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authorNick Clifton <nickc@redhat.com>2015-01-21 17:37:23 +0000
committerNick Clifton <nickc@redhat.com>2015-01-21 17:37:23 +0000
commit86eafac0aad7edbc1ccea6daf53480a36339250a (patch)
tree380943f3951e65b5a0c9968691828a424e0857c7 /bfd/peXXigen.c
parentffbc46469f5fa1368251acd65da418775ab1a2ce (diff)
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Fix memory access violations triggered by running strip on fuzzed binaries.
PR binutils/17512 * coffcode.h (coff_set_arch_mach_hook): Check return value from bfd_malloc. (coff_slurp_line_table): Return FALSE if the line number information was corrupt. (coff_slurp_symbol_table): Return FALSE if the symbol information was corrupt. * mach-o.c (bfd_mach_o_bfd_copy_private_header_data): Always initialise the fields of the dyld_info structure. (bfd_mach_o_build_exec_seg_command): Replace assertion with an error message and a return value. (bfd_mach_o_layout_commands): Change the function to boolean. Return FALSE if the function fails. (bfd_mach_o_build_commands): Fail if bfd_mach_o_layout_commands fails. (bfd_mach_o_read_command): Fail if an unrecognised command is encountered. * peXXigen.c (_bfd_XXi_swap_aouthdr_in): Set bfd_error if the read fails. (slurp_symtab): Check the return from bfd_malloc. (_bfd_XX_bfd_copy_private_bfd_data_common): Fail if the copy encountered an error. (_bfd_XXi_final_link_postscript): Fail if a section could not be copied. * peicode.h (pe_bfd_object_p): Fail if the header could not be swapped in. * tekhex.c (first_phase): Fail if the section is too big. * versados.c (struct esdid): Add content_size field. (process_otr): Use and check the new field. (versados_get_section_contents): Check that the section exists and that the requested data is available. PR binutils/17512 * addr2line.c (main): Call bfd_set_error_program_name. * ar.c (main): Likewise. * coffdump.c (main): Likewise. * cxxfilt.c (main): Likewise. * dlltool.c (main): Likewise. * nlmconv.c (main): Likewise. * nm.c (main): Likewise. * objdump.c (main): Likewise. * size.c (main): Likewise. * srconv.c (main): Likewise. * strings.c (main): Likewise. * sysdump.c (main): Likewise. * windmc.c (main): Likewise. * windres.c (main): Likewise. * objcopy.c (main): Likewise. (copy_relocations_in_section): Check for relocs without associated symbol pointers.
Diffstat (limited to 'bfd/peXXigen.c')
-rw-r--r--bfd/peXXigen.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/bfd/peXXigen.c b/bfd/peXXigen.c
index 0abe609..122ddf1 100644
--- a/bfd/peXXigen.c
+++ b/bfd/peXXigen.c
@@ -526,6 +526,8 @@ _bfd_XXi_swap_aouthdr_in (bfd * abfd,
(*_bfd_error_handler)
(_("%B: aout header specifies an invalid number of data-directory entries: %d"),
abfd, a->NumberOfRvaAndSizes);
+ bfd_set_error (bfd_error_bad_value);
+
/* Paranoia: If the number is corrupt, then assume that the
actual entries themselves might be corrupt as well. */
a->NumberOfRvaAndSizes = 0;
@@ -2007,7 +2009,11 @@ slurp_symtab (bfd *abfd, sym_cache *psc)
if (storage < 0)
return NULL;
if (storage)
- sy = (asymbol **) bfd_malloc (storage);
+ {
+ sy = (asymbol **) bfd_malloc (storage);
+ if (sy == NULL)
+ return NULL;
+ }
psc->symcount = bfd_canonicalize_symtab (abfd, sy);
if (psc->symcount < 0)
@@ -2963,8 +2969,16 @@ _bfd_XX_bfd_copy_private_bfd_data_common (bfd * ibfd, bfd * obfd)
}
if (!bfd_set_section_contents (obfd, section, data, 0, section->size))
- _bfd_error_handler (_("Failed to update file offsets in debug directory"));
+ {
+ _bfd_error_handler (_("Failed to update file offsets in debug directory"));
+ return FALSE;
+ }
}
+ else if (section)
+ {
+ _bfd_error_handler (_("%A: Failed to read debug data section"), obfd);
+ return FALSE;
+ }
}
return TRUE;
@@ -4475,6 +4489,8 @@ _bfd_XXi_final_link_postscript (bfd * abfd, struct coff_final_link_info *pfinfo)
}
free (tmp_data);
}
+ else
+ result = FALSE;
}
}
#endif