# SEGV in tflite-invoke (id:000802,sig:06,src:037388,time:37792568,execs:12131137,op:its,rep:1)

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

## Summary

SEGV in tflite-invoke (id:000802,sig:06,src:037388,time:37792568,execs:12131137,op:its,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` (644 bytes)

## ASAN Output

```
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/build-afl/cpuinfo/src/linux/multiline.c:85:11 in 
/home/lab/huntr/targets/tflite/build-afl/cpuinfo/src/linux/multiline.c:64:9: runtime error: call to function parse_line through pointer to incorrect function type 'bool (*)(const char *, const char *, void *, unsigned long)'
/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.
/home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/runtime_shape.cc:46:17: runtime error: signed integer overflow: 1920 * 1900544 cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/runtime_shape.cc:46:17 in 
/home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/reference/gather.h:102:45: runtime error: signed integer overflow: 1130 * 1900544 cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/reference/gather.h:102:45 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==1304879==ERROR: AddressSanitizer: SEGV on unknown address 0x79dc888822c0 (pc 0x79e1f1fa1377 bp 0x7ffec2492180 sp 0x7ffec2491938 T0)
==1304879==The signal is caused by a READ memory access.
    #0 0x79e1f1fa1377 in __memcpy_avx512_unaligned_erms string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:287
    #1 0x643197e83ff8 in __asan_memcpy (/home/lab/huntr/harnesses/tflite/fuzz_tflite_invoke_v2+0x9b5ff8) (BuildId: 4f58f306b08a16ba0764b768e045054c72b71547)
    #2 0x643198b0a134 in TfLiteStatus tflite::reference_ops::Gather<int, short>(tflite::GatherParams const&, tflite::RuntimeShape const&, int const*, tflite::RuntimeShape const&, short const*, tflite::RuntimeShape const&, int*, bool) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/reference/gather.h:109:9
    #3 0x643198aff5a7 in TfLiteStatus tflite::ops::builtin::gather::Gather<int, short>(TfLiteContext*, TfLiteGatherParams const&, TfLiteTensor const*, TfLiteTensor const*, TfLiteTensor*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/gather.cc:163:10
    #4 0x643198af7833 in tflite::ops::builtin::gather::EvalImpl(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/gather.cc:277:7
    #5 0x643198007e84 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
    #6 0x643198004ce0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1619:17
    #7 0x643197f489d6 in tflite::impl::Interpreter::
```

## 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.