CVE-2022-2991

kernel: heap-based overflow in LightNVM Subsystem may lead to privilege escalation

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Severity

Important

Red Hat Product Security

8.2

CVSS 3.1

Review impact separately from score.

Published · July 11, 2022

Updated · November 22, 2025

Description

A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability.

Statement

Red Hat Enterprise Linux is not affected by this flaw as CONFIG_NVM is not enabled in any current shipping kernels.

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 · 8.2
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CWE-122 · Heap-based Buffer Overflow