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=6937bb54a9c3ddc7ba330bc18af76f8dbe856ac3
commit 6937bb54a9c3ddc7ba330bc18af76f8dbe856ac3
Author: Nick Clifton <ni...@redhat.com>
Date: Tue Nov 18 14:40:05 2014 +0000
More fixes for illegal memory accesses exposed by fuzzed binaries.
PR binutils/17512
* peXXIgen.c (pe_print_pdata): Fail if the section's virtual size
is larger than its real size.
(rsrc_print_section): Fix off-by-one error checking for overflow.
* pei-x86_64.c (pex64_bfd_print_pdata): Handle empty unwind
sections.
* dwarf.c (get_encoded_value): Warn and return if the encoded
value is more than 64-bits long.
(SAFE_BYTE_GET): Do not attempt to read more than 64-bits.
(process_extended_line_op): Add more range checks.
(decode_location_expression): Use the return value from
display_block. Add more range checks.
(read_debug_line_header): Add range check.
(display_debug_lines_raw): Add range checks.
(display_debug_frames): Silently skip multiple zero terminators.
Add range checks.
(process_cu_tu_index): Check for non-existant or empty sections.
Use SAFE_BYTE_GET instead of byte_get.
-----------------------------------------------------------------------
Summary of changes:
bfd/ChangeLog | 9 +++
bfd/peXXigen.c | 10 +++-
bfd/pei-x86_64.c | 7 ++
binutils/ChangeLog | 16 +++++
binutils/dwarf.c | 162 +++++++++++++++++++++++++++++++++++++++------------
5 files changed, 165 insertions(+), 39 deletions(-)
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