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CVE-2025-21714 is a use-after-free vulnerability in the Linux kernel RDMA mlx5 driver’s implicit On-Demand Paging (ODP) memory-region teardown path. A race can cause invalidation of the same implicit ODP memory region more than once, queueing its destruction work twice. The first work item frees the memory region; a subsequently executed duplicate work item can then access the freed object, producing reference-count underflow and use-after-free conditions. The fix uses an atomic XArray compare-and-exchange operation to ensure destruction is initiated only once for a given memory region.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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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.