put_cred_many(9)

✨ put_cred_many(9) ✨

ok so this is a page from the Kernel API Manual bestie, and it's about put_cred_many — the little cleanup function that says "we're done with these creds now, byeee" 💅

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🌸 NAME 🌸

put_cred_many — release a reference to a set of credentials

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🎀 SYNOPSIS 🎀

void put_cred_many (const struct cred *_cred , int nr );

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🦋 ARGUMENTS 🦋

• _cred — the credentials you're releasing, king 👑
• nr — how many references you're letting go of, no cap

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💖 DESCRIPTION 💖

So what it does is: it releases a reference to a set of credentials, and when the very last ref gets released, the creds get deleted too — like, actually gone, that's the moment they yeet out of existence 🫶

And if you pass NULL? Literally nothing happens. Nothing. Zero. Nada. It just vibes 💀

Now, the reason _cred is a const pointer to a set of credentials is because the credentials on task_struct are attached by const pointers — and that's on purpose, to prevent anyone from accidentally altering credential sets that are meant to be immutable. It's giving "look but don't touch" energy 🔥 iykyk.

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🌈 SEE ALSO 🌈

• Kernel file ./include/linux/cred.h
• get_group_info(9)
• put_group_info(9)
• get_cred_many(9)
• current_cred(9)
• current_real_cred(9)
• __task_cred(9)
• get_current_cred(9)
• get_current_user(9)
• get_current_groups(9)

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ngl bestie, go read the whole cred family, they're all iconic in their own way 💜

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and that's the page!! 🧚 from ./include/linux, dated October 2026 — mwah, slay, see u next time 🍓✨