CVE-2016-9083: drivers/vfio/pci/vfio_pci.c in the Linux kernel through 4.8.11 allows local users to bypass integer overflo...

Security readout for executives and security teams

A local Linux user with access to a VFIO PCI device file could trigger a kernel driver flaw that corrupts memory. The public record describes denial of service and unspecified other impact, not remote compromise. Business urgency is mainly for hosts using VFIO/PCI passthrough or virtualization workflows where non-root users can reach VFIO device nodes. Exposure is likely limited to Linux systems at or before 4.8.11 where local users can access VFIO PCI device files. This is most relevant to virtualization, PCI passthrough, or device-assignment hosts. General internet-facing exposure is not supported by the provided sources. Prioritize remediation on virtualization hosts and systems that expose VFIO devices to local users. This is not evidenced as internet-exploited, but kernel memory corruption can affect host stability and isolation. Treat as scheduled security maintenance unless VFIO access is broad or untrusted. Mitigation focus: Update affected Linux kernels using vendor-supported packages or upstream-fixed versions.; Apply relevant Red Hat advisories where applicable, including RHSA-2017:0386 or RHSA-2017:0387.; Restrict VFIO device file access to only trusted administrative or virtualization service accounts..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.