gdb and binutils branch master updated. 53774b7e76dc5b3e8cc00d6f7a9d27e6c65830a9

[nickc at sourceware dot org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=53774b7e76dc5b3e8cc00d6f7a9d27e6c65830a9

commit 53774b7e76dc5b3e8cc00d6f7a9d27e6c65830a9
Author: Nick Clifton <nickc@redhat.com>
Date:   Mon Dec 8 17:51:46 2014 +0000

    More fixes for invalid memory accesses triggered by fuzzed binaries.
    
    	PR binutils/17531
    	* dwarf.c (display_debug_frames): Check for a negative
    	augmentation data length.
    	(display_gdb_index): Check for invalid offsets.
    	* elfcomm.c (process_archive_index_and_symbols): Check for an
    	index number that overflows when multiplied by the ar index size.
    	* readelf.c (dump_ia64_unwind): Add range checks.
    	(slurp_ia64_unwind_table): Change to a boolean function.  Add
    	range checks.
    	(process_version_sections): Add range checks.
    	(get_symbol_version_string): Add check for missing section
    	headers.

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

Summary of changes:
 binutils/ChangeLog |   15 +++++++++++
 binutils/dwarf.c   |   70 +++++++++++++++++++++++++++++++++++++++++++++++---
 binutils/elfcomm.c |    6 +++-
 binutils/readelf.c |   72 +++++++++++++++++++++++++++++++++++++++-------------
 4 files changed, 139 insertions(+), 24 deletions(-)


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