__kfence_free(9)

💅 __kfence_free — from the Kernel API Manual, bestie 💖

Okay so picture this: you've got a KFENCE heap object and it's time to let it go. This function is literally the send-off. 🎀

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✨ NAME ✨

__kfence_free — release a KFENCE heap object back to the KFENCE pool, no cap 🦋

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🌸 SYNOPSIS 🌸

void __kfence_free (void *addr );

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💜 ARGUMENTS 💜

• addr — the object you're freeing. The one getting released. Its moment. 👑

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🧚 DESCRIPTION 🧚

Requires: is_kfence_address(addr) — like, this is not optional, bestie. Check it first. 🙈

Release a KFENCE object and mark it as freed. That's the whole vibe: object released, marked freed, done. Slay. ✨

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🔥 SEE ALSO 🔥

Kernel file ./include/linux/kfence.h, plus the whole friend group:

• is_kfence_address(9)
• kfence_alloc_pool_and_metadata(9)
• kfence_init(9)
• kfence_shutdown_cache(9)
• kfence_alloc(9)
• kfence_ksize(9)
• kfence_object_start(9)
• kfence_free(9)
• kfence_handle_page_fault(9)
• __kfence_obj_info(9)

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Anyways, that's the page! 🫶 It lives in ./include/linux, dated October 2026, and honestly? Iconic. Go free your objects responsibly, bestie. 💅🌈