CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the mac80211 subsystem, specifically in the handling of multi-link elements during the defragmentation process. This flaw can lead to incorrect data retrieval and potential heap overflows, posing a risk of denial-of-service or arbitrary code execution. Organizations using affected Linux distributions, particularly those relying on wireless networking functionalities, should prioritize patching this vulnerability to mitigate associated risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix MLE defragmentation If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements. This is incorrect for two reasons: - if the original defragmentation was needed, it will not find the correct data - if the original frame is at a higher address, the parsing will potentially overrun the heap data (though given the layout of the buffers, only into the new defragmentation buffer, and then it has to stop and fail once that's filled with copied data. Fix it by tracking the container along with the pointer and in doing so also unify the two almost identical defragmentation routines.