diff -cpr ../binutils-2.24.orig/bfd/elf.c bfd/elf.c *** ../binutils-2.24.orig/bfd/elf.c 2014-10-31 11:50:20.132220820 +0000 --- bfd/elf.c 2014-10-31 11:53:23.669281197 +0000 *************** setup_group (bfd *abfd, Elf_Internal_Shd *** 608,616 **** if (shdr->contents == NULL) { _bfd_error_handler ! (_("%B: Corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); bfd_set_error (bfd_error_bad_value); ! return FALSE; } memset (shdr->contents, 0, amt); --- 608,617 ---- if (shdr->contents == NULL) { _bfd_error_handler ! (_("%B: corrupt size field in group section header: 0x%lx"), abfd, shdr->sh_size); bfd_set_error (bfd_error_bad_value); ! -- num_group; ! continue; } memset (shdr->contents, 0, amt); *************** setup_group (bfd *abfd, Elf_Internal_Shd *** 618,625 **** if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 || (bfd_bread (shdr->contents, shdr->sh_size, abfd) != shdr->sh_size)) ! return FALSE; ! /* Translate raw contents, a flag word followed by an array of elf section indices all in target byte order, to the flag word followed by an array of elf section --- 619,635 ---- if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0 || (bfd_bread (shdr->contents, shdr->sh_size, abfd) != shdr->sh_size)) ! { ! _bfd_error_handler ! (_("%B: invalid size field in group section header: 0x%lx"), abfd, shdr->sh_size); ! bfd_set_error (bfd_error_bad_value); ! -- num_group; ! /* PR 17510: If the group contents are even partially ! corrupt, do not allow any of the contents to be used. */ ! memset (shdr->contents, 0, amt); ! continue; ! } ! /* Translate raw contents, a flag word followed by an array of elf section indices all in target byte order, to the flag word followed by an array of elf section *************** setup_group (bfd *abfd, Elf_Internal_Shd *** 651,656 **** --- 661,681 ---- } } } + + /* PR 17510: Corrupt binaries might contain invalid groups. */ + if (num_group != (unsigned) elf_tdata (abfd)->num_group) + { + elf_tdata (abfd)->num_group = num_group; + + /* If all groups are invalid then fail. */ + if (num_group == 0) + { + elf_tdata (abfd)->group_sect_ptr = NULL; + elf_tdata (abfd)->num_group = num_group = -1; + (*_bfd_error_handler) (_("%B: no valid group sections found"), abfd); + bfd_set_error (bfd_error_bad_value); + } + } } } *************** setup_group (bfd *abfd, Elf_Internal_Shd *** 716,721 **** --- 741,747 ---- { (*_bfd_error_handler) (_("%B: no group info for section %A"), abfd, newsect); + return FALSE; } return TRUE; } *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1556,1593 **** Elf_Internal_Ehdr *ehdr; const struct elf_backend_data *bed; const char *name; if (shindex >= elf_numsections (abfd)) return FALSE; hdr = elf_elfsections (abfd)[shindex]; ehdr = elf_elfheader (abfd); name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, hdr->sh_name); if (name == NULL) ! return FALSE; bed = get_elf_backend_data (abfd); switch (hdr->sh_type) { case SHT_NULL: /* Inactive section. Throw it away. */ ! return TRUE; ! case SHT_PROGBITS: /* Normal section with contents. */ ! case SHT_NOBITS: /* .bss section. */ ! case SHT_HASH: /* .hash section. */ ! case SHT_NOTE: /* .note section. */ case SHT_INIT_ARRAY: /* .init_array section. */ case SHT_FINI_ARRAY: /* .fini_array section. */ case SHT_PREINIT_ARRAY: /* .preinit_array section. */ case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ case SHT_GNU_HASH: /* .gnu.hash section. */ ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); case SHT_DYNAMIC: /* Dynamic linking information. */ if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! return FALSE; if (hdr->sh_link > elf_numsections (abfd)) { /* PR 10478: Accept Solaris binaries with a sh_link --- 1582,1655 ---- Elf_Internal_Ehdr *ehdr; const struct elf_backend_data *bed; const char *name; + bfd_boolean ret = TRUE; + static bfd_boolean * sections_being_created = NULL; + static bfd * sections_being_created_abfd = NULL; + static unsigned int nesting = 0; if (shindex >= elf_numsections (abfd)) return FALSE; + if (++ nesting > 3) + { + /* PR17512: A corrupt ELF binary might contain a recursive group of + sections, each the string indicies pointing to the next in the + loop. Detect this here, by refusing to load a section that we are + already in the process of loading. We only trigger this test if + we have nested at least three sections deep as normal ELF binaries + can expect to recurse at least once. + + FIXME: It would be better if this array was attached to the bfd, + rather than being held in a static pointer. */ + + if (sections_being_created_abfd != abfd) + sections_being_created = NULL; + if (sections_being_created == NULL) + { + /* FIXME: It would be more efficient to attach this array to the bfd somehow. */ + sections_being_created = (bfd_boolean *) + bfd_zalloc (abfd, elf_numsections (abfd) * sizeof (bfd_boolean)); + sections_being_created_abfd = abfd; + } + if (sections_being_created [shindex]) + { + (*_bfd_error_handler) + (_("%B: warning: loop in section dependencies detected"), abfd); + return FALSE; + } + sections_being_created [shindex] = TRUE; + } + hdr = elf_elfsections (abfd)[shindex]; ehdr = elf_elfheader (abfd); name = bfd_elf_string_from_elf_section (abfd, ehdr->e_shstrndx, hdr->sh_name); if (name == NULL) ! goto fail; bed = get_elf_backend_data (abfd); switch (hdr->sh_type) { case SHT_NULL: /* Inactive section. Throw it away. */ ! goto success; ! case SHT_PROGBITS: /* Normal section with contents. */ ! case SHT_NOBITS: /* .bss section. */ ! case SHT_HASH: /* .hash section. */ ! case SHT_NOTE: /* .note section. */ case SHT_INIT_ARRAY: /* .init_array section. */ case SHT_FINI_ARRAY: /* .fini_array section. */ case SHT_PREINIT_ARRAY: /* .preinit_array section. */ case SHT_GNU_LIBLIST: /* .gnu.liblist section. */ case SHT_GNU_HASH: /* .gnu.hash section. */ ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; case SHT_DYNAMIC: /* Dynamic linking information. */ if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! goto fail; ! if (hdr->sh_link > elf_numsections (abfd)) { /* PR 10478: Accept Solaris binaries with a sh_link *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1601,1611 **** break; /* Otherwise fall through. */ default: ! return FALSE; } } else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) ! return FALSE; else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) { Elf_Internal_Shdr *dynsymhdr; --- 1663,1673 ---- break; /* Otherwise fall through. */ default: ! goto fail; } } else if (elf_elfsections (abfd)[hdr->sh_link] == NULL) ! goto fail; else if (elf_elfsections (abfd)[hdr->sh_link]->sh_type != SHT_STRTAB) { Elf_Internal_Shdr *dynsymhdr; *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1634,1657 **** } } } ! break; ! case SHT_SYMTAB: /* A symbol table */ if (elf_onesymtab (abfd) == shindex) ! return TRUE; if (hdr->sh_entsize != bed->s->sizeof_sym) ! return FALSE; if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) { if (hdr->sh_size != 0) ! return FALSE; /* Some assemblers erroneously set sh_info to one with a zero sh_size. ld sees this as a global symbol count of (unsigned) -1. Fix it here. */ hdr->sh_info = 0; ! return TRUE; } BFD_ASSERT (elf_onesymtab (abfd) == 0); elf_onesymtab (abfd) = shindex; elf_tdata (abfd)->symtab_hdr = *hdr; --- 1696,1721 ---- } } } ! goto success; ! case SHT_SYMTAB: /* A symbol table. */ if (elf_onesymtab (abfd) == shindex) ! goto success; if (hdr->sh_entsize != bed->s->sizeof_sym) ! goto fail; ! if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) { if (hdr->sh_size != 0) ! goto fail; /* Some assemblers erroneously set sh_info to one with a zero sh_size. ld sees this as a global symbol count of (unsigned) -1. Fix it here. */ hdr->sh_info = 0; ! goto success; } + BFD_ASSERT (elf_onesymtab (abfd) == 0); elf_onesymtab (abfd) = shindex; elf_tdata (abfd)->symtab_hdr = *hdr; *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1668,1674 **** && (abfd->flags & DYNAMIC) != 0 && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! return FALSE; /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we can't read symbols without that section loaded as well. It --- 1732,1738 ---- && (abfd->flags & DYNAMIC) != 0 && ! