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CVE-2021-28663

nvd nist
Published: May 10, 2021Modified: Jun 17, 2026CISA KEV

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

Description

The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0.

Affected (3)

Arm
3 products
Bifrost Gpu Kernel Driver
Midgard Gpu Kernel Driver
Valhall Gpu Kernel Driver
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Bifrost Gpu Kernel Driver
From r0p0 to r29p0
Midgard Gpu Kernel Driver
From r4p0 to r31p0
Valhall Gpu Kernel Driver
From r19p0 to r29p0

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (7)

Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Exploit
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.