__module_address(9)

✨ __module_address — like, the module manual page ✨

okay bestie, welcome to the __module_address(9) glow-up 💅 this is the kernel API manual, and it's short but it matters, so pay attention fr fr.

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🌸 NAME 🌸

__module_address — get the module which contains an address.

like, you hand it an address, it hands you back the module that lives there. matchmaker behavior honestly 🫶

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🎀 SYNOPSIS 🎀

struct module * __module_address (unsigned long addr );

that's it. that's the whole signature. short king 👑

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🦋 ARGUMENTS 🦋

• addr — the address. that's literally it, that's the whole argument. you give it an address, bestie, and it figures out the rest ✨

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💖 DESCRIPTION 💖

so here's the thing that actually matters: you must call this within an RCU read section or with the module mutex held, so that the module doesn't get freed during this.

⚠️ no cap, this is a real requirement — skip the RCU read section and skip holding the module mutex, and the module could get yanked out from under you mid-call. not the vibe. 💀

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🔥 SEE ALSO 🔥

like the whole friend group, honestly. go say hi 👋

• Kernel file ./kernel/module/main.c
• find_any_unique_sec(9)
• is_module_percpu_address(9)
• module_refcount(9)
• verify_module_namespace(9)
• elf_validity_ehdr(9)
• elf_validity_cache_sechdrs(9)
• elf_validity_cache_secstrings(9)
• elf_validity_cache_index_info(9)
• elf_validity_cache_index_mod(9)
• elf_validity_cache_index_sym(9)
• elf_validity_cache_index_str(9)
• elf_validity_cache_index_versions(9)
• elf_validity_cache_index(9)
• elf_validity_cache_strtab(9)
• is_module_address(9)
• is_module_text_address(9)
• __module_text_address(9)

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🌈 the sign-off 🌈

this icon lives in ./kernel/module, dated October 2026. screenshot it, frame it, put it on your wall 🎀✨

stay safe out there, hold that mutex, slay 💜🦋