| --- |
| language: |
| - en |
| license: mit |
| task_categories: |
| - text-generation |
| tags: |
| - assembly |
| - security |
| - compiler-bugs |
| - CISB |
| - program-repair |
| size_categories: |
| - n<1K |
| --- |
| |
| # CISB-O2: Compiler-Introduced Security Bugs at -O2 |
|
|
| ## Overview |
|
|
| This dataset collects the **unsafe** half of the **Compiler-Introduced Security Bugs |
| (CISB)** benchmark: each record is a CISB case compiled with LLVM/Clang-17 at **-O2**, |
| where the optimizer eliminated or bypassed a security check that is still present in |
| the **-O0** build. |
|
|
| Because the -O0 build is the safe variant and the -O2 build is the unsafe one, every |
| record here is unsafe by construction -- there is no `flag` column. The intended task is |
| **repair**: given the unsafe -O2 assembly and the verifier's failure output, produce a |
| corrected assembly that restores the security property without changing other behavior. |
|
|
| ## Dataset Structure |
|
|
| | Column | Description | |
| |--------|-------------| |
| | `task_name` | Task identifier, e.g. `b-4-var-0` | |
| | `source_code` | Original C source (`code.c`) | |
| | `x86_64` | x86-64 assembly at -O2 (**Intel syntax**, built with `-masm=intel`) | |
| | `aarch64_linux` | AArch64 assembly at -O2 | |
| | `riscv` | RISC-V RV64 (`rv64gc`/`lp64d`) assembly at -O2 | |
| | `run_output` | Combined stdout+stderr of the verifier harness (`test.c`) run against the x86-64 build | |
| | `test_c` | C source of the verifier harness (`test.c`) -- links against the assembly under test and reports its verdict via exit code | |
|
|
| ## Statistics |
|
|
| - **Total records**: 36 |
| - **Bug families**: 6 (`b-4`, `b-9`, `b-12`, `b-14`, `b-21`, `l-30`), 6 variants each |
|
|
| ## Security Oracle |
|
|
| The `test.c` harness reports its verdict through the process exit code: |
|
|
| - `0` -> **SAFE** (security check preserved) |
| - `1` -> **UNSAFE** (security check eliminated) -- the expected state for every record here |
| - `2` -> **HARNESS_ERROR** |
| - killed by signal -> **CRASH**; no exit in time -> **TIMEOUT** |
| |
| The `run_output` column captures what that harness printed while returning UNSAFE, so it |
| can be fed to a model as the failure description for a repair task. |
| |
| ## Usage |
| |
| ```python |
| from datasets import load_dataset |
| |
| ds = load_dataset("Akirayasha/cisb-O2", split="test") |
| |
| record = ds[0] |
| unsafe_asm = record["x86_64"] # assembly to repair |
| failure = record["run_output"] # why the verifier says it is unsafe |
| harness = record["test_c"] # verifier source, to rebuild/rerun it against a candidate |
| ``` |
| |
| ## Citation |
| |
| Part of the CISC-to-RISC transpilation research project at MBZUAI. |
| |
