Memory Leak in fsl_ifc Package
Summary
UVI-2021-1001374: memory: fsl_ifc: fix leak of private memory on probe failure. Affects Kernel versions >= a20cbdeffce247a2b6fb83cd8d22433994068565, < ee1aa737ba0b75ab8af3444c4ae5bdba36aed6e6. No fix is published. How to fix ↓
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Background
The fsl_ifc package is a component of the Linux Kernel, which is responsible for managing memory in Freescale Integrated Flash Controller (IFC) devices. It provides an interface for accessing and controlling the IFC memory. The vulnerability in this package leads to a memory leak when the probe process fails.
Vulnerability Detail
The vulnerability in the fsl_ifc package results in a memory leak when the probe process fails. This can occur due to various reasons, such as incorrect initialization or configuration. When the probe fails, the package does not properly release the private memory it allocated, leading to a memory leak. This can result in resource exhaustion and potential denial-of-service attacks. The vulnerability was introduced in version v3.3 of the Linux Kernel and is fixed in version v4.19.198.
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. The recommended approach is to update the Linux Kernel to the fixed version.
Conclusion
The memory leak vulnerability in the fsl_ifc package can lead to resource exhaustion and potential denial-of-service attacks. It is crucial to update the Linux Kernel to version v4.19.198 or later to fix this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The vulnerability can result in a memory leak, leading to resource exhaustion and potential denial-of-service attacks.
You can use Vulert's playground (https://vulert.com/scanner) to check if your application 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.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to update the Linux Kernel to the fixed version to mitigate the risk.
The vulnerability itself does not provide remote exploitation capabilities. However, if an attacker can trigger the probe failure remotely, they may be able to exploit the resulting memory leak for denial-of-service attacks.
At the time of this report, this is the only known vulnerability in the fsl_ifc package. It is recommended to keep the package updated to the latest version to mitigate any potential security risks.
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