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Linux Kernel CVE-2022-50528

MEDIUM
Memory Leak (CWE-401)
2025-10-07 416baaa9-dc9f-4396-8d5f-8c081fb06d67
5.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SUSE
MEDIUM
qualitative
Red Hat
5.5 LOW
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 17, 2026 - 20:45 vuln.today
Patch released
Mar 17, 2026 - 20:45 nvd
Patch available
CVE Published
Oct 07, 2025 - 16:15 nvd
MEDIUM 5.5

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix memory leakage

This patch fixes potential memory leakage and seg fault in _gpuvm_import_dmabuf() function

AnalysisAI

A memory leakage and potential segmentation fault vulnerability exists in the Linux kernel's AMD KFD (Kernel Fusion Driver) GPU memory management subsystem, specifically in the _gpuvm_import_dmabuf() function. The vulnerability affects Linux kernel versions across multiple branches and can be exploited by local users with low privilege levels to cause denial of service through memory corruption. Patches are available from the Linux kernel stable branches, and while the EPSS score is very low (0.01%, percentile 3%), the vulnerability has moderate CVSS severity (5.5) due to its ability to cause system availability impact.

Technical ContextAI

This vulnerability resides in the AMD KFD GPU virtualization memory management code (drm/amdkfd subsystem) within the Linux kernel. The root cause is classified as CWE-401 (Missing Release of Memory after Effective Lifetime), indicating improper cleanup of dynamically allocated memory within the _gpuvm_import_dmabuf() function. When processing DMA buffer imports for GPU virtual memory, the function fails to properly release allocated memory under certain error conditions, leading to heap corruption and potential segmentation faults. AMD KFD is a core component of AMD GPU support in Linux, affecting systems with AMD GPUs that rely on kernel-level memory management for GPU-CPU coherence. The affected product is the Linux kernel itself (identified via multiple CPE entries for linux:linux_kernel), which is the foundational operating system component used across virtually all Linux distributions.

RemediationAI

The primary remediation is to upgrade the Linux kernel to a patched version containing one of the four stable commits addressing the memory leak in _gpuvm_import_dmabuf(). Users should check their distribution's kernel updates and apply the latest available kernel version from their vendor (e.g., Ubuntu kernel security updates, Red Hat RHSA advisories, Debian security updates). The patches are available upstream in the Linux kernel stable branches at https://git.kernel.org/stable/. For systems unable to immediately patch, the vulnerability only affects systems with AMD GPUs actively using kernel mode GPU memory management; systems without AMD GPUs or running integrated graphics are unaffected. Administrators should prioritize patching systems that run workloads requiring GPU acceleration, such as machine learning platforms, compute servers, or workstations with dedicated AMD GPUs.

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
Container suse/sle-micro-rancher/5.3:latest Container suse/sle-micro-rancher/5.4:5.4.4.5.89 Image SLES15-SP4-BYOS Image SLES15-SP4-BYOS-Azure Image SLES15-SP4-BYOS-EC2 Image SLES15-SP4-BYOS-GCE Image SLES15-SP4-HPC-BYOS Image SLES15-SP4-HPC-BYOS-Azure Image SLES15-SP4-HPC-BYOS-EC2 Image SLES15-SP4-HPC-BYOS-GCE Image SLES15-SP4-HPC-EC2 Image SLES15-SP4-HPC-GCE Image SLES15-SP4-Hardened-BYOS Image SLES15-SP4-Hardened-BYOS-Azure Image SLES15-SP4-Hardened-BYOS-EC2 Image SLES15-SP4-Hardened-BYOS-GCE Image SLES15-SP4-Manager-Server-4-3-BYOS Image SLES15-SP4-Manager-Server-4-3-BYOS-Azure Image SLES15-SP4-Manager-Server-4-3-BYOS-EC2 Image SLES15-SP4-Manager-Server-4-3-BYOS-GCE Image SLES15-SP4-Micro-5-3-BYOS Image SLES15-SP4-Micro-5-3-BYOS-Azure Image SLES15-SP4-Micro-5-4-BYOS Image SLES15-SP4-Micro-5-4-BYOS-Azure Image SLES15-SP4-SAP Image SLES15-SP4-SAP-Azure Image SLES15-SP4-SAP-EC2 Image SLES15-SP4-SAP-GCE Image SLES15-SP4-SAPCAL Image SLES15-SP4-SAPCAL-Azure Image SLES15-SP4-SAPCAL-EC2 Image SLES15-SP4-SAPCAL-GCE Affected
Container suse/sle-micro/base-5.5:2.0.4-5.8.224 Image SLES15-SP5-BYOS-Azure Image SLES15-SP5-BYOS-EC2 Image SLES15-SP5-BYOS-GCE Image SLES15-SP5-EC2 Image SLES15-SP5-GCE Image SLES15-SP5-HPC-BYOS-Azure Image SLES15-SP5-HPC-BYOS-EC2 Image SLES15-SP5-HPC-BYOS-GCE Image SLES15-SP5-Hardened-BYOS-Azure Image SLES15-SP5-Hardened-BYOS-EC2 Image SLES15-SP5-Hardened-BYOS-GCE Image SLES15-SP5-Micro-5-5 Image SLES15-SP5-Micro-5-5-Azure Image SLES15-SP5-Micro-5-5-BYOS Image SLES15-SP5-Micro-5-5-BYOS-Azure Image SLES15-SP5-Micro-5-5-EC2 Image SLES15-SP5-SAPCAL-Azure Image SLES15-SP5-SAPCAL-EC2 Image SLES15-SP5-SAPCAL-GCE Affected
Container suse/sle-micro/kvm-5.5:2.0.4-3.5.429 Affected
Container suse/sle-micro/rt-5.5:2.0.4-4.5.535 Affected
Image SLES15-SP4-SAP-Azure-LI-BYOS Image SLES15-SP4-SAP-Azure-LI-BYOS-Production Image SLES15-SP4-SAP-Azure-VLI-BYOS Image SLES15-SP4-SAP-Azure-VLI-BYOS-Production Image SLES15-SP4-SAP-BYOS Image SLES15-SP4-SAP-BYOS-Azure Image SLES15-SP4-SAP-BYOS-EC2 Image SLES15-SP4-SAP-BYOS-GCE Image SLES15-SP4-SAP-Hardened Image SLES15-SP4-SAP-Hardened-Azure Image SLES15-SP4-SAP-Hardened-BYOS Image SLES15-SP4-SAP-Hardened-BYOS-Azure Image SLES15-SP4-SAP-Hardened-BYOS-EC2 Image SLES15-SP4-SAP-Hardened-BYOS-GCE Image SLES15-SP4-SAP-Hardened-GCE Affected

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CVE-2022-50528 vulnerability details – vuln.today

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