CVE-2016-8440: Possible buffer overflow in SMMU system call.

Security readout for executives and security teams

CVE-2016-8440 is an Android Kernel 3.18 issue involving insufficient validation in a Qualcomm-related ADSP SMMU system call. The reported impact is possible hypervisor memory overwrite. Business risk is mainly for organizations still operating older Android devices or embedded Android builds that include the affected kernel path. Exposure appears limited to Android devices or downstream firmware builds using the affected Kernel 3.18 implementation. Current exposure depends on OEM patch adoption, device age, and whether the affected ADSP/SMMU code path exists in the deployed build. Prioritize validation for legacy Android fleets, rugged devices, kiosks, and embedded Android systems. Urgency is higher where devices are unsupported or handle sensitive operations, but the public evidence here does not confirm active exploitation or provide a severity score. Mitigation focus: Review the Android January 2017 security bulletin and OEM firmware guidance.; Apply vendor-provided Android security updates for affected Kernel 3.18 devices.; Identify unsupported devices and plan replacement or isolation..

Prepared

Jun 13, 2026, 12:51 UTC (UTC+00:00)

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