diff options
Diffstat (limited to 'bfd/elflink.c')
| -rw-r--r-- | bfd/elflink.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/bfd/elflink.c b/bfd/elflink.c index 58acc14..0e06903 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -1879,6 +1879,7 @@ _bfd_elf_link_assign_sym_version (struct elf_link_hash_entry *h, void *data) static bfd_boolean elf_link_read_relocs_from_section (bfd *abfd, + asection *sec, Elf_Internal_Shdr *shdr, void *external_relocs, Elf_Internal_Rela *internal_relocs) @@ -1888,6 +1889,8 @@ elf_link_read_relocs_from_section (bfd *abfd, const bfd_byte *erela; const bfd_byte *erelaend; Elf_Internal_Rela *irela; + Elf_Internal_Shdr *symtab_hdr; + size_t nsyms; /* If there aren't any relocations, that's OK. */ if (!shdr) @@ -1901,6 +1904,9 @@ elf_link_read_relocs_from_section (bfd *abfd, if (bfd_bread (external_relocs, shdr->sh_size, abfd) != shdr->sh_size) return FALSE; + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + nsyms = symtab_hdr->sh_size / symtab_hdr->sh_entsize; + bed = get_elf_backend_data (abfd); /* Convert the external relocations to the internal format. */ @@ -1919,7 +1925,21 @@ elf_link_read_relocs_from_section (bfd *abfd, irela = internal_relocs; while (erela < erelaend) { + bfd_vma r_symndx; + (*swap_in) (abfd, erela, irela); + r_symndx = ELF32_R_SYM (irela->r_info); + if (bed->s->arch_size == 64) + r_symndx >>= 24; + if ((size_t) r_symndx >= nsyms) + { + (*_bfd_error_handler) + (_("%s: bad reloc symbol index (0x%lx >= 0x%lx) for offset 0x%lx in section `%s'"), + bfd_archive_filename (abfd), (unsigned long) r_symndx, + (unsigned long) nsyms, irela->r_offset, sec->name); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } irela += bed->s->int_rels_per_ext_rel; erela += shdr->sh_entsize; } @@ -1983,12 +2003,12 @@ _bfd_elf_link_read_relocs (bfd *abfd, external_relocs = alloc1; } - if (!elf_link_read_relocs_from_section (abfd, rel_hdr, + if (!elf_link_read_relocs_from_section (abfd, o, rel_hdr, external_relocs, internal_relocs)) goto error_return; if (!elf_link_read_relocs_from_section - (abfd, + (abfd, o, elf_section_data (o)->rel_hdr2, ((bfd_byte *) external_relocs) + rel_hdr->sh_size, internal_relocs + (NUM_SHDR_ENTRIES (rel_hdr) |