CVE-2022-1116

Una vulnerabilidad de desbordamiento de enteros o Wraparound en io_uring del Kernel de Linux permite a un atacante local causar una corrupción de memoria y escalar privilegios a root. Este problema afecta a: Las versiones del Kernel de Linux anteriores a 5.4.189; versión 5.4.24 y posteriores

It was discovered that a race condition existed in the network scheduling subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. Various other issues were also addressed.