CVE-2012-2313: The rio_ioctl function in drivers/net/ethernet/dlink/dl2k.c in the Linux kernel before 3.3.7 does not restr...

Security readout for executives and security teams

CVE-2012-2313 is a Linux kernel driver access-control flaw. On systems with the dl2k Ethernet driver, a local user could issue an ioctl that writes data to the network adapter. The source bundle does not show remote exploitation or active exploitation evidence. Exposure appears limited to Linux systems running vulnerable kernels with the dl2k Ethernet driver present and reachable by local users. The bundle does not provide CPEs, exact distribution version ranges, or confirmed vulnerable hardware inventories. Treat this as a targeted kernel hygiene issue, not an internet-wide emergency. Prioritize shared or multi-user Linux systems and close it through normal kernel patch management unless vendor guidance indicates broader impact. Mitigation focus: Apply vendor kernel updates that include the dl2k ioctl permission fix.; Verify kernels are 3.3.7 or include the referenced backported fix.; Check Red Hat, SUSE, HP, or relevant vendor advisories for package-specific guidance..

Prepared

Jun 24, 2026, 12:34 UTC (UTC+00:00)

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