CVE-2020-10768

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.

Se encontró un fallo en el kernel de Linux versiones anteriores a 5.8-rc1 en la función prctl(), donde puede ser usado para habilitar la especulación de rama indirecta después de haber sido deshabilitada. Esta llamada reporta incorrectamente que está "force disabled" cuando no lo está y abre el sistema a ataques de Spectre v2. La mayor amenaza de esta vulnerabilidad es la confidencialidad