Review impact separately from score.

Published · December 18, 2021

Updated · November 21, 2025

Description

A NULL pointer dereference flaw was found in the Linux kernel’s Linux performance measurement and analysis tool. This flaw allows a local user to crash the system.

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 · 4
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H

CWE-252 · Unchecked Return Value