diff options
| author | Nick Clifton <nickc@redhat.com> | 2014-12-09 12:42:18 +0000 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2014-12-09 12:42:18 +0000 |
| commit | f64e188b58f4aab4cbd03aa6e9fc1aa602546e26 (patch) | |
| tree | 46d8f90891842ce15eee893ce5489835e9e65a20 /bfd/libbfd.h | |
| parent | 137d1369ac054744d27f19e95aa8a739e6c0068d (diff) | |
| download | gdb-f64e188b58f4aab4cbd03aa6e9fc1aa602546e26.zip gdb-f64e188b58f4aab4cbd03aa6e9fc1aa602546e26.tar.gz gdb-f64e188b58f4aab4cbd03aa6e9fc1aa602546e26.tar.bz2 | |
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.
Diffstat (limited to 'bfd/libbfd.h')
| -rw-r--r-- | bfd/libbfd.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/bfd/libbfd.h b/bfd/libbfd.h index 14ee8c6..8687ece 100644 --- a/bfd/libbfd.h +++ b/bfd/libbfd.h @@ -844,6 +844,8 @@ extern void bfd_section_already_linked_table_traverse extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); +extern bfd_vma safe_read_leb128 (bfd *, bfd_byte *, unsigned int *, + bfd_boolean, const bfd_byte * const); /* Extracted from init.c. */ /* Extracted from libbfd.c. */ bfd_boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int); |