Rammadaeus/poc-segv-in-tflite-invoke-id000806sig06src038521time38287440

SEGV in tflite-invoke (id:000806,sig:06,src:038521,time:38287440,execs:12314310,op:havoc,rep:2)

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

Summary

SEGV in tflite-invoke (id:000806,sig:06,src:038521,time:38287440,execs:12314310,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 (1984 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/internal/reference/portable_tensor_utils.cc:62:3: runtime error: store to null pointer of type 'float'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/reference/portable_tensor_utils.cc:62:3 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==1304430==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5798bad0b85b bp 0x7ffebfc27dd0 sp 0x7ffebfc27d60 T0)
==1304430==The signal is caused by a WRITE memory access.
==1304430==Hint: address points to the zero page.
    #0 0x5798bad0b85b in tflite::tensor_utils::PortableSymmetricQuantizeFloats(float const*, int, signed char*, float, float, float*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/internal/reference/portable_tensor_utils.cc:62:19
    #1 0x5798b9b4f17c in TfLiteStatus tflite::ops::builtin::conv::EvalHybrid<(tflite::ops::builtin::conv::KernelType)2>(TfLiteContext*, TfLiteNode*, TfLiteConvParams*, tflite::ops::builtin::conv::OpData*, TfLiteTensor const*, TfLiteTensor const*, TfLiteTensor const*, TfLiteTensor*, TfLiteTensor*, TfLiteTensor*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/conv.cc:1147:7
    #2 0x5798b9b4430a in TfLiteStatus tflite::ops::builtin::conv::EvalImpl<(tflite::ops::builtin::conv::KernelType)2, (TfLiteType)1>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/conv.cc:1238:11
    #3 0x5798b990b1e1 in TfLiteStatus tflite::ops::builtin::conv::Eval<(tflite::ops::builtin::conv::KernelType)2>(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/conv.cc:1275:14
    #4 0x5798b9449e84 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
    #5 0x5798b9446ce0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow

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.