elf_is_ehdr_sane(9)

elf_is_ehdr_sane(9) ✨

hiii bestie, welcome to the elf_is_ehdr_sane(9) page from the Kernel API Manual 🫶 this one is literally the vibe check for an ELF header: it checks that it is safe to use the ELF header. no cap, that's the whole mission 💅

🌸 NAME 🌸

elf_is_ehdr_sane — check that it is safe to use the ELF header 🎀

🎀 SYNOPSIS 🎀

bool elf_is_ehdr_sane (const struct elfhdr *ehdr , size_t buf_len );

🦋 ARGUMENTS 🦋

• ehdr — -- undescribed -- 😭 yes, that is literally what the page says. the source gives us no description, so we are not inventing one, periodt.
• buf_len — size of the buffer in which the ELF file is loaded. iconic buffer-size energy, fr fr.

💖 SEE ALSO 💖

• Kernel file: ./kernel/kexec_elf.c
• elf_is_phdr_sane(9)
• elf_read_phdrs(9)
• elf_read_from_buffer(9)
• kexec_free_elf_info(9)
• kexec_build_elf_info(9)
• kexec_elf_load(9)

🌈 cute little sign-off: source ./kernel, date October 2026, page elf_is_ehdr_sane(9) — byeee bestie, go be safe with those ELF headers 🫶💖