CVE-2023-53482
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-01

Last updated on: 2025-10-02

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: iommu: Fix error unwind in iommu_group_alloc() If either iommu_group_grate_file() fails then the iommu_group is leaked. Destroy it on these error paths. Found by kselftest/iommu/iommufd_fail_nth
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-10-01
Last Modified
2025-10-02
Generated
2026-06-16
AI Q&A
2025-10-01
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53482
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is in the Linux kernel's iommu component. Specifically, there is an error in the error handling code of the function iommu_group_alloc(). If the function iommu_group_grate_file() fails, the iommu_group resource is leaked because it is not properly destroyed on these error paths. This means that memory or resources allocated for iommu_group are not freed when an error occurs, potentially leading to resource leaks.

Impact Analysis

The impact of this vulnerability is that it can cause resource leaks in the Linux kernel's iommu subsystem. Resource leaks can degrade system performance over time, potentially leading to system instability or crashes if resources are exhausted. However, there is no indication of direct exploitation such as privilege escalation or data corruption from this vulnerability.

Mitigation Strategies

To mitigate this vulnerability, update the Linux kernel to a version where the iommu_group_alloc() error unwind issue has been fixed. This ensures that iommu_group leaks on error paths are properly handled.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2023-53482. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart