CVE-2015-8962

Vulnerabilidad de liberación doble en la función sg_common_write en drivers/scsi/sg.c en el kernel de Linux en versiones anteriores a 4.4 permite a usuarios locales obtener privilegios o provocar una denegación de servicio (corrupción de memoria y bloqueo del sistema) desvinculando un dispositivo durante una llamada ioctl SG_IO.

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.