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CVE-2025-37899 is a use-after-free vulnerability in the Linux kernel's ksmbd in-kernel SMB server. A race exists during SMB2 LOGOFF processing: a worker handling logoff can free the session's user object while another ksmbd worker, including one processing session setup to bind to that session, continues to use that object. The resulting dereference of freed kernel memory can cause memory corruption.
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No valid public exploits. Mallory filtered out 3 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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175 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel networking use-after-free mentioned only as an example of an AI-discovered vulnerability; no further technical or exploitation details are provided.
A use-after-free race condition in the Linux kernel ksmbd SMB server logoff handler that can lead to kernel memory corruption and potentially code execution; described as a remote 0-day at time of discovery.
A specific use-after-free vulnerability in the Linux kernel ksmbd SMB server component involving a race between worker-thread request handling and SMB2 LOGOFF freeing session user data.
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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.
Community discussion across Reddit, Mastodon, and other social sources.