# SEGV in tflite-invoke (id:000426,sig:06,src:035184,time:16910307,execs:3093164,op:colorization,rep:1)

**Severity:** medium
**CWE:** CWE-119
**Target:** tflite-invoke
**Generated:** 2026-02-27

## Summary

SEGV in tflite-invoke (id:000426,sig:06,src:035184,time:16910307,execs:3093164,op:colorization,rep:1). See ASAN output below for details.

## Reproduction

```bash
chmod +x reproduce.sh
./reproduce.sh
```

Or manually:
```bash
# Build target with ASAN
# Run: <target> poc.tflite
```

## PoC File

- `poc.tflite` (612 bytes)

## ASAN Output

```
/home/lab/huntr/targets/tflite/build-afl/cpuinfo/src/x86/linux/cpuinfo.c:87: note: parse_line defined here
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/build-afl/cpuinfo/src/linux/multiline.c:64:9 in 
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
ERROR: /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1062 tensor.data.raw != nullptr was not true.
/home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/tensor_slice_util.cc:53:22: runtime error: reference binding to null pointer of type 'const long'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/tensor_slice_util.cc:53:22 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==502061==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5ec3fb802bd4 bp 0x7ffeed8e4ff0 sp 0x7ffeed8e4f00 T0)
==502061==The signal is caused by a READ memory access.
==502061==Hint: address points to the zero page.
    #0 0x5ec3fb802bd4 in void std::__new_allocator<long>::construct<long, long const&>(long*, long const&) /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/new_allocator.h:191
    #1 0x5ec3fb802bd4 in void std::allocator_traits<std::allocator<long>>::construct<long, long const&>(std::allocator<long>&, long*, long const&) /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/alloc_traits.h:538:8
    #2 0x5ec3fb802bd4 in std::vector<long, std::allocator<long>>::push_back(long const&) /usr/lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/bits/stl_vector.h:1286:6
    #3 0x5ec3fb802bd4 in std::vector<long, std::allocator<long>> tflite::ops::builtin::ReadIndexVector<long>(TfLiteTensor const*, tflite::RuntimeShape const&, std::vector<long, std::allocator<long>> const&, long) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/tensor_slice_util.cc:53:12
    #4 0x5ec3fb615b2d in TfLiteStatus tflite::ops::builtin::stablehlo_gather::(anonymous namespace)::EvalWithTypes<long, unsigned long>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_gather.cc:187:9
    #5 0x5ec3fb615b2d in TfLiteStatus tflite::ops::builtin::stablehlo_gather::(anonymous namespace)::EvalWithIndexType<long>(TfLiteContext*, TfLiteNode*, TfLiteType, TfLiteType) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_gather.cc:250:14
    #6 0x5ec3fb5d2517 in tflite::ops::builtin::stablehlo_gather::Eval(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_gather.cc:277:12
    #7 0x5ec3fa3d2e84 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
    #8 0x5ec3fa3cfce0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1619:17
    #9 0x5ec3fa3139d6 in tflite::impl::Interpreter::Invoke(
```

## Impact

Memory corruption vulnerability reachable by processing a malformed tflite-invoke file.
An attacker could craft a malicious file and distribute it to cause denial of service
or potentially leak sensitive heap data.