diff options
| author | Alan Modra <amodra@gmail.com> | 2021-10-06 10:17:29 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2021-10-06 11:24:29 +1030 |
| commit | 0a6041ce9383338fa62acb207683780faaa8b42c (patch) | |
| tree | 1996d2e58fac46ae1ed3ea5366571d7c9223f88e /bfd/pdp11.c | |
| parent | 55e3926e79937da55da3eaad3b15b4c099071976 (diff) | |
PR28403, null pointer dereference in disassemble_bytes
Indexing of symbol and howto arrays wasn't checked in aout targets.
PR 28403
* aout-ns32k.c (MY (reloc_howto)): Sanity check howto_table index.
Make r_index unsigned.
(MY_swap_std_reloc_in): Make r_index unsigned.
* aoutx.h (MOVE_ADDRESS): Sanity check symbol r_index.
(aout_link_input_section_std): Make r_index unsigned.
(aout_link_input_section_ext): Likewise.
* i386lynx.c (MOVE_ADDRESS): Sanity check symbol r_index.
(swap_ext_reloc_in, swap_std_reloc_in): Make r_index unsigned.
* pdp11.c (MOVE_ADDRESS): Sanity check symbol r_index.
Diffstat (limited to 'bfd/pdp11.c')
| -rw-r--r-- | bfd/pdp11.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/bfd/pdp11.c b/bfd/pdp11.c index 2c9fe0ae56..6429b43be1 100644 --- a/bfd/pdp11.c +++ b/bfd/pdp11.c @@ -1862,7 +1862,8 @@ pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr) if (r_extern) \ { \ /* Undefined symbol. */ \ - cache_ptr->sym_ptr_ptr = symbols + r_index; \ + if (r_index < bfd_get_symcount (abfd)) \ + cache_ptr->sym_ptr_ptr = symbols + r_index; \ cache_ptr->addend = ad; \ } \ else \ |