CVE-2017-18174

En el kernel de Linux, en versiones anteriores a la 4.7, la función amd_gpio_remove en drivers/pinctrl/pinctrl-amd.c llama a la función pinctrl_unregister, lo que conduce a una doble liberación (double free).

It was discovered that a double free existed in the AMD GPIO driver in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. Various other issues were also addressed.