CAPIO: Safe Kernel-Bypass of Commodity Devices Using Capabilities

Securing low-latency I/O in commodity systems forces a fundamental trade-off: rely on the kernel's high overhead mediated interface, or bypass it entirely, exposing sensitive hardware resources to userspace and creating new vulnerabilities. This dilemma stems from a hardware granularity mismatch:...

The vulnerability of the Mac OS X operating system, which allows a hacker to trigger a service failure

The vulnerability of the EFI component in the Mac OS X operating system is related to errors in specifying the range of protected registers. Exploiting this vulnerability can allow a malicious actor to trigger a service failure through a specially crafted application...