Memory Leak Vulnerability in fsl_ifc Package
Summary
UVI-2021-1001263: memory: fsl_ifc: fix leak of private memory on probe failure. Affects Kernel versions >= a20cbdeffce247a2b6fb83cd8d22433994068565, < b5789e23773f4a852fbfe244b63f675e265d3a7f. 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 involves a memory leak issue that occurs when the probe process fails. This can lead to the consumption of excessive memory resources and potentially impact the overall system performance and stability.
Vulnerability Detail
The memory leak vulnerability in the fsl_ifc package arises from a failure to release private memory when the probe process fails. This can occur due to various reasons such as invalid configurations or hardware issues. When the probe fails, the allocated private memory is not properly freed, resulting in a memory leak. Attackers may exploit this vulnerability to exhaust available memory resources, leading to denial of service (DoS) conditions or other system instability. The vulnerability was introduced in version v3.3 of the Linux Kernel and has been fixed in version v5.10.52.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can disable the fsl_ifc module if it is not required for their specific use case. This can be achieved by blacklisting the module or removing it from the kernel configuration. However, this workaround should only be considered if the fsl_ifc functionality is not essential, as it may impact the functionality of certain devices or applications that rely on it.
Conclusion
The memory leak vulnerability in the fsl_ifc package can have significant implications for system performance and stability. It is crucial to update the Linux Kernel to version v5.10.52 or later to address this vulnerability. Additionally, users can consider disabling the fsl_ifc module if it is not necessary for their specific use case. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The memory leak vulnerability in the fsl_ifc package can result in the consumption of excessive memory resources, leading to system performance degradation and potential instability. It may also create opportunities for denial of service (DoS) attacks.
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 analyze the dependencies and alert you if any vulnerabilities, including this memory leak issue, are found.
Yes, the memory leak vulnerability in the fsl_ifc package has been fixed in Linux Kernel version v5.10.52. It is recommended to update to this version or a later one to mitigate the vulnerability.
Yes, as a temporary workaround, you can disable the fsl_ifc module if it is not essential for your system. However, this should only be done if the functionality provided by the module is not required, as it may impact the operation of certain devices or applications.
For more details about this vulnerability, you can refer to the vulnerability report in the GSD Database maintained by the Cloud Security Alliance. The report can be found at: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/UVI-2021-1001263.json
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