NFC: digital: Fix Possible Memory Leak in digital_tg_listen_mdaa()
Summary
GSD-2021-1002086: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa(). Affects Kernel versions >= 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8, < 564249219e5b5673a8416b5181875d828c3f1e8c. 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 wirelessly over short distances. The digital component of NFC handles digital communication protocols. 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 can result in a memory leak. This means that memory resources allocated during the execution of the function may not be properly released, leading to a gradual depletion of available memory. If this vulnerability is exploited, it could potentially cause system instability or denial of service due to memory exhaustion.
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 apply the fix by updating the Linux Kernel to the latest version.
Conclusion
The vulnerability in digital_tg_listen_mdaa() function of the NFC digital component in the Linux Kernel can lead to a memory leak. To mitigate this vulnerability, it is recommended to update the Kernel to version v5.14.14 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
NFC (Near Field Communication) is a wireless communication technology that allows devices to exchange data over short distances.
digital_tg_listen_mdaa() is a function in the NFC digital component of the Linux Kernel. It is responsible for listening to target devices in NFC digital mode.
A memory leak occurs when memory resources are allocated but not properly released, leading to a gradual depletion of available memory.
If this vulnerability is exploited, it could result in system instability or denial of service due to memory exhaustion.
To fix this vulnerability, update the Linux Kernel to version v5.14.14 or later, which includes the necessary fix for the memory leak issue.
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