security_tu...loc_security(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, welcome to the Kernel API Manual page for security_tu...loc_security(9) — aka the hook for security_tun_dev_alloc_security, and she is short but she matters. 💅✨ Buckle up, we're doing facts with flavor.

🌸 NAME 🌸

security_tun_dev_alloc_security — allocate a LSM blob for a TUN device. That's the whole name, that's the whole assignment, and she ate. 🎀

✨ SYNOPSIS ✨

int security_tun_dev_alloc_security (void **security );

🎀 ARGUMENTS 🎀

  • security — pointer to the LSM blob. That's the one pointer, bestie. Don't lose her. 🫶

🦋 DESCRIPTION 🦋

Okay so this hook is the moment a module gets to allocate a security structure for a TUN device, and it returns the pointer in security. That's literally the vibe: module needs a security structure for a TUN device, hook says "say less," pointer lands in security. No cap. 💜

💖 RETURN 💖

Returns a zero on success, negative values on failure. So 0 is the slay; negative values are the "oop, something went wrong" text. 💀

👑 SEE ALSO 👑

Kernel file ./security/security.c is right here, and the extended fam is, like, totally stacked. Same order, every single one:

mwah 💋 this page lives under ./security and is dated October 2026, so that's the cute little source/version + date sign-off, bestie. Catch you in the next group chat 🫶✨💖

📦 where this page comes from