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More fixes for memory access violations exposed by fuzzed binaries. 

PR binutils/17512
	* archive.c (do_slurp_bsd_armap): Return if the parsed_size is
	zero.
	(bfd_slurp_armap): Zero terminate the name.
	(bfd_generic_stat_arch_elt): If there is no header, fail.
	* elf32-arc.c (arc_info_to_howto_rel): Replace BFD_ASSERT with
	error message.
	* elf32-avr.c (avr_info_to_howto_rela): Likewise.
	* elf32-cr16c.c (elf_cr16c_info_to_howto_rel): Likewise.
	* elf32-cris.c (cris_info_to_howto_rela): Likewise.
	* elf32-d10v.c (d10v_info_to_howto_rel): Likewise.
	* elf32-d30v.c (d30v_info_to_howto_rel): Likewise.
	* elf32-dlx.c (dlx_rtype_to_howto): Likewise.
	* elf32-epiphany.c (epiphany_info_to_howto_rela): Likewise.
	* elf32-fr30.c (fr30_info_to_howto_rela): Likewise.
	* elf32-frv.c (frv_info_to_howto_rela): Likewise.
	* elf32-i960.c (elf32_i960_info_to_howto_rel): Likewise.
	* elf32-ip2k.c (ip2k_info_to_howto_rela): Likewise.
	* elf32-iq2000.c (iq2000_info_to_howto_rela): Likewise.
	* elf32-lm32.c (lm32_info_to_howto_rela): Likewise.
	* elf32-m32c.c (m32c_info_to_howto_rela): Likewise.
	* elf32-m32r.c (m32r_info_to_howto_rel): Likewise.
	* elf32-m68hc11.c (m68hc11_info_to_howto_rel): Likewise.
	* elf32-m68hc12.c (m68hc11_info_to_howto_rel): Likewise.
	* elf32-mep.c (mep_info_to_howto_rela): Likewise.
	* elf32-metag.c (metag_info_to_howto_rela): Likewise.
	* elf32-moxie.c (moxie_info_to_howto_rela): Likewise.
	* elf32-msp430.c (msp430_info_to_howto_rela): Likewise.
	* elf32-mt.c (mt_info_to_howto_rela): Likewise.
	* elf32-nds32.c (nds32_info_to_howto_rel): Likewise.
	* elf32-or1k.c (or1k_info_to_howto_rela): Likewise.
	* elf32-rl78.c (rl78_info_to_howto_rela): Likewise.
	* elf32-rx.c (rx_info_to_howto_rela): Likewise.
	* elf32-v850.c (v850_elf_info_to_howto_rel): Likewise.
	* elf32-visium.c (visium_info_to_howto_rela): Likewise.
	* elf32-xgate.c (xgate_info_to_howto_rel): Likewise.
	* elf32-xtensa.c (elf_xtensa_info_to_howto_rela): Likewise.
	* elf64-mmix.c (mmix_info_to_howto_rela): Likewise.
	* elf64-x86-64.c (elf_x86_64_reloc_type_lookup): Likewise.
	* elfnn-aarch64.c (elfNN_aarch64_bfd_reloc_from_type): Likewise.
	* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Add range
	checking of reloc symbol index.
	* mach-o.c (bfd_mach_o_canonicalize_one_reloc): If no symbols have
	been provided then set the reloc's symbol to undefined.
	* reloc.c (bfd_generic_get_relocated_section_contents): Add range
	checking of the reloc to be applied.
	* versados.c (process_otr): Add more range checks.
	(versados_canonicalize_reloc): If the section is unknown, set the
	symbol to undefined.
	* vms-alpha.c (_bfd_vms_slurp_eisd): Add range checks.
	(alpha_vms_object_p): Likewise.
This commit is contained in:
Nick Clifton 2014-12-22 20:59:00 +00:00
parent e30880c2ee
commit 5860e3f883
41 changed files with 278 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
bfd/ChangeLog
View File

