Linux Kernel Vulnerability in mac80211 WiFi Module

CVE-2026-64568

What is CVE-2026-64568?

A vulnerability exists in the Linux kernel within the mac80211 WiFi module, specifically related to the handling of unsol_bcast_probe_resp. The issue arises when ieee80211_set_unsol_bcast_probe_resp() improperly manages memory allocation, leading to a double-free scenario upon allocation failure. This flaw can potentially allow attackers to exploit the double-free condition, resulting in memory corruption, and may lead to impacts on system stability and security. Addressing this vulnerability requires proper sequencing in memory management to ensure that objects are only freed after successful allocations are confirmed.

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