--- a/bfd/elfcode.h 2018-06-25 02:38:57.000000000 +0800 +++ b/bfd/elfcode.h 2019-04-04 12:04:52.258000000 +0800 @@ -776,7 +776,12 @@ elf_object_p (bfd *abfd) if (i_ehdrp->e_phnum > ((bfd_size_type) -1) / sizeof (*i_phdr)) goto got_wrong_format_error; #endif - amt = (bfd_size_type) i_ehdrp->e_phnum * sizeof (*i_phdr); + /* Check for a corrupt input file with an impossibly large number + of program headers. */ + if (bfd_get_file_size (abfd) > 0 + && i_ehdrp->e_phnum > bfd_get_file_size (abfd)) + goto got_no_match; + amt = (bfd_size_type) i_ehdrp->e_phnum * sizeof (*i_phdr); elf_tdata (abfd)->phdr = (Elf_Internal_Phdr *) bfd_alloc (abfd, amt); if (elf_tdata (abfd)->phdr == NULL) goto got_no_match;