do_setattr(9)

📦 version 7.3.1, in nixpkgs unstable

💖 do_setattr(9) — Smack process attribute setting 💖

okay so bestie, this is a page from the Kernel API Manual, and it's all about do_setattr — the Smack process attribute setter. not me being obsessed with a kernel setter, but here we are 💅.

🌸 NAME 🌸

do_setattr — Smack process attribute setting, periodt.

✨ SYNOPSIS ✨

int do_setattr (unsigned int attr , void *value , size_t size );

🎀 ARGUMENTS 🎀

  • attr — the ID of the attribute. it's an unsigned int, and it's literally the "which attribute are we setting" girlie.
  • value — the value to set. a void *, so it's the actual payload vibe.
  • size — the size of the value. it's a size_t, and yes bestie it matters because that's how big the value is.

🦋 DESCRIPTION 🦋

so what it does: sets the Smack value of the task. that's the whole main character move.

bestie, listen: only setting self is permitted, and only with privilege. like, no setting other tasks, no privilege-free chaos. periodt. 🫶

Returns 0 on success or an error code. that's the vibe check: zero = slay, error code = not slay 😭.

🌈 SEE ALSO 🌈

the whole Smack squad is here, iykyk:

mwah 💋 — this page's source/version is ./security/smack, it's dated October 2026, and it's do_setattr(9) signing off. slay and stay privileged, bestie 🫶✨

📦 where this page comes from