CVE-2017-16529

La función snd_usb_create_streams en sound/usb/card.c en el kernel de Linux, en versiones anteriores a la 4.13.6, permite que los usuarios locales provoquen una denegación de servicio (lectura fuera de límites y cierre inesperado del sistema) o, posiblemente, causen otros impactos no especificados mediante llamadas del sistema manipuladas.

It was discovered that a race condition existed in the ALSA subsystem of the Linux kernel when creating and deleting a port via ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Eric Biggers discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is uninstantiated. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.