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CVE-2026-46189 is a double-free vulnerability in the Linux kernel RDMA/vmw_pvrdma driver. On an error path in pvrdma_alloc_ucontext(), the code invoked pvrdma_uar_free() before calling pvrdma_dealloc_ucontext(). Because pvrdma_dealloc_ucontext() already performs the UAR cleanup, the redundant earlier invocation could free the same resource twice.
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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.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific vulnerability tracked as CVE-2026-46189 referenced in a Unity Linux local security check advisory.
A Linux kernel RDMA/vmw_pvrdma vulnerability involving a double free on the pvrdma_alloc_ucontext() error path.
A Linux kernel RDMA/vmw_pvrdma double-free vulnerability on the pvrdma_alloc_ucontext() error path.
A Linux kernel RDMA/vmw_pvrdma vulnerability that can lead to a double free on the pvrdma_alloc_ucontext() error path.
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.