@ -1,3 +1,57 @@
2014-12-22 Nick Clifton <nickc@redhat.com>
PR binutils/17512
* archive.c (do_slurp_bsd_armap): Return if the parsed_size is
zero.
(bfd_slurp_armap): Zero terminate the name.
(bfd_generic_stat_arch_elt): If there is no header, fail.
* elf32-arc.c (arc_info_to_howto_rel): Replace BFD_ASSERT with
error message.
* elf32-avr.c (avr_info_to_howto_rela): Likewise.
* elf32-cr16c.c (elf_cr16c_info_to_howto_rel): Likewise.
* elf32-cris.c (cris_info_to_howto_rela): Likewise.
* elf32-d10v.c (d10v_info_to_howto_rel): Likewise.
* elf32-d30v.c (d30v_info_to_howto_rel): Likewise.
* elf32-dlx.c (dlx_rtype_to_howto): Likewise.
* elf32-epiphany.c (epiphany_info_to_howto_rela): Likewise.
* elf32-fr30.c (fr30_info_to_howto_rela): Likewise.
* elf32-frv.c (frv_info_to_howto_rela): Likewise.
* elf32-i960.c (elf32_i960_info_to_howto_rel): Likewise.
* elf32-ip2k.c (ip2k_info_to_howto_rela): Likewise.
* elf32-iq2000.c (iq2000_info_to_howto_rela): Likewise.
* elf32-lm32.c (lm32_info_to_howto_rela): Likewise.
* elf32-m32c.c (m32c_info_to_howto_rela): Likewise.
* elf32-m32r.c (m32r_info_to_howto_rel): Likewise.
* elf32-m68hc11.c (m68hc11_info_to_howto_rel): Likewise.
* elf32-m68hc12.c (m68hc11_info_to_howto_rel): Likewise.
* elf32-mep.c (mep_info_to_howto_rela): Likewise.
* elf32-metag.c (metag_info_to_howto_rela): Likewise.
* elf32-moxie.c (moxie_info_to_howto_rela): Likewise.
* elf32-msp430.c (msp430_info_to_howto_rela): Likewise.
* elf32-mt.c (mt_info_to_howto_rela): Likewise.
* elf32-nds32.c (nds32_info_to_howto_rel): Likewise.
* elf32-or1k.c (or1k_info_to_howto_rela): Likewise.
* elf32-rl78.c (rl78_info_to_howto_rela): Likewise.
* elf32-rx.c (rx_info_to_howto_rela): Likewise.
* elf32-v850.c (v850_elf_info_to_howto_rel): Likewise.
* elf32-visium.c (visium_info_to_howto_rela): Likewise.
* elf32-xgate.c (xgate_info_to_howto_rel): Likewise.
* elf32-xtensa.c (elf_xtensa_info_to_howto_rela): Likewise.
* elf64-mmix.c (mmix_info_to_howto_rela): Likewise.
* elf64-x86-64.c (elf_x86_64_reloc_type_lookup): Likewise.
* elfnn-aarch64.c (elfNN_aarch64_bfd_reloc_from_type): Likewise.
* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Add range
checking of reloc symbol index.
* mach-o.c (bfd_mach_o_canonicalize_one_reloc): If no symbols have
been provided then set the reloc's symbol to undefined.
* reloc.c (bfd_generic_get_relocated_section_contents): Add range
checking of the reloc to be applied.
* versados.c (process_otr): Add more range checks.
(versados_canonicalize_reloc): If the section is unknown, set the
symbol to undefined.
* vms-alpha.c (_bfd_vms_slurp_eisd): Add range checks.
(alpha_vms_object_p): Likewise.
2014-12-18 Richard Henderson <rth@redhat.com>
* elf32-ppc.c (ELF_COMMONPAGESIZE): Set to 64k.

9
bfd/archive.c
View File

@ -902,6 +902,9 @@ do_slurp_bsd_armap (bfd *abfd)
return FALSE;
parsed_size = mapdata->parsed_size;
free (mapdata);
/* PR 17512: file: 883ff754. */
if (parsed_size == 0)
return FALSE;
raw_armap = (bfd_byte *) bfd_zalloc (abfd, parsed_size);
if (raw_armap == NULL)
@ -917,7 +920,6 @@ do_slurp_bsd_armap (bfd *abfd)
}
ardata->symdef_count = H_GET_32 (abfd, raw_armap) / BSD_SYMDEF_SIZE;
if (ardata->symdef_count * BSD_SYMDEF_SIZE >
parsed_size - BSD_SYMDEF_COUNT_SIZE)
{
@ -1138,6 +1140,7 @@ bfd_slurp_armap (bfd *abfd)
return FALSE;
if (bfd_seek (abfd, -(file_ptr) (sizeof (hdr) + 20), SEEK_CUR) != 0)
return FALSE;
extname[20] = 0;
if (CONST_STRNEQ (extname, "__.SYMDEF SORTED")
|| CONST_STRNEQ (extname, "__.SYMDEF"))
return do_slurp_bsd_armap (abfd);
@ -1971,7 +1974,9 @@ bfd_generic_stat_arch_elt (bfd *abfd, struct stat *buf)
}
hdr = arch_hdr (abfd);
/* PR 17512: file: 3d9e9fe9. */
if (hdr == NULL)
return -1;
#define foo(arelt, stelt, size) \
buf->stelt = strtol (hdr->arelt, &aloser, size); \
if (aloser == hdr->arelt) \

