Tag
privilege-transition
- Mar 31, 2026 How a Hardware Interrupt Reaches a Handler on x86-64 The gate descriptor lookup, the privilege transition, and the stack switch that carry a device signal into kernel code, and what each step costs. operating systems
- Feb 8, 2024 Session Fixation and Why Identifiers Must Rotate How an attacker who chooses a session identifier inherits the victim's authenticated session, and which state transitions require a fresh identifier to break the link. security
- Sep 14, 2023 How a System Call Transfers Control to the Kernel What the x86-64 syscall instruction actually changes, why the kernel cannot switch stacks for free, and how the two return paths back to user mode differ. operating systems