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XCOFF64 uninitialised read

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Like git commit 67338173a4.

	* coff64-rs6000.c (xcoff64_slurp_armap): Ensure size is large
	enough to read number of symbols.
This commit is contained in:
Alan Modra 2020-03-22 20:29:16 +10:30
parent 57cb32b3c3
commit c15a8f173e
2 changed files with 7 additions and 2 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2020-03-22 Alan Modra <amodra@gmail.com>
* coff64-rs6000.c (xcoff64_slurp_armap): Ensure size is large
enough to read number of symbols.
2020-03-20 H.J. Lu <hongjiu.lu@intel.com>
* configure.ac (HAVE_EXECUTABLE_SUFFIX): Removed.

4
bfd/coff64-rs6000.c
View file

@ -1933,9 +1933,9 @@ xcoff64_slurp_armap (bfd *abfd)
return FALSE;
sz = bfd_scan_vma (hdr.size, (const char **) NULL, 10);
if (sz == (bfd_size_type) -1)
if (sz + 1 < 9)
{
bfd_set_error (bfd_error_no_memory);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}