CVE-2022-1043

Se ha encontrado un fallo en la implementación io_uring del kernel de Linux. Este fallo permite a un atacante con una cuenta local corromper la memoria del sistema, bloquear el sistema o escalar privilegios

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of credentials in io_uring. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.