6
bfd/elf32-arc.c
View File

@ -172,7 +172,11 @@ arc_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_ARC_max);
if (r_type >= (unsigned int) R_ARC_max)
{
_bfd_error_handler (_("%A: invalid ARC reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_arc_howto_table[r_type];
}

6
bfd/elf32-avr.c
View File

@ -859,7 +859,11 @@ avr_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_AVR_max);
if (r_type >= (unsigned int) R_AVR_max)
{
_bfd_error_handler (_("%A: invalid AVR reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_avr_howto_table[r_type];
}

6
bfd/elf32-cr16c.c
View File

@ -180,7 +180,11 @@ elf_cr16c_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
{
unsigned int r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) RINDEX_16C_MAX);
if (r_type >= RINDEX_16C_MAX)
{
_bfd_error_handler (_("%A; invalid CR16C reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_howto_table[r_type];
}

6
bfd/elf32-cris.c
View File

@ -461,7 +461,11 @@ cris_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
enum elf_cris_reloc_type r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
if (r_type >= R_CRIS_max)
{
_bfd_error_handler (_("%A: invalid CRIS reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & cris_elf_howto_table [r_type];
}

6
bfd/elf32-d10v.c
View File

@ -228,7 +228,11 @@ d10v_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_D10V_max);
if (r_type >= (unsigned int) R_D10V_max)
{
_bfd_error_handler (_("%A: invalid D10V reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_d10v_howto_table[r_type];
}

12
bfd/elf32-d30v.c
View File

@ -516,7 +516,11 @@ d30v_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_D30V_max);
if (r_type >= (unsigned int) R_D30V_max)
{
_bfd_error_handler (_("%A: invalid D30V reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_d30v_howto_table[r_type];
}
@ -530,7 +534,11 @@ d30v_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_D30V_max);
if (r_type >= (unsigned int) R_D30V_max)
{
_bfd_error_handler (_("%A: invalid D30V reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_d30v_howto_table[r_type];
}

6
bfd/elf32-dlx.c
View File

@ -546,7 +546,11 @@ dlx_rtype_to_howto (unsigned int r_type)
case R_DLX_RELOC_16_LO:
return & elf_dlx_reloc_16_lo;
default:
BFD_ASSERT (r_type < (unsigned int) R_DLX_max);
if (r_type >= (unsigned int) R_DLX_max)
{
_bfd_error_handler (_("Invalid DLX reloc number: %d"), r_type);
r_type = 0;
}
return & dlx_elf_howto_table[r_type];
}
}

5
bfd/elf32-epiphany.c
View File

@ -370,6 +370,11 @@ epiphany_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= (unsigned int) R_EPIPHANY_max)
{
_bfd_error_handler (_("%A: invalid Epiphany reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & epiphany_elf_howto_table [r_type];
}

6
bfd/elf32-fr30.c
View File

@ -375,7 +375,11 @@ fr30_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_FR30_max);
if (r_type >= (unsigned int) R_FR30_max)
{
_bfd_error_handler (_("%A: invalid FR30 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & fr30_elf_howto_table [r_type];
}

5
bfd/elf32-frv.c
View File

@ -2557,6 +2557,11 @@ frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
break;
default:
if (r_type >= (unsigned int) R_FRV_max)
{
_bfd_error_handler (_("%A: invalid FRV reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & elf32_frv_howto_table [r_type];
break;
}

