[fuzzing result][fuzz_torch_jit_lite_interpreter] read-heap-buffer-overflow-far-from-bounds (size 4) in c10::IValue::IValue() (#110441)
Summary: This diff fixes a heap underflow found by fuzzing in torch/csrc/jit/runtime/vararg_functions.cpp
Test Plan:
CI and
```
arc lionhead crash reproduce 1753074381791061
```
doesn't crash anymore.
Differential Revision: D49537535
Pull Request resolved: https://github.com/pytorch/pytorch/pull/110441
Approved by: https://github.com/Skylion007