High severity8.8CISA KEVNVD Advisory· Published May 24, 2021· Updated Jun 17, 2026
CVE-2021-29256
CVE-2021-29256
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*Range: >=r16p0,<r30p0
- cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*Range: >=r28p0,<r31p0
- cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*Range: >=r19p0,<r30p0
- Arm/Mali GPU kernel driverdescription
- Range: Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0
Patches
Vulnerability mechanics
References
2- developer.arm.com/support/arm-security-updates/mali-gpu-kernel-drivernvdVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
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