8
bfd/elf32-i960.c
View File

@ -132,7 +132,13 @@ elf32_i960_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
enum elf_i960_reloc_type type;
type = (enum elf_i960_reloc_type) ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (type < R_960_max);
/* PR 17521: file: 9609b8d6. */
if (type >= R_960_max)
{
_bfd_error_handler (_("%A; invalid i960 reloc number: %d"), abfd, type);
type = 0;
}
cache_ptr->howto = &elf_howto_table[(int) type];
}

5
bfd/elf32-ip2k.c
View File

@ -1239,6 +1239,11 @@ ip2k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= (unsigned int) R_IP2K_max)
{
_bfd_error_handler (_("%A: invalid IP2K reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & ip2k_elf_howto_table [r_type];
}

5
bfd/elf32-iq2000.c
View File

@ -435,6 +435,11 @@ iq2000_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
break;
default:
if (r_type >= (unsigned int) R_IQ2000_max)
{
_bfd_error_handler (_("%A: invalid IQ2000 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & iq2000_elf_howto_table [r_type];
break;
}

6
bfd/elf32-lm32.c
View File

@ -588,7 +588,11 @@ lm32_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_LM32_max);
if (r_type >= (unsigned int) R_LM32_max)
{
_bfd_error_handler (_("%A: invalid LM32 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &lm32_elf_howto_table[r_type];
}

6
bfd/elf32-m32c.c
View File

@ -297,7 +297,11 @@ m32c_info_to_howto_rela
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_M32C_max);
if (r_type >= (unsigned int) R_M32C_max)
{
_bfd_error_handler (_("%A: invalid M32C reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & m32c_elf_howto_table [r_type];
}

6
bfd/elf32-m32r.c
View File

@ -1280,7 +1280,11 @@ m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
{
_bfd_error_handler (_("%A: invalid M32R reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &m32r_elf_howto_table[r_type];
}

6
bfd/elf32-m68hc11.c
View File

@ -384,7 +384,11 @@ m68hc11_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_M68HC11_max);
if (r_type >= (unsigned int) R_M68HC11_max)
{
_bfd_error_handler (_("%A: invalid M68HC11 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_m68hc11_howto_table[r_type];
}

6
bfd/elf32-m68hc12.c
View File

@ -504,7 +504,11 @@ m68hc11_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_M68HC11_max);
if (r_type >= (unsigned int) R_M68HC11_max)
{
_bfd_error_handler (_("%A: invalid M68HC12 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_m68hc11_howto_table[r_type];
}

5
bfd/elf32-mep.c
View File

@ -400,6 +400,11 @@ mep_info_to_howto_rela
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= R_MEP_max)
{
_bfd_error_handler (_("%A: invalid MEP reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & mep_elf_howto_table [r_type];
}

6
bfd/elf32-metag.c
View File

@ -896,7 +896,11 @@ metag_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_METAG_MAX);
if (r_type >= (unsigned int) R_METAG_MAX)
{
_bfd_error_handler (_("%A: invalid METAG reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & elf_metag_howto_table [r_type];
}

6
bfd/elf32-moxie.c
View File

@ -131,7 +131,11 @@ moxie_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_MOXIE_max);
if (r_type >= (unsigned int) R_MOXIE_max)
{
_bfd_error_handler (_("%A: invalid Moxie reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & moxie_elf_howto_table [r_type];
}

12
bfd/elf32-msp430.c
View File

@ -617,12 +617,20 @@ msp430_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
if (uses_msp430x_relocs (abfd))
{
BFD_ASSERT (r_type < (unsigned int) R_MSP430x_max);
if (r_type >= (unsigned int) R_MSP430x_max)
{
_bfd_error_handler (_("%A: invalid MSP430X reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = elf_msp430x_howto_table + r_type;
return;
}
BFD_ASSERT (r_type < (unsigned int) R_MSP430_max);
if (r_type >= (unsigned int) R_MSP430_max)
{
_bfd_error_handler (_("%A: invalid MSP430 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_msp430_howto_table[r_type];
}

5
bfd/elf32-mt.c
View File

@ -236,6 +236,11 @@ mt_info_to_howto_rela
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= (unsigned int) R_MT_max)
{
_bfd_error_handler (_("%A: invalid MT reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & mt_elf_howto_table [r_type];
}

