CVE-2021-29256

Published May 24, 2021 CVSS 3.1 · 8.8 High EPSS 3.0% KEV · Listed
Description
. The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-15895 . The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.
History
Type Values Removed Values Added
First Time appeared Arm bifrost Gpu Kernel Driver
Arm midgard Gpu Kernel Driver
Arm valhall Gpu Kernel Driver
CPEs cpe:2.3:a:arm:bifrost:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:midgard:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:valhall:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*
Vendors & Products Arm bifrost
Arm midgard
Arm valhall
Arm bifrost Gpu Kernel Driver
Arm midgard Gpu Kernel Driver
Arm valhall Gpu Kernel Driver
Type Values Removed Values Added
Metrics kev

{'dateAdded': '2023-07-07'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 21, 2025, 11:25 PM
Reserved
Mar 26, 2021, 12:00 AM
Status
Analyzed
Published
May 24, 2021, 6:15 PM
Modified
Jun 17, 2026, 3:47 AM