Vulnerability identifier: #VU74389

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46394

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Valhall GPU Kernel Driver
Hardware solutions / Drivers
ARM Avalon GPU Kernel Driver
Hardware solutions / Drivers

Vendor: ARM

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error. A local application can execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Valhall GPU Kernel Driver: r39p0 - r41p0

ARM Avalon GPU Kernel Driver: r41p0

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External links
http://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
http://developer.arm.com/support/arm-security-updates

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.