https://sourceware.org/bugzilla/show_bug.cgi?id=17512
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f64e188b58f4aab4cbd03aa6e9fc1aa602546e26
commit f64e188b58f4aab4cbd03aa6e9fc1aa602546e26
Author: Nick Clifton <ni...@redhat.com>
Date: Tue Dec 9 12:42:18 2014 +0000
More fixes for memory access violations triggered by fuzzed binaries.
PR binutils/17512
* objdump.c (display_any_bfd): Avoid infinite loop closing and
opening the same archive again and again.
* archive64.c (bfd_elf64_archive_slurp_armap): Add range checks.
* libbfd.c (safe_read_leb128): New function.
* libbfd-in.h (safe_read_leb128): Add prototype.
* libbfd.h: Regenerate.
* elf-attrs.c (_bfd_elf_parse_attributes): Use safe_read_leb128.
Check for an over-long subsection length.
* elf.c (elf_parse_notes): Check that the namedata is long enough
for the string comparison that is about to be performed.
(elf_read_notes): Zero-terminate the note buffer.
-----------------------------------------------------------------------
Summary of changes:
bfd/ChangeLog | 13 ++++++++++++
bfd/archive64.c | 11 +++++++++-
bfd/elf-attrs.c | 15 ++++++++-----
bfd/elf.c | 53 ++++++++++++++++++++++++++++-----------------------
bfd/libbfd-in.h | 2 +
bfd/libbfd.c | 39 ++++++++++++++++++++++++++++++++++++++
bfd/libbfd.h | 2 +
binutils/ChangeLog | 6 +++++
binutils/objdump.c | 10 ++++++++-
9 files changed, 119 insertions(+), 32 deletions(-)
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