Use After Free in Arm Avalon GPU Kernel Driver
CVE-2022-46394
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 Valhall r39p0 through r41p0 before r42p0, and Avalon r41p0 before r42p0.
Vulnerability class: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (51.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Arm Avalon GPU Kernel Driver — versions r41p0
- Arm Valhall GPU Kernel Driver
Weakness classification (CWE)
Public proof-of-concept exploits
References
- developer.arm.com/support/arm-security-updates (Vendor Advisory)
- developer.arm.com/Arm Security Center/Mali GPU Driver Vulnerabilities (Vendor Advisory)
Frequently asked questions
- What is CVE-2022-46394?
- CVE-2022-46394 is a high-severity vulnerability in Arm Avalon GPU Kernel Driver, classified under Use After Free. CVSS score: 8.8/10. Published 2023-03-08.
- How severe is CVE-2022-46394?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-46394 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.