285 static bool elf_is_shdr_sane(const struct elf_shdr *shdr, size_t buf_len)  in elf_is_shdr_sane()  argument
290 	if (shdr->sh_type == SHT_NULL)  in elf_is_shdr_sane()
294 	switch (shdr->sh_type) {  in elf_is_shdr_sane()
296 		size_ok = shdr->sh_entsize == sizeof(Elf_Sym);  in elf_is_shdr_sane()
299 		size_ok = shdr->sh_entsize == sizeof(Elf_Rela);  in elf_is_shdr_sane()
302 		size_ok = shdr->sh_entsize == sizeof(Elf_Dyn);  in elf_is_shdr_sane()
305 		size_ok = shdr->sh_entsize == sizeof(Elf_Rel);  in elf_is_shdr_sane()
325 	} else if (shdr->sh_addr + shdr->sh_size < shdr->sh_addr) {  in elf_is_shdr_sane()
330 	if (shdr->sh_type != SHT_NOBITS) {  in elf_is_shdr_sane()
331 		if (shdr->sh_offset + shdr->sh_size < shdr->sh_offset) {  in elf_is_shdr_sane()
334 		} else if (shdr->sh_offset + shdr->sh_size > buf_len) {  in elf_is_shdr_sane()
346 	struct elf_shdr *shdr = &elf_info->sechdrs[idx];  in elf_read_shdr()  local
354 	shdr->sh_name      = elf32_to_cpu(ehdr, buf_shdr->sh_name);  in elf_read_shdr()
355 	shdr->sh_type      = elf32_to_cpu(ehdr, buf_shdr->sh_type);  in elf_read_shdr()
356 	shdr->sh_addr      = elf_addr_to_cpu(ehdr, buf_shdr->sh_addr);  in elf_read_shdr()
357 	shdr->sh_offset    = elf_addr_to_cpu(ehdr, buf_shdr->sh_offset);  in elf_read_shdr()
358 	shdr->sh_link      = elf32_to_cpu(ehdr, buf_shdr->sh_link);  in elf_read_shdr()
359 	shdr->sh_info      = elf32_to_cpu(ehdr, buf_shdr->sh_info);  in elf_read_shdr()
365 	shdr->sh_flags     = elf_addr_to_cpu(ehdr, buf_shdr->sh_flags);  in elf_read_shdr()
366 	shdr->sh_size      = elf_addr_to_cpu(ehdr, buf_shdr->sh_size);  in elf_read_shdr()
367 	shdr->sh_addralign = elf_addr_to_cpu(ehdr, buf_shdr->sh_addralign);  in elf_read_shdr()
368 	shdr->sh_entsize   = elf_addr_to_cpu(ehdr, buf_shdr->sh_entsize);  in elf_read_shdr()
370 	return elf_is_shdr_sane(shdr, len) ? 0 : -ENOEXEC;  in elf_read_shdr()