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[Bug binutils/17531] readelf -a crashes on fuzzed samples


From: cvs-commit at gcc dot gnu.org
Subject: [Bug binutils/17531] readelf -a crashes on fuzzed samples
Date: Mon, 01 Dec 2014 11:21:08 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=17531

--- Comment #47 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
       via  591f7597d447d8d038d6d8e24a706d1d5e32eba1 (commit)
      from  9e8cd6df3ca295986b2c295b6cfa5ceadd410bb4 (commit)

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=591f7597d447d8d038d6d8e24a706d1d5e32eba1

commit 591f7597d447d8d038d6d8e24a706d1d5e32eba1
Author: Nick Clifton <address@hidden>
Date:   Mon Dec 1 11:19:39 2014 +0000

    Add checks for memory access violations exposed by fuzzed archives.

        PR binutils/17531
        * dwarf.c (process_cu_tu_index): Check for an out of range row
        index.
        * elfcomm.c (adjust_relative_path): Change name_len parameter to
        an unsigned long.  Check for path length overflow.
        (process_archive_index_and_symbols): Check for invalid header
        size.
        (setup_archive): Add checks for invalid archives.
        (get_archive_member_name): Add range checks.
        * elfcomm.h (adjust_relative_path): Update prototyoe.
        * readelf.c (process_archive): Add range checks.

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

Summary of changes:
 binutils/ChangeLog |   14 +++++++++++++
 binutils/dwarf.c   |    8 +++++++
 binutils/elfcomm.c |   55 +++++++++++++++++++++++++++++++++++++++++++++++----
 binutils/elfcomm.h |    2 +-
 binutils/readelf.c |   11 +++++----
 5 files changed, 79 insertions(+), 11 deletions(-)

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