CVE-2022-46891

Published: Jan 17, 2023Modified: Jun 17, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

An issue was discovered in the Arm Mali GPU Kernel Driver. There is a use-after-free. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r13p0 through r32p0, Bifrost r1p0 through r40p0, and Valhall r19p0 through r40p0.

Affected (3)

Products: Arm: Bifrost Gpu Kernel Driver, Midgard Gpu Kernel Driver, Valhall Gpu Kernel Driver

3 products

Bifrost Gpu Kernel Driver

Midgard Gpu Kernel Driver

Valhall Gpu Kernel Driver

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Arm Bifrost Gpu Kernel Driver	From r1p0 to r40p0
Arm Midgard Gpu Kernel Driver	From r13p0 to r32p0
Arm Valhall Gpu Kernel Driver	From r19p0 to r40p0

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

Source: cve@mitre.org

Vendor Advisory

https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.