6
bfd/elf32-nds32.c
View File

@ -2965,7 +2965,11 @@ nds32_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
enum elf_nds32_reloc_type r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (ELF32_R_TYPE (dst->r_info) <= R_NDS32_GNU_VTENTRY);
if (r_type > R_NDS32_GNU_VTENTRY)
{
_bfd_error_handler (_("%A: invalid NDS32 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = bfd_elf32_bfd_reloc_type_table_lookup (r_type);
}

6
bfd/elf32-or1k.c
View File

@ -738,7 +738,11 @@ or1k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_OR1K_max);
if (r_type >= (unsigned int) R_OR1K_max)
{
_bfd_error_handler (_("%A: invalid OR1K reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = & or1k_elf_howto_table[r_type];
}

6
bfd/elf32-rl78.c
View File

@ -276,7 +276,11 @@ rl78_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_RL78_max);
if (r_type >= (unsigned int) R_RL78_max)
{
_bfd_error_handler (_("%A: invalid RL78 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = rl78_elf_howto_table + r_type;
}

6
bfd/elf32-rx.c
View File

@ -307,7 +307,11 @@ rx_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_RX_max);
if (r_type >= (unsigned int) R_RX_max)
{
_bfd_error_handler (_("%A: invalid RX reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = rx_elf_howto_table + r_type;
}

6
bfd/elf32-v850.c
View File

@ -1896,7 +1896,11 @@ v850_elf_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_V850_max);
if (r_type >= (unsigned int) R_V850_max)
{
_bfd_error_handler (_("%A: invalid V850 reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &v850_elf_howto_table[r_type];
}

5
bfd/elf32-visium.c
View File

@ -501,6 +501,11 @@ visium_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
break;
default:
if (r_type >= (unsigned int) R_VISIUM_max)
{
_bfd_error_handler (_("%A: invalid Visium reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &visium_elf_howto_table[r_type];
break;
}

6
bfd/elf32-xgate.c
View File

@ -422,7 +422,11 @@ xgate_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT(r_type < (unsigned int) R_XGATE_max);
if (r_type >= (unsigned int) R_XGATE_max)
{
_bfd_error_handler (_("%A: invalid XGate reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_xgate_howto_table[r_type];
}

6
bfd/elf32-xtensa.c
View File

@ -479,7 +479,11 @@ elf_xtensa_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
{
unsigned int r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_XTENSA_max);
if (r_type >= (unsigned int) R_XTENSA_max)
{
_bfd_error_handler (_("%A: invalid XTENSA reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_howto_table[r_type];
}

6
bfd/elf64-mmix.c
View File

@ -1259,7 +1259,11 @@ mmix_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
unsigned int r_type;
r_type = ELF64_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_MMIX_max);
if (r_type >= (unsigned int) R_MMIX_max)
{
_bfd_error_handler (_("%A: invalid MMIX reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_mmix_howto_table[r_type];
}

4
bfd/elf64-sparc.c
View File

@ -97,7 +97,9 @@ elf64_sparc_slurp_one_reloc_table (bfd *abfd, asection *asect,
else
relent->address = rela.r_offset - asect->vma;
if (ELF64_R_SYM (rela.r_info) == STN_UNDEF)
if (ELF64_R_SYM (rela.r_info) == STN_UNDEF
/* PR 17512: file: 996185f8. */
|| ELF64_R_SYM (rela.r_info) > bfd_get_symcount (abfd))
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
else
{

2
bfd/elf64-x86-64.c
View File

@ -302,7 +302,7 @@ elf_x86_64_reloc_type_lookup (bfd *abfd,
return elf_x86_64_rtype_to_howto (abfd,
x86_64_reloc_map[i].elf_reloc_val);
}
return 0;
return NULL;
}
static reloc_howto_type *

8
bfd/elfnn-aarch64.c
View File

@ -1431,6 +1431,14 @@ elfNN_aarch64_bfd_reloc_from_type (unsigned int r_type)
if (r_type == R_AARCH64_NONE || r_type == R_AARCH64_NULL)
return BFD_RELOC_AARCH64_NONE;
/* PR 17512: file: b371e70a. */
if (r_type >= R_AARCH64_end)
{
_bfd_error_handler (_("Invalid AArch64 reloc number: %d"), r_type);
bfd_set_error (bfd_error_bad_value);
return BFD_RELOC_AARCH64_NONE;
}
return BFD_RELOC_AARCH64_RELOC_START + offsets[r_type];
}