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! goto fail; /* Go looking for SHT_SYMTAB_SHNDX too, since if there is one we can't read symbols without that section loaded as well. It *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1694,1719 **** break; } if (i != shindex) ! return bfd_section_from_shdr (abfd, i); } ! return TRUE; ! case SHT_DYNSYM: /* A dynamic symbol table */ if (elf_dynsymtab (abfd) == shindex) ! return TRUE; if (hdr->sh_entsize != bed->s->sizeof_sym) ! return FALSE; if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) { if (hdr->sh_size != 0) ! return FALSE; /* Some linkers erroneously set sh_info to one with a zero sh_size. ld sees this as a global symbol count of (unsigned) -1. Fix it here. */ hdr->sh_info = 0; ! return TRUE; } BFD_ASSERT (elf_dynsymtab (abfd) == 0); elf_dynsymtab (abfd) = shindex; elf_tdata (abfd)->dynsymtab_hdr = *hdr; --- 1758,1786 ---- break; } if (i != shindex) ! ret = bfd_section_from_shdr (abfd, i); } ! goto success; ! case SHT_DYNSYM: /* A dynamic symbol table. */ if (elf_dynsymtab (abfd) == shindex) ! goto success; if (hdr->sh_entsize != bed->s->sizeof_sym) ! goto fail; ! if (hdr->sh_info * hdr->sh_entsize > hdr->sh_size) { if (hdr->sh_size != 0) ! goto fail; ! /* Some linkers erroneously set sh_info to one with a zero sh_size. ld sees this as a global symbol count of (unsigned) -1. Fix it here. */ hdr->sh_info = 0; ! goto success; } + BFD_ASSERT (elf_dynsymtab (abfd) == 0); elf_dynsymtab (abfd) = shindex; elf_tdata (abfd)->dynsymtab_hdr = *hdr; *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1722,1755 **** /* Besides being a symbol table, we also treat this as a regular section, so that objcopy can handle it. */ ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections */ if (elf_symtab_shndx (abfd) == shindex) ! return TRUE; BFD_ASSERT (elf_symtab_shndx (abfd) == 0); elf_symtab_shndx (abfd) = shindex; elf_tdata (abfd)->symtab_shndx_hdr = *hdr; elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; ! return TRUE; ! case SHT_STRTAB: /* A string table */ if (hdr->bfd_section != NULL) ! return TRUE; if (ehdr->e_shstrndx == shindex) { elf_tdata (abfd)->shstrtab_hdr = *hdr; elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; ! return TRUE; } if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) { symtab_strtab: elf_tdata (abfd)->strtab_hdr = *hdr; elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; ! return TRUE; } if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) { dynsymtab_strtab: --- 1789,1826 ---- /* Besides being a symbol table, we also treat this as a regular section, so that objcopy can handle it. */ ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; ! case SHT_SYMTAB_SHNDX: /* Symbol section indices when >64k sections. */ if (elf_symtab_shndx (abfd) == shindex) ! goto success; BFD_ASSERT (elf_symtab_shndx (abfd) == 0); elf_symtab_shndx (abfd) = shindex; elf_tdata (abfd)->symtab_shndx_hdr = *hdr; elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->symtab_shndx_hdr; ! goto success; ! case SHT_STRTAB: /* A string table. */ if (hdr->bfd_section != NULL) ! goto success; ! if (ehdr->e_shstrndx == shindex) { elf_tdata (abfd)->shstrtab_hdr = *hdr; elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->shstrtab_hdr; ! goto success; } + if (elf_elfsections (abfd)[elf_onesymtab (abfd)]->sh_link == shindex) { symtab_strtab: elf_tdata (abfd)->strtab_hdr = *hdr; elf_elfsections (abfd)[shindex] = &elf_tdata (abfd)->strtab_hdr; ! goto success; } + if (elf_elfsections (abfd)[elf_dynsymtab (abfd)]->sh_link == shindex) { dynsymtab_strtab: *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1758,1765 **** elf_elfsections (abfd)[shindex] = hdr; /* We also treat this as a regular section, so that objcopy can handle it. */ ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); } /* If the string table isn't one of the above, then treat it as a --- 1829,1837 ---- elf_elfsections (abfd)[shindex] = hdr; /* We also treat this as a regular section, so that objcopy can handle it. */ ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); ! goto success; } /* If the string table isn't one of the above, then treat it as a *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1777,1785 **** { /* Prevent endless recursion on broken objects. */ if (i == shindex) ! return FALSE; if (! bfd_section_from_shdr (abfd, i)) ! return FALSE; if (elf_onesymtab (abfd) == i) goto symtab_strtab; if (elf_dynsymtab (abfd) == i) --- 1849,1857 ---- { /* Prevent endless recursion on broken objects. */ if (i == shindex) ! goto fail; if (! bfd_section_from_shdr (abfd, i)) ! goto fail; if (elf_onesymtab (abfd) == i) goto symtab_strtab; if (elf_dynsymtab (abfd) == i) *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1787,1793 **** } } } ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); case SHT_REL: case SHT_RELA: --- 1859,1866 ---- } } } ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; case SHT_REL: case SHT_RELA: *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1802,1808 **** if (hdr->sh_entsize != (bfd_size_type) (hdr->sh_type == SHT_REL ? bed->s->sizeof_rel : bed->s->sizeof_rela)) ! return FALSE; /* Check for a bogus link to avoid crashing. */ if (hdr->sh_link >= num_sec) --- 1875,1881 ---- if (hdr->sh_entsize != (bfd_size_type) (hdr->sh_type == SHT_REL ? bed->s->sizeof_rel : bed->s->sizeof_rela)) ! goto fail; /* Check for a bogus link to avoid crashing. */ if (hdr->sh_link >= num_sec) *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1810,1817 **** ((*_bfd_error_handler) (_("%B: invalid link %lu for reloc section %s (index %u)"), abfd, hdr->sh_link, name, shindex)); ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); } /* For some incomprehensible reason Oracle distributes --- 1883,1891 ---- ((*_bfd_error_handler) (_("%B: invalid link %lu for reloc section %s (index %u)"), abfd, hdr->sh_link, name, shindex)); ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); ! goto success; } /* For some incomprehensible reason Oracle distributes *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1852,1858 **** if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) && ! bfd_section_from_shdr (abfd, hdr->sh_link)) ! return FALSE; /* If this reloc section does not use the main symbol table we don't treat it as a reloc section. BFD can't adequately --- 1926,1932 ---- if ((elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_SYMTAB || elf_elfsections (abfd)[hdr->sh_link]->sh_type == SHT_DYNSYM) && ! bfd_section_from_shdr (abfd, hdr->sh_link)) ! goto fail; /* If this reloc section does not use the main symbol table we don't treat it as a reloc section. BFD can't adequately *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1867,1880 **** || hdr->sh_info >= num_sec || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); if (! bfd_section_from_shdr (abfd, hdr->sh_info)) ! return FALSE; target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); if (target_sect == NULL) ! return FALSE; esdt = elf_section_data (target_sect); if (hdr->sh_type == SHT_RELA) --- 1941,1958 ---- || hdr->sh_info >= num_sec || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_REL || elf_elfsections (abfd)[hdr->sh_info]->sh_type == SHT_RELA) ! { ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); ! goto success; ! } if (! bfd_section_from_shdr (abfd, hdr->sh_info)) ! goto fail; ! target_sect = bfd_section_from_elf_index (abfd, hdr->sh_info); if (target_sect == NULL) ! goto fail; esdt = elf_section_data (target_sect); if (hdr->sh_type == SHT_RELA) *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1886,1892 **** amt = sizeof (*hdr2); hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); if (hdr2 == NULL) ! return FALSE; *hdr2 = *hdr; *p_hdr = hdr2; elf_elfsections (abfd)[shindex] = hdr2; --- 1964,1970 ---- amt = sizeof (*hdr2); hdr2 = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); if (hdr2 == NULL) ! goto fail; *hdr2 = *hdr; *p_hdr = hdr2; elf_elfsections (abfd)[shindex] = hdr2; *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1902,1935 **** target_sect->use_rela_p = 1; } abfd->flags |= HAS_RELOC; ! return TRUE; } case SHT_GNU_verdef: elf_dynverdef (abfd) = shindex; elf_tdata (abfd)->dynverdef_hdr = *hdr; ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); case SHT_GNU_versym: if (hdr->sh_entsize != sizeof (Elf_External_Versym)) ! return FALSE; elf_dynversym (abfd) = shindex; elf_tdata (abfd)->dynversym_hdr = *hdr; ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); case SHT_GNU_verneed: elf_dynverref (abfd) = shindex; elf_tdata (abfd)->dynverref_hdr = *hdr; ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); case SHT_SHLIB: ! return TRUE; case SHT_GROUP: if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) ! return FALSE; if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! return FALSE; if (hdr->contents != NULL) { Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; --- 1980,2019 ---- target_sect->use_rela_p = 1; } abfd->flags |= HAS_RELOC; ! goto success; } case SHT_GNU_verdef: elf_dynverdef (abfd) = shindex; elf_tdata (abfd)->dynverdef_hdr = *hdr; ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; case SHT_GNU_versym: if (hdr->sh_entsize != sizeof (Elf_External_Versym)) ! goto fail; ! elf_dynversym (abfd) = shindex; elf_tdata (abfd)->dynversym_hdr = *hdr; ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; case SHT_GNU_verneed: elf_dynverref (abfd) = shindex; elf_tdata (abfd)->dynverref_hdr = *hdr; ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; case SHT_SHLIB: ! goto success; case SHT_GROUP: if (! IS_VALID_GROUP_SECTION_HEADER (hdr, GRP_ENTRY_SIZE)) ! goto fail; ! if (!_bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! goto fail; ! if (hdr->contents != NULL) { Elf_Internal_Group *idx = (Elf_Internal_Group *) hdr->contents; *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1955,1961 **** } } } ! break; default: /* Possibly an attributes section. */ --- 2039,2045 ---- } } } ! goto success; default: /* Possibly an attributes section. */ *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1963,1976 **** || hdr->sh_type == bed->obj_attrs_section_type) { if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! return FALSE; _bfd_elf_parse_attributes (abfd, hdr); ! return TRUE; } /* Check for any processor-specific section types. */ if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) ! return TRUE; if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) { --- 2047,2060 ---- || hdr->sh_type == bed->obj_attrs_section_type) { if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) ! goto fail; _bfd_elf_parse_attributes (abfd, hdr); ! goto success; } /* Check for any processor-specific section types. */ if (bed->elf_backend_section_from_shdr (abfd, hdr, name, shindex)) ! goto success; if (hdr->sh_type >= SHT_LOUSER && hdr->sh_type <= SHT_HIUSER) { *************** bfd_section_from_shdr (bfd *abfd, unsign *** 1982,1990 **** "specific section `%s' [0x%8x]"), abfd, name, hdr->sh_type); else ! /* Allow sections reserved for applications. */ ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); } else if (hdr->sh_type >= SHT_LOPROC && hdr->sh_type <= SHT_HIPROC) --- 2066,2077 ---- "specific section `%s' [0x%8x]"), abfd, name, hdr->sh_type); else ! { ! /* Allow sections reserved for applications. */ ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, ! shindex); ! goto success; ! } } else if (hdr->sh_type >= SHT_LOPROC && hdr->sh_type <= SHT_HIPROC) *************** bfd_section_from_shdr (bfd *abfd, unsign *** 2005,2012 **** "`%s' [0x%8x]"), abfd, name, hdr->sh_type); else ! /* Otherwise it should be processed. */ ! return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); } else /* FIXME: We should handle this section. */ --- 2092,2102 ---- "`%s' [0x%8x]"), abfd, name, hdr->sh_type); else ! { ! /* Otherwise it should be processed. */ ! ret = _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex); ! goto success; ! } } else /* FIXME: We should handle this section. */ *************** bfd_section_from_shdr (bfd *abfd, unsign *** 2014,2023 **** (_("%B: don't know how to handle section `%s' [0x%8x]"), abfd, name, hdr->sh_type); ! return FALSE; } ! return TRUE; } /* Return the local symbol specified by ABFD, R_SYMNDX. */ --- 2104,2123 ---- (_("%B: don't know how to handle section `%s' [0x%8x]"), abfd, name, hdr->sh_type); ! goto fail; } ! fail: ! ret = FALSE; ! success: ! if (sections_being_created && sections_being_created_abfd == abfd) ! sections_being_created [shindex] = FALSE; ! if (-- nesting == 0) ! { ! sections_being_created = NULL; ! sections_being_created_abfd = abfd; ! } ! return ret; } /* Return the local symbol specified by ABFD, R_SYMNDX. */ *************** elfcore_write_lwpstatus (bfd *abfd, *** 9296,9302 **** lwpstat.pr_lwpid = pid >> 16; lwpstat.pr_cursig = cursig; #if defined (HAVE_LWPSTATUS_T_PR_REG) ! memcpy (lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) #if !defined(gregs) memcpy (lwpstat.pr_context.uc_mcontext.gregs, --- 9396,9402 ---- lwpstat.pr_lwpid = pid >> 16; lwpstat.pr_cursig = cursig; #if defined (HAVE_LWPSTATUS_T_PR_REG) ! memcpy (&lwpstat.pr_reg, gregs, sizeof (lwpstat.pr_reg)); #elif defined (HAVE_LWPSTATUS_T_PR_CONTEXT) #if !defined(gregs) memcpy (lwpstat.pr_context.uc_mcontext.gregs, diff -cpr ../binutils-2.24.orig/bfd/ihex.c bfd/ihex.c *** ../binutils-2.24.orig/bfd/ihex.c 2014-10-31 11:50:20.143220890 +0000 --- bfd/ihex.c 2014-10-31 11:51:45.746721162 +0000 *************** ihex_scan (bfd *abfd) *** 322,328 **** { if (! ISHEX (buf[i])) { ! ihex_bad_byte (abfd, lineno, hdr[i], error); goto error_return; } } --- 322,328 ---- { if (! ISHEX (buf[i])) { ! ihex_bad_byte (abfd, lineno, buf[i], error); goto error_return; } } diff -cpr ../binutils-2.24.orig/bfd/peXXigen.c bfd/peXXigen.c *** ../binutils-2.24.orig/bfd/peXXigen.c 2014-10-31 11:50:20.149220928 +0000 --- bfd/peXXigen.c 2014-10-31 11:51:00.397462266 +0000 *************** _bfd_XXi_swap_aouthdr_in (bfd * abfd, *** 460,465 **** --- 460,476 ---- { int idx; + /* PR 17512: Corrupt PE binaries can cause seg-faults. */ + if (a->NumberOfRvaAndSizes > 16) + { + (*_bfd_error_handler) + (_("%B: aout header specifies an invalid number of data-directory entries: %d"), + abfd, a->NumberOfRvaAndSizes); + /* Paranoia: If the number is corrupt, then assume that the + actual entries themselves might be corrupt as well. */ + a->NumberOfRvaAndSizes = 0; + } + for (idx = 0; idx < a->NumberOfRvaAndSizes; idx++) { /* If data directory is empty, rva also should be 0. */ *************** pe_print_edata (bfd * abfd, void * vfile *** 1364,1370 **** bfd_size_type datasize = 0; bfd_size_type dataoff; bfd_size_type i; ! bfd_signed_vma adj; struct EDT_type { long export_flags; /* Reserved - should be zero. */ --- 1375,1381 ---- bfd_size_type datasize = 0; bfd_size_type dataoff; bfd_size_type i; ! bfd_vma adj; struct EDT_type { long export_flags; /* Reserved - should be zero. */ *************** pe_print_edata (bfd * abfd, void * vfile *** 1414,1419 **** --- 1425,1437 ---- _("\nThere is an export table, but the section containing it could not be found\n")); return TRUE; } + else if (!