Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2022-50192

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
18/06/2025
Last modified:
19/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> spi: tegra20-slink: fix UAF in tegra_slink_remove()<br /> <br /> After calling spi_unregister_master(), the refcount of master will<br /> be decrease to 0, and it will be freed in spi_controller_release(),<br /> the device data also will be freed, so it will lead a UAF when using<br /> &amp;#39;tspi&amp;#39;. To fix this, get the master before unregister and put it when<br /> finish using it.

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:*:*:*:*:*:*:*:* 5.15 (including) 5.15.61 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 5.18.18 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.19 (including) 5.19.2 (excluding)

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


References to Advisories, Solutions, and Tools