__task_cred(9)

💅 __task_cred (9) — like, the kernel API manual page bestie 🎀

okay so this is a page from the Kernel API Manual and honestly? it's a short one, but she's iconic and she matters. buckle up, it's literally a two-minute read 🦋

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✨ NAME ✨

__task_cred — access a task's objective credentials 👑

🌸 SYNOPSIS 🌸

__task_cred (task );

that's it. that's the whole call. one (1) argument, no notes 💅

🎀 ARGUMENTS 🎀

• task — the task you're querying, bestie. the one you wanna peek at. the main character 👀

🧚 DESCRIPTION 🧚

okay so real talk: this function gets you the objective credentials of a task. not the subjective ones, not the vibe-based ones — the objective ones, periodt ✨

⚠️ the caller must hold the RCU readlock. like, this is not optional, this is not a suggestion, this is the law. no RCU readlock, no creds. got it? 🫶

and here's the part where people mess up, so listen up 📢 — the result of this function should not be passed directly to get_cred. nope. not happening. instead, use get_task_cred and you'll be slaying. two different functions, two different jobs, iykyk 💀

🌈 SEE ALSO 🌈

the kernel file is ./include/linux/cred.h and she comes with a whole friend group 💖:

• get_group_info(9)
• put_group_info(9)
• get_cred_many(9)
• put_cred_many(9)
• current_cred(9)
• current_real_cred(9)
• get_current_cred(9)
• get_current_user(9)
• get_current_groups(9)

like, go read all of them, they're all connected, it's giving credential cinematic universe 🔥

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okay that's the page!! shoutout to ./include/linux and the October 2026 date stamp — she's fresh, she's current, she's literally serving kernel docs energy ✨💜 bye bestie, go hold that RCU readlock 🫶🎀