CVE-2022-50048

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

18/06/2025

Last modified:

13/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: possible module reference underflow in error path dst->ops is set on when nft_expr_clone() fails, but module refcount has not been bumped yet, therefore nft_expr_destroy() leads to module reference underflow.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.63 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.19.4 (excluding)
cpe:2.3:o:linux:linux_kernel:6.0:rc1::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-50048

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools