elf_validity...he_index_sym(9)

💖 NAME 💖

Okay bestie, welcome to the Kernel API Manual page elf_validity...he_index_sym(9). The function is elf_validity_cache_index_sym, and its whole job is literally “Validate and cache symtab index.” 💅

✨ SYNOPSIS ✨

int elf_validity_cache_index_sym (struct load_info *info );

🎀 ARGUMENTS 🎀

• info — Load info to cache symtab index in. It must have load_info->sechdrs and load_info->secstrings populated, bestie. No cap.

🦋 DESCRIPTION 🦋

So this one checks that there is exactly one symbol table. Then it caches that table’s index in load_info->index.sym. That’s the whole vibe. Obsessed with the specificity. ✨

🌸 RETURN 🌸

• 0 if valid 🫶
• -ENOEXEC on failure 😭

🔥 SEE ALSO 🔥

Kernel file ./kernel/module/main.c says hi, and these are all the related besties:

• 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_str(9)
• elf_validity_cache_index_versions(9)
• elf_validity_cache_index(9)
• elf_validity_cache_strtab(9)
• is_module_address(9)
• __module_address(9)
• is_module_text_address(9)
• __module_text_address(9)

Mwah 💋 — source/version: ./kernel/module, date: October 2026. Stay iconic, bestie! 🎀