CVE-2022-46891: arm bifrost_gpu_kernel_driver Use After Free
CVSS: 8.8v3.1HighModified
Published 17-01-2023Last modified 27-11-2024
Vulnerability summary
CVE-2022-46891 is a high (CVSS 8.8) Use After Free vulnerability in arm bifrost_gpu_kernel_driver. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 17-01-2023PublishedVulnerability first disclosed.
- 27-11-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 20-09-2026
20-09-202620-10-2026
EPSS score0.81%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Arm3 products
- bifrost_gpu_kernel_driver≥ r1p0, ≤ r40p0
- midgard_gpu_kernel_driver≥ r13p0, ≤ r32p0
- valhall_gpu_kernel_driver≥ r19p0, ≤ r40p0
1 vendor · 3 products