CVE-2022-49956

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

18/06/2025

Last modified:

17/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don&#39;t do anything except free the "pcmd" pointer. It results in a use after free. Delete them.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.37 (including)	4.9.328 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.293 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.258 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.213 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.142 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.66 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.19.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.0:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.0:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.0:rc3::::::

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

CVE-2022-49956

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools