security_task_fix_setuid(9)

📦 version 7.3.1, in nixpkgs unstable

Bestie, welcome to the security_task_fix_setuid(9) page from the Kernel API Manual — yes, we're in kernel-hook territory and it's lowkey iconic. 💅

💖 NAME 💖

security_task_fix_setuid — update the LSM with new user id attributes. That's the whole vibe. ✨

✨ SYNOPSIS ✨

int security_task_fix_setuid (struct cred *new , const struct cred *old
, int flags );

🎀 ARGUMENTS 🎀

  • new — updated credentials. The fresh set, okay?
  • old — credentials being replaced. The old era, we don't miss it.
  • flags — LSM_SETID_* flag values. These tell you which setid-ish call came through.

🦋 DESCRIPTION 🦋

Okay so: this hook updates the module's state after setting one or more of the user identity attributes of the current process. The flags parameter indicates which of the set*uid system calls invoked this hook. new is the set of credentials that will be installed — so make your modifications to new rather than to current->cred, fr fr. 🫶

🌸 RETURN 🌸

Returns 0 on success. That's it, that's the return. Slay. 💖

👑 SEE ALSO 👑

Kernel file ./security/security.c, plus the entire LSM friend group — the guest list is long, periodt:

Okay bestie, that's the whole page. It comes from ./security, dated October 2026, and it's the security_task_fix_setuid(9) manual page — mwah. 💖🎀

📦 where this page comes from