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CVE-2024-31076 is a resource-leak flaw in Linux kernel genirq CPU-hotplug and x86 interrupt-vector handling. When an interrupt affinity change is deferred, an interrupt first runs on its original CPU, and the original CPU is subsequently offlined before the interrupt next runs on its newly assigned CPU, the prior interrupt vector may not be reclaimed from the old CPU's vector matrix. The affected cleanup paths can instead clear move-tracking state without freeing the previous vector. The fix forces completion of pending interrupt moves before CPU-offline affinity fixup evaluation and adds defensive reclamation in vector cleanup scheduling.
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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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel x86 interrupt-vector leak during CPU offline operations.
A Linux kernel genirq/CPU-hotplug and x86 vector-management flaw involving vector leakage during CPU offlining.
Linux kernel genirq/cpuhotplug and x86 vector-handling flaw that can leak vectors during CPU offlining.
Linux kernel x86 interrupt-vector resource leak during CPU offline operations.
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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.