Rammadaeus/poc-segv-in-tflite-invoke-id000428sig06src035184time16914941

SEGV in tflite-invoke (id:000428,sig:06,src:035184,time:16914941,execs:3093854,op:havoc,rep:2)

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

Summary

SEGV in tflite-invoke (id:000428,sig:06,src:035184,time:16914941,execs:3093854,op:havoc,rep:2). 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 (612 bytes)

ASAN Output

/home/lab/huntr/targets/tflite/build-afl/cpuinfo/src/linux/multiline.c:85:11: 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: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/stablehlo_gather.cc:216:5: runtime error: store to null pointer of type 'float'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_gather.cc:216:5 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==501789==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5f02de82231f bp 0x7ffe493d7650 sp 0x7ffe493d7480 T0)
==501789==The signal is caused by a WRITE memory access.
==501789==Hint: address points to the zero page.
    #0 0x5f02de82231f in TfLiteStatus tflite::ops::builtin::stablehlo_gather::(anonymous namespace)::EvalWithTypes<long, float>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_gather.cc:216:36
    #1 0x5f02de82231f 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:232:14
    #2 0x5f02de7e7517 in tflite::ops::builtin::stablehlo_gather::Eval(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_gather.cc:277:12
    #3 0x5f02dd5e7e84 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
    #4 0x5f02dd5e4ce0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1619:17
    #5 0x5f02dd5289d6 in tflite::impl::Interpreter::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/interpreter.cc:243:3
    #6 0x5f02dd4a765e in LLVMFuzzerTestOneInput /home/lab/huntr/harnesses/tflite/fuzz_tflite_invoke_v2.cpp:19:18
    #7 0x5f02dd4a680a in main (/home/lab/huntr/harnesses/tflite/fuzz_tflite_invoke_v2+0x9f880a) (BuildId: 4f58f306b08a16ba0764b768e045054c72b71547)
    #8 0x717

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.