Use After Free in Arm Avalon GPU Kernel Driver
CVE-2022-46395
An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r0p0 through r32p0, Bifrost r0p0 through r41p0 before r42p0, Valhall r19p0 through r41p0 before r42p0, and Avalon r41p0 before r42p0.
Vulnerability class: Use-After-Free
EPSS: 0.027 (84.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Arm Avalon_gpu_kernel_driver — versions r41p0
- Arm Bifrost_gpu_kernel_driver
- Arm Midgard_gpu_kernel_driver
- Arm Valhall_gpu_kernel_driver
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2022-46395?
- CVE-2022-46395 is a high-severity vulnerability in Arm Avalon GPU Kernel Driver, classified under Use After Free. CVSS score: 8.8/10. Published 2023-03-06.
- How severe is CVE-2022-46395?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-46395 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.