scoped_user_write_access(9)

💅 scoped_user_write_access(9)

okay so this is a page from the Kernel API Manual — yes, the kernel manual, we're doing big-kid stuff today bestie 🎀

✨ NAME ✨

scoped_user_write_access — literally just starts a scoped user write access. that's the whole vibe. no cap.

🌸 SYNOPSIS 🌸

scoped_user_write_access (udst , elbl );

🦋 ARGUMENTS 🦋

• udst — a pointer to the user space address you wanna write to 🫶 that's the whole destination situation.
• elbl — the error label to goto when the access region gets rejected 😭 like, if it doesn't pass the vibe check, that's where you bounce to.

💖 DESCRIPTION 💖

the size of the access, starting from udst, is determined via sizeof(*udst)). that's it, that's the math 🔥

for further information, go look at __scoped_user_access above — it's giving "the details live up there, i'm just the intro" ✨

ngl, if you're here you probably want the whole scoped-access family, not just this one. keep scrolling to SEE ALSO, it's a whole group chat 👑

👑 SEE ALSO 👑

Kernel file ./include/linux/uaccess.h — and the whole squad:

• __copy_to_user_inatomic(9)
• probe_subpage_writeable(9)
• copy_struct_from_user(9)
• copy_struct_to_user(9)
• get_kernel_nofault(9)
• __scoped_user_access_begin(9)
• __scoped_user_access(9)
• scoped_user_read_access_size(9)
• scoped_user_read_access(9)
• scoped_user_write_access_size(9)
• scoped_user_rw_access_size(9)
• scoped_user_rw_access(9)
• get_user_inline(9)
• put_user_inline(9)

okay that's the page 🧚 mwah 💜 big kisses from ./include/linux, dated October 2026 — yes she's from the future, main character energy fr fr 💅✨