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Fixes illegal memory access errors and arithmetic overflows when running strip on fuzzed binaries.

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PR binutils/17512
	* coffcode.h (coff_compute_section_file_positions): Report
	negative page sizes.
	* elf.c (elf_fake_sections): Handle excessive alignmment powers.
	(assign_file_positions_for_non_load_sections): Replace assertion
	with an error message.
	(rewrite_elf_program_header): Handle excessive segment
	alignments.
	* mach-o.c (bfd_mach_o_read_section_32): Likewise.
	(bfd_mach_o_read_section_64): Likewise.
	* peXXigen.c (_bfd_XX_bfd_copy_private_bfd_data_common): Use %B to
	print a bfd name, not %A.
This commit is contained in:
Nick Clifton
2015-02-26 21:32:04 +00:00
parent 9beb7c4e1d
commit c86934ceee
5 changed files with 67 additions and 6 deletions
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9
bfd/coffcode.h
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@ -3170,6 +3170,15 @@ coff_compute_section_file_positions (bfd * abfd)
This repairs 'ld -r' for arm-wince-pe target. */
if (page_size == 0)
page_size = 1;
/* PR 17512: file: 0ac816d3. */
if (page_size < 0)
{
bfd_set_error (bfd_error_file_too_big);
(*_bfd_error_handler)
(_("%B: page size is too large (0x%x)"), abfd, page_size);
return FALSE;
}
}
else
page_size = PE_DEF_FILE_ALIGNMENT;