regs_within_kernel_stack(9)

okay bestie, welcome to the regs_within_kernel_stack(9) page from the Kernel API Manual — we’re doing a little vibe check on stack addresses today 💅✨

🌸 NAME 🌸

regs_within_kernel_stack — check the address in the stack 🫶

✨ SYNOPSIS ✨

int regs_within_kernel_stack (struct pt_regs *regs , unsigned long addr
       );

🎀 ARGUMENTS 🎀

• regs — a pt_regs which contains kernel stack pointer. yes bestie, it’s holding the stack pointer for you 💖
• addr — address which is checked. that’s the one we’re asking about 👀

🦋 DESCRIPTION 🦋

so regs_within_kernel_stack checks addr is within the kernel stack page(s). if addr is within the kernel stack, it returns true. if not, returns false. that’s it — simple little true/false moment, no cap 🔥

💜 SEE ALSO 💜

Kernel file ./arch/x86/include/asm/ptrace.h says hi, and so do these function besties:

• regs_get_register(9)
• regs_get_kernel_stack_nth_addr(9)
• regs_get_kernel_stack_nth(9)
• regs_get_kernel_argument(9)

mwah 💋 this iconic little page comes from source/version ./arch/x86/include/asm and is dated October 2026 — go check that stack address, bestie, and stay glowing 👑🌈