gdb and binutils branch master updated. 601a03ba3d521989584a1f8abd5678040e0218cf

[amodra at sourceware dot org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=601a03ba3d521989584a1f8abd5678040e0218cf

commit 601a03ba3d521989584a1f8abd5678040e0218cf
Author: Alan Modra <amodra@gmail.com>
Date:   Wed Nov 19 19:10:49 2014 +1030

    _bfd_elf_slurp_version_tables tidy
    
    The internal verref buffer is allocated with bfd_zalloc, based on a
    count given in headers.  If the headers are broken/fuzzed and contain
    an enormous count the alloc can result in OOM.  If we first read the
    external verrefs (into a buffer that isn't zeroed on allocation) then
    the read provides a sanity check on the headers.
    
    Also prints an error for version info that fails other sanity checks.
    
    	* elf.c (_bfd_elf_slurp_version_tables): Delay allocation of
    	internal verref buffer.  Error for zero sh_info.  Print errors.
    	Check for zero vd_ndx.  Use bfd_zalloc for vd_auxptr buffer.

-----------------------------------------------------------------------

Summary of changes:
 bfd/ChangeLog |    6 ++++
 bfd/elf.c     |   89 +++++++++++++++++++++++++++++---------------------------
 2 files changed, 52 insertions(+), 43 deletions(-)


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