Vulnerability in powerpc/iommu package: Missing of_node_put in iommu_init_early_dart
Summary
GSD-2022-1003569: powerpc/iommu: Add missing of_node_put in iommu_init_early_dart. Affects Kernel versions < dfc308d6f29aa28463deb9a12278a85a382385ca. No fix is published. How to fix ↓
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Background
The powerpc/iommu package is a component of the Linux Kernel, which is responsible for handling input-output memory management unit (IOMMU) operations on powerpc architecture. The IOMMU provides memory address translation and access control for devices connected to the system. It ensures secure and efficient data transfers between devices and memory. However, a vulnerability has been identified in the package, specifically in the iommu_init_early_dart function.
Vulnerability Detail
The vulnerability arises from a missing of_node_put call in the iommu_init_early_dart function of the powerpc/iommu package. This omission can lead to a reference count leak, potentially resulting in a use-after-free vulnerability. An attacker may exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
In conclusion, the powerpc/iommu package in the Linux Kernel is vulnerable to a missing of_node_put call in the iommu_init_early_dart function. This vulnerability can potentially lead to a use-after-free issue, allowing arbitrary code execution or causing a denial-of-service condition. To mitigate this vulnerability, it is crucial to update the kernel to version v5.10.121 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The powerpc/iommu package is a component of the Linux Kernel that handles input-output memory management unit (IOMMU) operations on powerpc architecture. It provides memory address translation and access control for devices connected to the system.
The impact of this vulnerability is not yet proven. However, if exploited, it could lead to arbitrary code execution or a denial-of-service condition.
To fix this vulnerability, update the Linux Kernel to version v5.10.121 or later, which includes the necessary fix for the missing of_node_put call.
No workaround has been provided for this vulnerability.
For more details about this vulnerability, refer to the source link provided in the database_specific section of the vulnerability details.
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