diff options
Diffstat (limited to 'bfd/mach-o.c')
| -rw-r--r-- | bfd/mach-o.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/bfd/mach-o.c b/bfd/mach-o.c index 5279343..664ff44 100644 --- a/bfd/mach-o.c +++ b/bfd/mach-o.c @@ -1407,17 +1407,27 @@ bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command) } long -bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, - asection *asect) +bfd_mach_o_get_reloc_upper_bound (bfd *abfd, asection *asect) { -#if SIZEOF_LONG == SIZEOF_INT - if (asect->reloc_count >= LONG_MAX / sizeof (arelent *)) + size_t count, raw; + + count = asect->reloc_count; + if (count >= LONG_MAX / sizeof (arelent *) + || _bfd_mul_overflow (count, BFD_MACH_O_RELENT_SIZE, &raw)) { bfd_set_error (bfd_error_file_too_big); return -1; } -#endif - return (asect->reloc_count + 1L) * sizeof (arelent *); + if (!bfd_write_p (abfd)) + { + ufile_ptr filesize = bfd_get_file_size (abfd); + if (filesize != 0 && raw > filesize) + { + bfd_set_error (bfd_error_file_truncated); + return -1; + } + } + return (count + 1) * sizeof (arelent *); } /* In addition to the need to byte-swap the symbol number, the bit positions |