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CVE-2021-47378 is a use-after-free vulnerability in the Linux kernel NVMe over RDMA transport. During RDMA connection-establishment error handling, the queue pair could be destroyed from the connection-manager event handler before the RDMA connection-manager identifier was destroyed. A subsequent connection-manager event could then access the already destroyed queue pair. The fix changes teardown ordering so that the connection-manager identifier is destroyed before the queue pair, and defers queue-pair destruction to the queue-allocation error path after connection-manager teardown.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel vulnerability addressed by RHSA-2022:7683; no flaw details are provided in this advisory text.
Linux kernel NVMe-RDMA use-after-free flaw caused by destruction ordering of connection-manager IDs and queue pairs.
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.