Rammadaeus/poc-segv-in-tflite-invoke-id000711sig06src038484time31487710

SEGV in tflite-invoke (id:000711,sig:06,src:038484,time:31487710,execs:9717218,op:colorization,rep:3)

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

Summary

SEGV in tflite-invoke (id:000711,sig:06,src:038484,time:31487710,execs:9717218,op:colorization,rep:3). See ASAN output below for details.

Reproduction

chmod +x reproduce.sh
./reproduce.sh

Or manually:

# Build target with ASAN
# Run: <target> poc.tflite

PoC File

• poc.tflite (668 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: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.h:248:79: runtime error: signed integer overflow: 67108881 * 16843010 cannot be represented in type 'int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/runtime_shape.h:248:79 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==3986636==ERROR: AddressSanitizer: SEGV on unknown address 0x7a1a769c408c (pc 0x7a1a1dda134d bp 0x7ffcd78c4e30 sp 0x7ffcd78c45e8 T0)
==3986636==The signal is caused by a READ memory access.
    #0 0x7a1a1dda134d in __memcpy_avx512_unaligned_erms string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:265
    #1 0x5fdaa5f19ff8 in __asan_memcpy (/home/lab/huntr/harnesses/tflite/fuzz_tflite_invoke_v2+0x9b5ff8) (BuildId: 4f58f306b08a16ba0764b768e045054c72b71547)
    #2 0x5fdaa71d9719 in tflite::SequentialTensorWriter<unsigned int>::WriteN(int, int) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/portable_tensor.h:130:5
    #3 0x5fdaa71d8ccc in void tflite::optimized_ops::Slice<unsigned int>(tflite::SliceParams const&, tflite::RuntimeShape const&, tflite::RuntimeShape const&, tflite::SequentialTensorWriter<unsigned int>*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/optimized/optimized_ops.h:4722:21
    #4 0x5fdaa71cda82 in void tflite::optimized_ops::Slice<unsigned int>(tflite::SliceParams const&, tflite::RuntimeShape const&, TfLiteTensor const*, tflite::RuntimeShape const&, TfLiteTensor*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/optimized/optimized_ops.h:4742:10
    #5 0x5fdaa71b7b2d in TfLiteStatus tflite::ops::builtin::slice::Eval<(tflite::ops::builtin::slice::KernelType)1>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/slice.cc:249:7
    #6 0x5fdaa609de84 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
    #7 0x5fdaa609ace0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1619:17
    #8 0x5fdaa5fde9d6 in tflite::impl

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.