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CVE-2025-21828 is a flaw in the Linux kernel mac80211 Wi-Fi subsystem's station cleanup handling. In IBSS-like scenarios, a station may be moved to the AUTHORIZED state before insertion. If insertion subsequently fails, the station is freed without ever having been uploaded to the driver. A later attempt to flush that non-uploaded station can invoke an unexpected driver operation and crash the system. The fix verifies that the station was uploaded to the driver before flushing it.
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Linux kernel mac80211 station-flush handling flaw.
Linux kernel mac80211 station-handling flaw.
A Linux kernel mac80211 Wi-Fi subsystem flaw in which a station that failed insertion can be freed before being uploaded to the driver; subsequently attempting to flush that non-uploaded station can cause an unexpected driver operation and potential crash.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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