CVE-2009-3613: The swiotlb functionality in the r8169 driver in drivers/net/r8169.c in the Linux kernel before 2.6.27.22 a...

Security readout for executives and security teams

CVE-2009-3613 is an old Linux kernel network-driver denial-of-service issue. A remote attacker sending high volumes of jumbo-frame traffic could exhaust IOMMU-related resources and crash affected systems. It is about availability, not data theft. The bundle does not show active exploitation. Exposure is likely limited to legacy Linux systems using vulnerable pre-2.6.27.22 kernels or vendor kernels carrying the affected r8169 behavior. Systems with Realtek r8169-driven interfaces, swiotlb/IOMMU use, and jumbo-frame-capable network paths deserve priority review. Moderate priority for modern environments, higher for legacy Linux infrastructure still exposed to untrusted networks. The main business risk is unexpected outage of older systems, not compromise. Address through lifecycle cleanup and vendor kernel updates. Mitigation focus: Update affected kernels using vendor advisories or a fixed kernel lineage.; Prioritize internet-facing or untrusted-network hosts using r8169-driven interfaces.; Use OVAL definitions to identify affected package states where supported..

Prepared

Jun 28, 2026, 18:15 UTC (UTC+00:00)

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