2
bfd/mach-o.c
View File

@ -1352,6 +1352,8 @@ bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
/* PR 17512: file: 8396-1185-0.004. */
if (bfd_get_symcount (abfd) > 0 && num > bfd_get_symcount (abfd))
sym = bfd_und_section_ptr->symbol_ptr_ptr;
else if (syms == NULL)
sym = bfd_und_section_ptr->symbol_ptr_ptr;
else
/* An external symbol number. */
sym = syms + num;

4
bfd/reloc.c
View File

@ -7623,6 +7623,10 @@ bfd_generic_get_relocated_section_contents (bfd *abfd,
(*parent)->howto = &none_howto;
r = bfd_reloc_ok;
}
/* PR 17512: file: c146ab8b. */
else if ((*parent)->address * bfd_octets_per_byte (abfd)
>= bfd_get_section_size (input_section))
r = bfd_reloc_outofrange;
else
r = bfd_perform_relocation (input_bfd,
*parent,

28
bfd/versados.c
View File

@ -373,10 +373,17 @@ process_otr (bfd *abfd, struct ext_otr *otr, int pass)
| (otr->map[3] << 0);
struct esdid *esdid = &EDATA (abfd, otr->esdid - 1);
unsigned char *contents = esdid->contents;
unsigned char *contents;
bfd_boolean need_contents = FALSE;
unsigned int dst_idx = esdid->pc;
unsigned int dst_idx;
/* PR 17512: file: ac7da425. */
if (otr->esdid == 0)
return;
contents = esdid->contents;
dst_idx = esdid->pc;
for (shift = ((unsigned long) 1 << 31); shift && srcp < endp; shift >>= 1)
{
if (bits & shift)
@ -399,7 +406,7 @@ process_otr (bfd *abfd, struct ext_otr *otr, int pass)
if (pass == 1)
need_contents = TRUE;
else if (contents)
else if (contents && dst_idx < esdid->section->size - sizeinwords * 2)
for (j = 0; j < sizeinwords * 2; j++)
{
contents[dst_idx + (sizeinwords * 2) - j - 1] = val;
@ -421,10 +428,13 @@ process_otr (bfd *abfd, struct ext_otr *otr, int pass)
}
else
{
arelent *n =
EDATA (abfd, otr->esdid - 1).section->relocation + rn;
n->address = dst_idx;
arelent *n;
/* PR 17512: file: 54f733e0. */
if (EDATA (abfd, otr->esdid - 1).section == NULL)
continue;
n = EDATA (abfd, otr->esdid - 1).section->relocation + rn;
n->address = dst_idx;
n->sym_ptr_ptr = (asymbol **) (size_t) id;
n->addend = 0;
n->howto = versados_howto_table + ((j & 1) * 2) + (sizeinwords - 1);
@ -798,7 +808,11 @@ versados_canonicalize_reloc (bfd *abfd,
/* Section relative thing. */
struct esdid *e = &EDATA (abfd, esdid - 1);
src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
/* PR 17512: file:cd92277c. */
if (e->section)
src[count].sym_ptr_ptr = e->section->symbol_ptr_ptr;
else
src[count].sym_ptr_ptr = bfd_und_section_ptr->symbol_ptr_ptr;
}
/* PR 17512: file:3757-2936-0.004. */
else if ((unsigned) (esdid - ES_BASE) >= bfd_get_symcount (abfd))

7
bfd/vms-alpha.c
View File

@ -521,9 +521,11 @@ _bfd_vms_slurp_eisd (bfd *abfd, unsigned int offset)
asection *section;
flagword bfd_flags;
/* PR 17512: file: 3d9e9fe9. */
if (offset >= PRIV (recrd.rec_size))
return FALSE;
eisd = (struct vms_eisd *)(PRIV (recrd.rec) + offset);
rec_size = bfd_getl32 (eisd->eisdsize);
if (rec_size == 0)
break;
@ -2527,6 +2529,9 @@ alpha_vms_object_p (bfd *abfd)
/* Reset the record pointer. */
PRIV (recrd.rec) = buf;
/* PR 17512: file: 7d7c57c2. */
if (PRIV (recrd.rec_size) < sizeof (struct vms_eihd))
goto error_ret;
vms_debug2 ((2, "file type is image\n"));
if (_bfd_vms_slurp_eihd (abfd, &eisd_offset, &eihs_offset) != TRUE)