Vulnerability in Kernel package: iommu/omap
Summary
GSD-2022-1001682: iommu/omap: Fix regression in probe for NULL pointer dereference. Affects Kernel versions >= 6785eb9105e3363aa51408c700a55e8b5f88fcf6, < 47e239117bd97c8556f9187af7a9a7938db4e021. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's resources and facilitating communication between hardware and software. The iommu/omap module within the Kernel package specifically handles input/output memory management unit (IOMMU) operations for OMAP-based systems. The IOMMU provides memory address translation and access control for devices connected to the system. However, a vulnerability has been discovered in the iommu/omap module that can lead to a NULL pointer dereference.
Vulnerability Detail
The vulnerability in the iommu/omap module of the Kernel package arises from a regression introduced in version v5.8. It can be triggered during the probe process, resulting in a NULL pointer dereference. An attacker could potentially exploit this vulnerability to cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability has been fixed in version v5.15.34 of the Linux Kernel by commit 47e239117bd97c8556f9187af7a9a7938db4e021.
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
The vulnerability in the iommu/omap module of the Kernel package can lead to a NULL pointer dereference, potentially resulting in a denial-of-service (DoS) condition or arbitrary code execution with kernel privileges. It is crucial to update the Linux Kernel package to version v5.15.34 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from a denial-of-service (DoS) condition to arbitrary code execution with kernel privileges.
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 to the playground and it will provide real-time alerts for open-source vulnerabilities.
At the time of this report, no known exploits for this vulnerability have been disclosed.
The recommended mitigation is to update the Linux Kernel package to version v5.15.34 or later.
You can find more information about this vulnerability in the GSD-2022-1001682.json file available in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001682.json
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