access_remote_vm(9)

💅 access_remote_vm(9) — from the Kernel API Manual, bestie ✨

okay so real talk, this one is a kernel API page about poking around in somebody else's memory. Like, not your own process — another process' address space. main character energy fr 💅 let's get into it.

🌸 NAME 🌸

access_remote_vm — access another process' address space 🫶

✨ SYNOPSIS ✨

int access_remote_vm (struct mm_struct *mm , unsigned long addr , void
*buf , int len , unsigned int gup_flags );

🎀 ARGUMENTS 🎀

• mm — the mm_struct of the target address space. literally whose memory you're sliding into 🦋
• addr — the start address to access. where the vibes begin ✨
• buf — source or destination buffer. depends which way the data's flowing ngl
• len — number of bytes to transfer. the exact amount, no cap 📏
• gup_flags — flags modifying lookup behaviour. the little knobs that change how the lookup goes down 🔧

💖 DESCRIPTION 💖

So the one thing you CANNOT skip here: the caller must hold a reference on mm. like, non-negotiable, bestie. hold that reference or don't come to the function at all 🙈

🌈 SEE ALSO 🌈

Kernel file ./mm/nommu.c — and while you're in the neighborhood, go say hi to these icons 👑:

• vmalloc_node(9)
• vzalloc_node(9)
• vmalloc_32(9)
• vmalloc_32_user(9)
• copy_remote_vm_str(9)
• nommu_shrink_inode_mappings(9)

💀 reminder reminder reminder: hold that reference on mm. that's the whole rule. that's the post. periodt.

mwah, that's the page bestie 🍓 this lil gem lives in ./mm, dated October 2026, and answers to the name access_remote_vm(9) — catch you in the kernel, slay 🧚‍♀️💜