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CVE-2022-50000 is a use-after-free vulnerability in the Linux kernel netfilter flowtable hardware-offload cleanup path. During flowtable destruction, pending hardware add or statistics work can cause the initial garbage-collector pass to skip scheduling hardware deletion work for an entry. After the pending work is flushed, a subsequent garbage-collector pass can schedule the deferred deletion work after the flowtable has been freed. The asynchronous flow-offload worker can then dereference the freed flowtable. The issue was introduced in Linux kernel 5.5 and is fixed upstream in 5.15.64, 5.19.6, and 6.0.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel netfilter flowtable flaw that can leave flows stuck during cleanup because of pending work.
Unknown; the advisory references this Linux kernel CVE but provides no vulnerability description.
Unknown; this CVE is listed in the advisory without vulnerability details.
A Linux kernel netfilter flowtable cleanup use-after-free vulnerability caused by improperly synchronized pending hardware offload work. During flow-table teardown, delayed hardware delete work can execute after the flow table has been freed.
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.