CVE-2015-8955

arch/arm64/kernel/perf_event.c en el kernel de Linux en versiones anteriores a 4.1 en plataformas arm64 permite a usuarios locales obtener privilegios o provocar una denegación de servicio (puntero de referencia no valido) a través de vectores relacionados con eventos que son manejados incorrectamente durante un lapso de múltiples HW PMUs.

It was discovered that the Linux kernel did not properly initialize a Wake- on-Lan data structure. A local attacker could use this to expose sensitive information. It was discovered that the Linux kernel did not properly restrict access to /proc/iomem. A local attacker could use this to expose sensitive information. It was discovered that a use-after-free vulnerability existed in the performance events and counters subsystem of the Linux kernel for ARM64. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.