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CVE-2023-52530 is a use-after-free vulnerability in the Linux kernel mac80211 IEEE 802.11 Wi-Fi stack. During GTK rekey handling, ieee80211_gtk_rekey_add() can call ieee80211_key_link(), which may return success-equivalent status after rejecting an identical key reinstallation as part of KRACK protection. The caller could nevertheless return a pointer into the rejected key, leaving a stale pointer that can be dereferenced after the key is freed. The fix returns an error for this condition within ieee80211_gtk_rekey_add() and converts it to success only at the cfg80211 boundary, preventing unsafe use by internal callers.
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Potential use-after-free of Wi-Fi keys in the Linux mac80211 subsystem.
A potential key use-after-free vulnerability in the Linux kernel mac80211 Wi-Fi subsystem.
Linux kernel mac80211 potential key use-after-free vulnerability.
A resolved potential use-after-free vulnerability involving key handling in the Linux kernel's mac80211 Wi-Fi subsystem. The referenced automated assessment characterized its impact as moderate.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.