(section->flags & SEC_HAS_CONTENTS)) + { + fprintf (file, + _("\nThere is an export table in %s, but that section has no contents\n"), + section->name); + return TRUE; + } dataoff = addr - section->vma; datasize = extra->DataDirectory[PE_EXPORT_TABLE].Size; *************** pe_print_edata (bfd * abfd, void * vfile *** 1426,1431 **** --- 1444,1458 ---- } } + /* PR 17512: Handle corrupt PE binaries. */ + if (datasize < 36) + { + fprintf (file, + _("\nThere is an export table in %s, but it is too small (%d)\n"), + section->name, (int) datasize); + return TRUE; + } + fprintf (file, _("\nThere is an export table in %s at 0x%lx\n"), section->name, (unsigned long) addr); *************** pe_print_edata (bfd * abfd, void * vfile *** 1469,1476 **** fprintf (file, _("Name \t\t\t\t")); bfd_fprintf_vma (abfd, file, edt.name); ! fprintf (file, ! " %s\n", data + edt.name - adj); fprintf (file, _("Ordinal Base \t\t\t%ld\n"), edt.base); --- 1496,1506 ---- fprintf (file, _("Name \t\t\t\t")); bfd_fprintf_vma (abfd, file, edt.name); ! ! if ((edt.name >= adj) && (edt.name < adj + datasize)) ! fprintf (file, " %s\n", data + edt.name - adj); ! else ! fprintf (file, "(outside .edata section)\n"); fprintf (file, _("Ordinal Base \t\t\t%ld\n"), edt.base); *************** pe_print_edata (bfd * abfd, void * vfile *** 1516,1522 **** _("\nExport Address Table -- Ordinal Base %ld\n"), edt.base); ! for (i = 0; i < edt.num_functions; ++i) { bfd_vma eat_member = bfd_get_32 (abfd, data + edt.eat_addr + (i * 4) - adj); --- 1546,1557 ---- _("\nExport Address Table -- Ordinal Base %ld\n"), edt.base); ! /* PR 17512: Handle corrupt PE binaries. */ ! if (edt.eat_addr + (edt.num_functions * 4) - adj >= datasize) ! fprintf (file, _("\tInvalid Export Address Table rva (0x%lx) or entry count (0x%lx)\n"), ! (long) edt.eat_addr, ! (long) edt.num_functions); ! else for (i = 0; i < edt.num_functions; ++i) { bfd_vma eat_member = bfd_get_32 (abfd, data + edt.eat_addr + (i * 4) - adj); *************** pe_print_edata (bfd * abfd, void * vfile *** 1552,1558 **** fprintf (file, _("\n[Ordinal/Name Pointer] Table\n")); ! for (i = 0; i < edt.num_names; ++i) { bfd_vma name_ptr = bfd_get_32 (abfd, data + --- 1587,1602 ---- fprintf (file, _("\n[Ordinal/Name Pointer] Table\n")); ! /* PR 17512: Handle corrupt PE binaries. */ ! if (edt.npt_addr + (edt.num_names * 4) - adj >= datasize) ! fprintf (file, _("\tInvalid Name Pointer Table rva (0x%lx) or entry count (0x%lx)\n"), ! (long) edt.npt_addr, ! (long) edt.num_names); ! else if (edt.ot_addr + (edt.num_names * 2) - adj >= datasize) ! fprintf (file, _("\tInvalid Ordinal Table rva (0x%lx) or entry count (0x%lx)\n"), ! (long) edt.ot_addr, ! (long) edt.num_names); ! else for (i = 0; i < edt.num_names; ++i) { bfd_vma name_ptr = bfd_get_32 (abfd, data + diff -cpr ../binutils-2.24.orig/bfd/srec.c bfd/srec.c *** ../binutils-2.24.orig/bfd/srec.c 2014-10-31 11:50:20.144220896 +0000 --- bfd/srec.c 2014-10-31 11:50:55.808436025 +0000 *************** srec_bad_byte (bfd *abfd, *** 248,254 **** } else { ! char buf[10]; if (! ISPRINT (c)) sprintf (buf, "\\%03o", (unsigned int) c); --- 248,254 ---- } else { ! char buf[40]; if (! ISPRINT (c)) sprintf (buf, "\\%03o", (unsigned int) c); *************** srec_scan (bfd *abfd) *** 454,461 **** case 'S': { file_ptr pos; ! char hdr[3]; ! unsigned int bytes; bfd_vma address; bfd_byte *data; unsigned char check_sum; --- 454,461 ---- case 'S': { file_ptr pos; ! unsigned char hdr[3]; ! unsigned int bytes, min_bytes; bfd_vma address; bfd_byte *data; unsigned char check_sum; *************** srec_scan (bfd *abfd) *** 478,483 **** --- 478,496 ---- } check_sum = bytes = HEX (hdr + 1); + min_bytes = 3; + if (hdr[0] == '2' || hdr[0] == '8') + min_bytes = 4; + else if (hdr[0] == '3' || hdr[0] == '7') + min_bytes = 5; + if (bytes < min_bytes) + { + (*_bfd_error_handler) (_("%B:%d: byte count %d too small\n"), + abfd, lineno, bytes); + bfd_set_error (bfd_error_bad_value); + goto error_return; + } + if (bytes * 2 > bufsize) { if (buf != NULL)