FreeBSD versions 11.0 through 13.0 suffers from a local privilege escalation vulnerability via an aio_aqueue kernel refcount bug. This research post goes into great depth on how the researcher traversed the logic flow and achieved exploitability.
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FreeBSD versions 11.0 through 13.0 suffers from a local privilege escalation vulnerability via an aio_aqueue kernel refcount bug. This research post goes into great depth on how the researcher traversed the logic flow and achieved exploitability.