diff options
Diffstat (limited to 'src/long_mode')
| -rw-r--r-- | src/long_mode/mod.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/long_mode/mod.rs b/src/long_mode/mod.rs index 2f5fe5d..e79c8cb 100644 --- a/src/long_mode/mod.rs +++ b/src/long_mode/mod.rs @@ -5516,6 +5516,9 @@ fn read_instr<T: Iterator<Item=u8>>(decoder: &InstDecoder, mut bytes_iter: T, in match bytes_iter.next() { Some(b) => { length += 1; + if length > 15 { + return Err(DecodeError::TooLong); + } let record = OPCODES[b as usize]; if (b & 0xf0) == 0x40 { prefixes.rex_from(b); @@ -5649,6 +5652,9 @@ fn read_instr<T: Iterator<Item=u8>>(decoder: &InstDecoder, mut bytes_iter: T, in } instruction.prefixes = prefixes; read_operands(decoder, bytes_iter, instruction, record.1, &mut length)?; + if length > 15 { + return Err(DecodeError::TooLong); + } instruction.length = length; if decoder != &InstDecoder::default() { |