https://sourceware.org/bugzilla/show_bug.cgi?id=17512
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a11652892c18324bf3abb8b25c01475e5a18632a
commit a11652892c18324bf3abb8b25c01475e5a18632a
Author: Nick Clifton <ni...@redhat.com>
Date: Wed Nov 26 14:11:23 2014 +0000
More fixes for memory access errors triggered by attemps to examine
corrupted binaries.
PR binutils/17512
* dwarf.c (display_block): Do nothing if the block starts after
the end of the buffer.
(read_and_display_attr_value): Add range checks.
(struct Frame_Chunk): Make the ncols and ra fields unsigned.
(frame_need_space): Test for an ncols of zero.
(read_cie): Fail if the augmentation data extends off the end of
the buffer.
(display_debug_frames): Add checks for read_cie failing. Add
range checks.
* coff-h8300.c (rtype2howto): Replace abort with returning a NULL
value.
* coff-h8500.c (rtype2howto): Likewise.
* coff-tic30.c (rtype2howto): Likewise.
* coff-z80.c (rtype2howto): Likewise.
* coff-z8k.c (rtype2howto): Likewise.
* coff-ia64.c (RTYPE2HOWTO): Always return a valid howto.
* coff-m68k.c (m68k_rtype2howto): Return a NULL howto if none
could be found.
* coff-mcore.c (RTYPE2HOWTO): Add range checking.
* coff-w65.c (rtype2howto): Likewise.
* coff-we32k.c (RTYPE2HOWTO): Likewise.
* pe-mips.c (RTYPE2HOWTO): Likewise.
* coff-x86_64.c (coff_amd64_reloc): Likewise. Replace abort with
an error return.
* coffcode.h (coff_slurp_reloc_table): Allow the rel parameter to
be unused.
* coffgen.c (make_a_section_from_file): Check the length of a
section name before testing to see if it is a debug section name.
(coff_object_p): Zero out any uninitialised bytes in the opt
header.
* ecoff.c (_bfd_ecoff_slurp_symbolic_info): Test for the raw
source being empty when there are values to be processed.
(_bfd_ecoff_slurp_symbol_table): Add range check.
* mach-o.c (bfd_mach_o_canonicalize_one_reloc): Likewise.
(bfd_mach_o_mangle_sections): Move test for too many sections to
before the allocation of the section table.
(bfd_mach_o_read_symtab_strtab): If the read fails, free the
memory and nullify the symbol pointer.
* reloc.c (bfd_generic_get_relocated_section_contents): Add
handling of a bfd_reloc_notsupported return value.
* versados.c (EDATA): Add range checking.
(get_record): Likewise.
(process_otr): Check for contents being available before updating
them.
(versados_canonicalize_reloc): Add range check.
-----------------------------------------------------------------------
Summary of changes:
bfd/ChangeLog | 40 +++++++++++++++++++++++
bfd/coff-h8300.c | 2 +-
bfd/coff-h8500.c | 2 +-
bfd/coff-ia64.c | 2 +-
bfd/coff-m68k.c | 1 +
bfd/coff-mcore.c | 16 +++++----
bfd/coff-tic30.c | 2 +-
bfd/coff-w65.c | 29 ++++++++++-------
bfd/coff-we32k.c | 9 ++++-
bfd/coff-x86_64.c | 13 +++++++-
bfd/coff-z80.c | 2 +-
bfd/coff-z8k.c | 2 +-
bfd/coffcode.h | 2 +-
bfd/coffgen.c | 7 +++-
bfd/ecoff.c | 8 ++++
bfd/mach-o.c | 26 +++++++++++----
bfd/pe-mips.c | 7 +++-
bfd/reloc.c | 9 +++++
bfd/versados.c | 45 ++++++++++++++++---------
binutils/ChangeLog | 13 +++++++
binutils/dwarf.c | 91 ++++++++++++++++++++++++++++++++++++++-------------
21 files changed, 250 insertions(+), 78 deletions(-)
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