CVE-2019-16231

El archivo drivers/net/fjes/fjes_main.c en el kernel de Linux versión 5.2.14, no comprueba el valor de retorno en alloc_workqueue, conllevando a una desreferencia del puntero NULL.

A flaw was found in the Linux kernel. A NULL pointer dereference flaw was found in the FUJITSU Extended Socket Network driver. A call to the alloc_workqueue return was not validated and causes a denial of service at the time of failure. The highest threat from this vulnerability is to system availability.

Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. Andrey Konovalov discovered that the video4linux driver for Hauppauge HD PVR USB devices in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.