CVE Database›CVE-2022-50390

CVE-2022-50390

kernel: Linux kernel: Denial of Service and information disclosure via undefined bit shift in drm/ttm

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Severity

Moderate

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · September 18, 2025

Updated · July 22, 2026

Description

A flaw was found in the Linux kernel's drm/ttm component. A local user could exploit an undefined behavior in bit shifting, specifically when a signed 32-bit value is shifted by 31 bits, which cannot be represented in an 'int' type. This vulnerability could lead to local information disclosure, potentially revealing sensitive system details. Additionally, it can result in a kernel warning or panic, causing a Denial of Service (DoS) for the affected system.

Statement

This vulnerability is rated Low for Red Hat. The flaw in the Linux kernel's drm/ttm component, specifically an undefined behavior in bit shifting, could lead to local information disclosure and denial of service. This vulnerability could theoretically affect integrity, though it is unlikely and non-deterministic. Similarly, availability may be affected as the flaw can result in a kernel warning or panic.

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 · 4.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CWE-1335 · Incorrect Bitwise Shift of Integer