darlinghq/darling-gdb
1
0
Fork 0
mirror of https://github.com/darlinghq/darling-gdb.git synced 2025-04-01 11:41:34 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

More fixes for memory problems uncovered by file fuzzers.

Browse Source 
PR binutils/17512
	* coffcode.h (handle_COMDAT): Replace abort with BFD_ASSERT.
	Replace another abort with an error message.
	(coff_slurp_line_table): Add more range checking.
	* peXXigen.c (pe_print_debugdata): Add range checking.
This commit is contained in:
Nick Clifton 2014-11-05 17:57:54 +00:00
parent 74e1a04b97
commit a6f921c877
3 changed files with 28 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
bfd/ChangeLog
View File

@ -1,3 +1,11 @@
2014-11-04 Nick Clifton <nickc@redhat.com>
PR binutils/17512
* coffcode.h (handle_COMDAT): Replace abort with BFD_ASSERT.
Replace another abort with an error message.
(coff_slurp_line_table): Add more range checking.
* peXXigen.c (pe_print_debugdata): Add range checking.
2014-11-05 James Cowgill <james.cowgill@imgtec.com>
* elfxx-mips.c (_bfd_mips_elf_finish_dynamic_sections): Fix segfault

21
bfd/coffcode.h
View File

@ -928,12 +928,7 @@ handle_COMDAT (bfd * abfd,
bfd_coff_swap_sym_in (abfd, esym, & isym);
if (sizeof (internal_s->s_name) > SYMNMLEN)
{
/* This case implies that the matching
symbol name will be in the string table. */
abort ();
}
BFD_ASSERT (sizeof (internal_s->s_name) <= SYMNMLEN);
if (isym.n_scnum == section->target_index)
{
@ -964,8 +959,12 @@ handle_COMDAT (bfd * abfd,
/* All 3 branches use this. */
symname = _bfd_coff_internal_syment_name (abfd, &isym, buf);
/* PR 17512 file: 078-11867-0.004 */
if (symname == NULL)
abort ();
{
_bfd_error_handler (_("%B: unable to load COMDAT section name"), abfd);
break;
}
switch (seen_state)
{
@ -4578,6 +4577,13 @@ coff_slurp_line_table (bfd *abfd, asection *asect)
sym = ((coff_symbol_type *)
((symndx + obj_raw_syments (abfd))
->u.syment._n._n_n._n_zeroes));
/* PR 17512 file: 078-10659-0.004 */
if (sym < obj_symbols (abfd)
|| sym > obj_symbols (abfd)
+ obj_raw_syment_count (abfd) * sizeof (coff_symbol_type))
sym = NULL;
cache_ptr->u.sym = (asymbol *) sym;
if (sym == NULL)
continue;
@ -4599,6 +4605,7 @@ coff_slurp_line_table (bfd *abfd, asection *asect)
cache_ptr++;
src++;
}
cache_ptr->line_number = 0;
bfd_release (abfd, native_lineno);

6
bfd/peXXigen.c
View File

@ -2573,6 +2573,12 @@ pe_print_debugdata (bfd * abfd, void * vfile)
dataoff = addr - section->vma;
if (size > (section->size - dataoff))
{
fprintf (file, _("The debug data size field in the data directory is too big for the section"));
return FALSE;
}
fprintf (file,
_("Type Size Rva Offset\n"));