diff --git a/util/grub-module-verifierXX.c b/util/grub-module-verifierXX.c index 4e6cf133f..cf3ff0dfa 100644 --- a/util/grub-module-verifierXX.c +++ b/util/grub-module-verifierXX.c @@ -134,6 +134,9 @@ grub_target_to_host_real (const struct grub_module_verifier_arch *arch, grub_uin static Elf_Shdr * get_shdr (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e, Elf_Word index) { + if (grub_target_to_host (e->e_shoff) == 0) + grub_util_error ("Invalid section header offset"); + return (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff) + index * grub_target_to_host16 (e->e_shentsize)); }