[Bug report] Some SEGV bugs in functions of liming

[Yhcrown]

Hi, developers of libming:

Recently, I tested some binaries instrumented with ASAN in liming. Unfortunately, some function (all in decompileAction and caused by getString or getName) incurred crashes about address error(heap-buffer-overflow and Segment Fault):

• Segment fault in 14 functions: decompileArithmeticOp, decompileIMPLEMENTS, newVar_N(decompileNEWOBJECT), decompileNEWMETHOD, decompileNEWOBJECT, decompileGETMEMBER, decompileGETVARIABLE, decompilePUSHPARAM(decompileGETURL2), decompileIMPLEMENTS, newVar_N2(decompileINITOBJECT), decompileCAST, decompileRETURN, decompilePUSHPARAM, decompileSETTARGET.
• Heap buffer overflow in 2 functions: decompileGETMEMBER, newVar_N.

There are all the error messages and crash inputs in my GitHub repository:
https://github.com/Yhcrown/fuzzing-crashes/tree/main/validated/libming

Verification steps：

git clone https://github.com/libming/libming.git
cd libming
export CC=clang CXX=clang++
./autogen.sh
CFLAGS+="-fsanitize=address" LDFLAGS+="-fsanitize=address" ./configure --disable-shared
make -j
cd util
./binary ./crash-input

Environment:
Ubuntu 22.04 LTS
Linux lab-pro 4.15.0-147-generic
gcc (Ubuntu 11.2.0-19ubuntu1) 11.2.0
Ubuntu clang version 14.0.6

Thanks & Best regards !