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CVE-2026-46166 is a Linux kernel vulnerability in the mac80211 Wi-Fi subsystem. The flaw is caused by unsafe iteration over a channel context list during radar detect work. While iterating the list, a call to ieee80211_dfs_cac_cancel can free and remove the currently iterated chanctx entry, leaving subsequent access to reference freed memory. This results in a slab use-after-free condition in kernel space. The issue was fixed by using safe list iteration so that list entries can be removed during traversal without dereferencing invalidated objects.
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A Linux kernel mac80211 Wi-Fi vulnerability involving unsafe list iteration in radar detect work.
A Linux kernel vulnerability in mac80211 radar detect work related to unsafe list iteration.
A Linux kernel mac80211 Wi-Fi vulnerability involving unsafe list iteration in radar detection work.
A Linux kernel mac80211 vulnerability where radar detect work could trigger a slab use-after-free due to unsafe list iteration when ieee80211_dfs_cac_cancel frees and removes the iterated chanctx.
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Every observed campaign linking this CVE to a named adversary.
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YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.