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SEGV in tflite-xnnpack (id:002069,sig:11,src:023493,time:400607527,execs:824978403,op:havoc,rep:2)
Severity: medium CWE: CWE-119 Target: tflite-xnnpack Generated: 2026-02-27
Summary
SEGV in tflite-xnnpack (id:002069,sig:11,src:023493,time:400607527,execs:824978403,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(609 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_shift_left.cc:42:30: runtime error: load of null pointer of type 'const int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_shift_left.cc:42:30 in
AddressSanitizer:DEADLYSIGNAL
=================================================================
==4004371==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x61682b002e9a bp 0x7ffd98b31d90 sp 0x7ffd98b31d40 T0)
==4004371==The signal is caused by a READ memory access.
==4004371==Hint: address points to the zero page.
#0 0x61682b002e9a in TfLiteStatus tflite::ops::builtin::stablehlo_shift_left::(anonymous namespace)::EvalImpl<int>(TfLiteTensor const*, TfLiteTensor const*, TfLiteTensor*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_shift_left.cc:42:30
#1 0x61682b001517 in tflite::ops::builtin::stablehlo_shift_left::(anonymous namespace)::Eval(TfLiteContext*, TfLiteNode*) /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/kernels/stablehlo_shift_left.cc:84:12
#2 0x616829c7b064 in tflite::Subgraph::InvokeImpl() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1726:18
#3 0x616829c77ec0 in tflite::Subgraph::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/subgraph.cc:1619:17
#4 0x616829bbbbb6 in tflite::impl::Interpreter::Invoke() /home/lab/huntr/targets/tflite/tf-src/tensorflow/lite/core/interpreter.cc:243:3
#5 0x616829b3a749 in LLVMFuzzerTestOneInput /home/lab/huntr/harnesses/tflite/fuzz_tflite_xnnpack_v2.cpp:29:18
#6 0x616829b3980a in main (/home/lab/huntr/harnesses/tflite/fuzz_tflite_xnnpack_v2+0x9f880a) (BuildId: 379682ff8803bcfee7b5e3bcbfcfe3d55390c609)
#7 0x7fdb7cc2a1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#8 0x7fdb7cc2a28a in __libc_start_main csu/../csu/libc-start.c:360:3
#9 0x616829a5ad04 in _start (/home/lab
Impact
Memory corruption vulnerability reachable by processing a malformed tflite-xnnpack file. An attacker could craft a malicious file and distribute it to cause denial of service or potentially leak sensitive heap data.
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