CVE-2019-19057

Dos fugas de memoria en la función mwifiex_pcie_init_evt_ring() en el archivo drivers/net/wireless/marvell/mwifiex/pcie.c en el kernel de Linux versiones hasta la versión 5.3.11, permiten a atacantes causar una denegación de servicio (consumo de memoria) al desencadenar fallos de la función mwifiex_map_pci_memory(), también se conoce como CID-d10dcb615c8e.

Two memory leak flaws were found in the Linux kernel's mwifiex_pcie_init_evt_ring() function. A local attacker, able to reload the kernel module or hotplug Marvell WiFi hardware using this driver, can cause a denial of service (memory consumption) by triggering mwifiex_map_pci_memory() failures.

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. It was discovered that a race condition existed in the Virtual Video Test Driver in the Linux kernel. An attacker with write access to /dev/video0 on a system with the vivid module loaded could possibly use this to gain administrative privileges. Various other issues were also addressed.