Vulnerability in mac80211: remove warning in ieee80211_get_sband()
Summary
GSD-2021-1001130: mac80211: remove warning in ieee80211_get_sband(). Affects Kernel versions < 93e9f3fbafe3ebe8d060c11a425a08fad1885f23. No fix is published. How to fix ↓
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Background
The mac80211 package is a subsystem in the Linux Kernel that provides the implementation of the IEEE 802.11 wireless networking stack. It is responsible for managing wireless network interfaces and handling communication between devices. The ieee80211_get_sband() function is a part of mac80211 that retrieves the regulatory band information for a given wireless device. This function is vulnerable to a warning that needs to be removed.
Vulnerability Detail
The vulnerability in mac80211's ieee80211_get_sband() function is related to a warning that is present in the code. The warning can potentially lead to confusion and may impact the overall functionality of the wireless networking stack. While the actual impact and attack plausibility have not been proven, it is important to address this warning to ensure the stability and security of the system. The vulnerability has been fixed in Linux Kernel version v5.12.14 by commit 93e9f3fbafe3ebe8d060c11a425a08fad1885f23.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The vulnerability in mac80211's ieee80211_get_sband() function, which involved a warning, has been addressed in Linux Kernel version v5.12.14. It is crucial to update the kernel to this version or a later one to ensure the stability and security of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
mac80211 is a subsystem in the Linux Kernel that implements the IEEE 802.11 wireless networking stack. It is responsible for managing wireless network interfaces and facilitating communication between devices.
ieee80211_get_sband() is a function in mac80211 that retrieves the regulatory band information for a given wireless device. It is used to determine the supported frequency bands and regulatory restrictions for wireless communication.
The warning in ieee80211_get_sband() can potentially lead to confusion and may impact the overall functionality of the wireless networking stack. However, the actual impact and attack plausibility have not been proven.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.12.14 or later. This can be done by obtaining the updated kernel source code from the official Linux Kernel repository and compiling it according to the system's specifications.
No specific workaround has been mentioned for this vulnerability. It is advised to update the Linux Kernel to the fixed version as soon as possible.
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