NFC: digital: Fix Possible Memory Leak in digital_tg_listen_mdaa()
Summary
GSD-2021-1001856: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa(). Affects Kernel versions >= 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8, < 3f2960b39f22e26cf8addae93c3f5884d1c183c9. No fix is published. How to fix ↓
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Background
The NFC (Near Field Communication) functionality in the Linux Kernel allows devices to communicate with each other by bringing them into close proximity. The digital component of NFC handles the digital communication aspects. The digital_tg_listen_mdaa() function is responsible for listening to target devices in NFC digital mode. However, a vulnerability has been identified in this function that could lead to a memory leak.
Vulnerability Detail
The vulnerability in digital_tg_listen_mdaa() function could result in a memory leak. A memory leak occurs when a program fails to release memory that it no longer needs, leading to a gradual depletion of available memory resources. In this case, if the function encounters an error condition, it may fail to release allocated memory, causing a memory leak. This could potentially result in reduced system performance and stability over time.
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
In conclusion, the NFC digital component in the Linux Kernel is vulnerable to a memory leak in the digital_tg_listen_mdaa() function. This vulnerability can be mitigated by updating the Linux Kernel to version v5.10.75 or later. It is important to stay updated with the latest security patches to ensure the stability and performance of the system. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
NFC (Near Field Communication) is a technology that allows devices to communicate with each other by bringing them into close proximity. It is commonly used for contactless payments, data transfer, and other applications.
The digital component of NFC handles the digital communication aspects of the technology. It includes functions and protocols for establishing and maintaining communication between NFC-enabled devices.
A memory leak occurs when a program fails to release memory that it no longer needs, leading to a gradual depletion of available memory resources. This can result in reduced system performance and stability over time.
The vulnerability in digital_tg_listen_mdaa() could result in a memory leak, which can lead to reduced system performance and stability over time. It is important to update the Linux Kernel to the fixed version to mitigate this risk.
To fix this vulnerability, update the Linux Kernel to version v5.10.75 or later. The fix for this issue was implemented in commit 3f2960b39f22e26cf8addae93c3f5884d1c183c9.
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