Use-after-free in Valhall GPU Kernel Driver - CVE-2022-42716

Vulnerability identifier: #VU74386

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-42716

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

Valhall GPU Kernel Driver
Google Android
Samsung Mobile Firmware

Install updates from vendor's website.

Valhall GPU Kernel Driver - update to r41p0
Google Android - addressed in versions 11 2023-04-05, 12L 2023-04-05, 12 2023-04-05, 13 2023-04-05
Samsung Mobile Firmware - update to SMR-MAY-2023

• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• http://packetstormsecurity.com/files/170420/Arm-Mali-CSF-KBASE_REG_NO_USER_FREE-Unsafe-Use-Use-After-Free.html

• Use-after-free in ARM Mali Valhall GPU kernel driver
• Multiple vulnerabilities in Google Android
• Multiple vulnerabilities in Samsung Mobile Firmware