Rammadaeus/poc-segv-in-tflite-invoke-id000704sig06src037833time31189256

SEGV in tflite-invoke (id:000704,sig:06,src:037833,time:31189256,execs:9613437,op:colorization,rep:11)

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

Summary

SEGV in tflite-invoke (id:000704,sig:06,src:037833,time:31189256,execs:9613437,op:colorization,rep:11). 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 (484 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.
WARNING: Attempting to use a delegate that only supports static-sized tensors with a graph that has dynamic-sized tensors (tensor#2 is a dynamic-sized tensor).
/home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_elementwise.h:107:5: runtime error: store to null pointer of type 'double'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_elementwise.h:107:5 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==3987460==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5962c4da10bb bp 0x7ffefc548a70 sp 0x7ffefc5489c0 T0)
==3987460==The signal is caused by a WRITE memory access.
==3987460==Hint: address points to the zero page.
    #0 0x5962c4da10bb in TfLiteStatus tflite::ops::builtin::EvalWithType<(tflite::ops::builtin::ComputationType)0, double>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_elementwise.h:107:75
    #1 0x5962c4d9d60e in TfLiteStatus tflite::ops::builtin::ElementwiseEval<(tflite::ops::builtin::ComputationType)0>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_elementwise.h:129:14
    #2 0x5962c3bd0e84 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
    #3 0x5962c3bcdce0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1619:17
    #4 0x5962c3b119d6 in tflite::impl::Interpreter::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/interpreter.cc:243:3
    #5 0x5962c3a9065e in LLVMFuzzerTestOneInput /home/lab/huntr/harnesses/tflite/fuzz_tflite_invoke_v2.cpp:19:18
    #6 0x5962c3a8f80a in main (/home/lab/huntr/harnesses/tflite/fuzz_tflite_invoke_v2+0x9f880a) (BuildId: 4f58f306b08a16ba0764b768e045054c72b71547)
    #7 0x776f8882a1c9 in __libc_start_call_main csu/../s

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.