diff options
Diffstat (limited to 'disassembler_elf.cc')
| -rw-r--r-- | disassembler_elf.cc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/disassembler_elf.cc b/disassembler_elf.cc index ff3b085..2405374 100644 --- a/disassembler_elf.cc +++ b/disassembler_elf.cc @@ -208,8 +208,14 @@ bool DisassemblerElf<Traits>::ParseHeader() { // Skip empty sections. These don't affect |offset_bound|, and don't // contribute to RVA-offset mapping. - if (section->sh_size == 0) + if (section->sh_size == 0) { + // Skipping empty sections is only safe if the |sh_offset| is within the + // image. Fail if this is not true as the input is ill-formed. + if (section->sh_offset >= image_.size()) + return false; + continue; + } // Extract dimensions to 32-bit integers to facilitate conversion. Range of // values was ensured above when checking that the section is bounded. |