Vulnerability in mips_cdmm_phys_base in Kernel
Summary
GSD-2022-1001527: mips: cdmm: Fix refcount leak in mips_cdmm_phys_base. Affects Kernel versions >= 2121aa3e2312ccc1d6299154dc4f07a6ab8beee2, < 4680c2ac9aabda82acd23ebbd1f900fb6a889cd3. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system, responsible for managing system resources and providing an interface between hardware and software. The mips_cdmm_phys_base function in the Kernel is used to handle physical memory mapping in MIPS-based systems. This vulnerability, identified as GSD-2022-1001527, involves a refcount leak in the mips_cdmm_phys_base function.
Vulnerability Detail
The refcount leak in mips_cdmm_phys_base can lead to potential security vulnerabilities. Although the impact and attack plausibility have not been proven, it is crucial to address this issue to ensure the integrity and security of the system. The vulnerability was introduced in version v5.9 of the Linux Kernel by commit 2121aa3e2312ccc1d6299154dc4f07a6ab8beee2 and has been fixed in version v5.16.19 by commit 4680c2ac9aabda82acd23ebbd1f900fb6a889cd3.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, the mips_cdmm_phys_base function in the Kernel is vulnerable to a refcount leak. Although the impact and attack plausibility have not been proven, it is recommended to update to the fixed version of the Linux Kernel to ensure system security. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown, as the actual attack plausibility has not been proven. However, it is important to address the vulnerability to prevent potential security risks.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
Yes, a patch for this vulnerability is available in version v5.16.19 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
No specific workaround has been provided for this vulnerability. It is recommended to update to the fixed version of the Linux Kernel.
You can find more information about this vulnerability in the GSD-2022-1001527 JSON file available in the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001527.json
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