CVE-2017-11473: Buffer overflow in the mp_override_legacy_irq() function in arch/x86/kernel/acpi/boot.c in the Linux kernel...

Security readout for executives and security teams

This is a Linux kernel local privilege escalation issue. A local user could abuse malformed ACPI table data to trigger a buffer overflow and gain higher privileges. The business risk is highest on older or vendor-derived systems still carrying the affected kernel code. Exposure is most likely on legacy Linux systems, embedded builds, or vendor kernels derived from affected Linux kernel code through 3.2. Ubuntu, Red Hat, and Android Pixel advisories are cited, so vulnerability managers should rely on vendor package status rather than upstream version alone. Treat this as high priority for legacy Linux estates because it can turn local access into elevated control. It is less urgent than a remotely exploitable internet-facing bug, but it should not remain on multi-user, shared, or appliance systems. Mitigation focus: Apply vendor kernel updates from the relevant Ubuntu, Red Hat, or Android advisory.; Retire or isolate unsupported systems still running affected legacy kernel branches.; Verify vendor backports rather than relying only on upstream kernel version strings..

Prepared

Jun 13, 2026, 04:25 UTC (UTC+00:00)

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