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COFF buffer overflow in mark_relocs 

* cofflink.c (mark_relocs): Exclude relocs with -1 r_symndx
	from marking sym_indices.
This commit is contained in:
Alan Modra 2016-07-15 17:02:00 +09:30
parent 50c1cbe189
commit 06ab6faf83
2 changed files with 7 additions and 1 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2016-07-15 Alan Modra <amodra@gmail.com>
* cofflink.c (mark_relocs): Exclude relocs with -1 r_symndx
from marking sym_indices.
2016-07-14 Maciej W. Rozycki <macro@imgtec.com>
* reloc.c (bfd_perform_relocation): Try the `howto' handler

3
bfd/cofflink.c
View File

@ -1398,7 +1398,8 @@ mark_relocs (struct coff_final_link_info *flaginfo, bfd *input_bfd)
in the relocation table. This will then be picked up in the
skip/don't-skip pass. */
for (; irel < irelend; irel++)
flaginfo->sym_indices[ irel->r_symndx ] = -1;
if ((unsigned long) irel->r_symndx < obj_raw_syment_count (input_bfd))
flaginfo->sym_indices[irel->r_symndx] = -1;
}
}