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CVE-2026-46152 is a concurrency flaw in the Linux kernel's mac80211 Wi-Fi subsystem, specifically in the fast receive path handled by ieee80211_invoke_fast_rx(). Although the function is intended to be safe for parallel RX processing, its per-invocation rx_result state was incorrectly declared as a static variable. As a result, concurrent callers shared the same storage and could overwrite each other's result state between ieee80211_rx_mesh_data() and the subsequent switch on the result value. This could corrupt packet-processing decisions, causing a packet already queued or consumed by ieee80211_rx_mesh_data() to incorrectly fall through into ieee80211_rx_8023(), or causing a packet that should continue processing to be treated as queued. The vulnerability was fixed by changing rx_result from a static variable to an automatic variable so each invocation maintains independent state.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel Wi-Fi mac80211 vulnerability related to fast-RX rx_result handling.
A Linux kernel mac80211 Wi-Fi vulnerability referenced by Red Hat; the advisory provides only the upstream fix description.
A Linux kernel mac80211 Wi-Fi vulnerability addressed by correcting fast-RX rx_result handling.
A Linux kernel vulnerability in mac80211 fast-RX rx_result handling.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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.