CVE-2021-22566 Incorrect mapping of Executable bits in Fuchsia Kernel

An incorrect setting of UXN bits within mmuflagstos1pteattr lead to privileged executable pages being mapped as executable from an unprivileged context. This can be leveraged by an attacker to bypass executability restrictions of kernel-mode pages from user-mode. An incorrect setting of PXN bits...

CVE-2021-22566 Incorrect mapping of Executable bits in Fuchsia Kernel

An incorrect setting of UXN bits within mmuflagstos1pteattr lead to privileged executable pages being mapped as executable from an unprivileged context. This can be leveraged by an attacker to bypass executability restrictions of kernel-mode pages from user-mode. An incorrect setting of PXN bits...