Vulnerability in powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
Summary
GSD-2022-1003044: powerpc/iommu: Add missing of_node_put in iommu_init_early_dart. Affects Kernel versions < 8657e8ea23325949091da72453ba84fb73cc2bd9. No fix is published. How to fix ↓
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Background
The powerpc/iommu package is a component of the Linux Kernel that provides support for Input/Output Memory Management Units (IOMMUs) on PowerPC architecture. IOMMUs are responsible for managing memory access between devices and the CPU, ensuring security and isolation. This vulnerability in the package involves a missing of_node_put function call in the iommu_init_early_dart function. This omission can lead to a resource leak and potential memory corruption.
Vulnerability Detail
The vulnerability arises from the absence of an of_node_put function call in the iommu_init_early_dart function of the powerpc/iommu package. This can result in a resource leak, where the reference count of the device tree node is not properly decremented, leading to memory corruption and potential security issues. An attacker may be able to exploit this vulnerability to gain unauthorized access, escalate privileges, or cause a denial-of-service condition.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the powerpc/iommu package in the Linux Kernel is vulnerable to a missing of_node_put function call in the iommu_init_early_dart function. This can lead to resource leaks, memory corruption, and potential security risks. It is crucial to update to Linux Kernel version v5.17.14 or later, which includes the fix for this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can result in resource leaks and potential memory corruption. It may be exploited by attackers to gain unauthorized access, escalate privileges, or cause a denial-of-service condition.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will provide real-time alerts for open-source vulnerabilities.
Yes, the vulnerability has been fixed in Linux Kernel version v5.17.14 by commit 8657e8ea23325949091da72453ba84fb73cc2bd9. It is recommended to update to this version or any subsequent version that includes the fix.
There are no known exploits for this vulnerability at the moment. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
You can find more information about this vulnerability in the GSD Database entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003044.json
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