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bfd/mach-o: avoid a crash when num == 0 in reloc.

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bfd/
	* mach-o.c (bfd_mach_o_canonicalize_one_reloc): Avoid to crash
	when num == 0.
This commit is contained in:
Tristan Gingold 2014-04-01 14:34:04 +02:00
parent c275b681a5
commit 23d7293976
2 changed files with 6 additions and 2 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2014-04-01 Tristan Gingold <gingold@adacore.com>
* mach-o.c (bfd_mach_o_canonicalize_one_reloc): Avoid to crash
when num == 0.
2014-03-27 Yury Gribov <y.gribov@samsung.com> 2014-03-27 Yury Gribov <y.gribov@samsung.com>
Pavel Fedin <p.fedin@samsung.com> Pavel Fedin <p.fedin@samsung.com>

3
bfd/mach-o.c
View File

@ -1075,7 +1075,7 @@ bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
/* An external symbol number. */ /* An external symbol number. */
sym = syms + num; sym = syms + num;
} }
else if (num == 0x00ffffff) else if (num == 0x00ffffff || num == 0)
{ {
/* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
is generic code, we don't know wether this is really a PAIR. is generic code, we don't know wether this is really a PAIR.
@ -1087,7 +1087,6 @@ bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
else else
{ {
/* A section number. */ /* A section number. */
BFD_ASSERT (num != 0);
BFD_ASSERT (num <= mdata->nsects); BFD_ASSERT (num <= mdata->nsects);
sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr; sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;