v@DESKTOP-DPIU403:~/jse/mjs$ ./mjs-bin poc5.js
AddressSanitizer:DEADLYSIGNAL
=================================================================
==12423==ERROR: AddressSanitizer: SEGV on unknown address 0x558f1032d018 (pc 0x558efe682570 bp 0x7fffb1707070 sp 0x7fffb1706fa0 T0)
==12423==The signal is caused by a READ memory access.
#0 0x558efe682570 in getprop_builtin_foreign /home/v/jse/mjs/mjs.c:8472:31
#1 0x558efe67db5f in getprop_builtin /home/v/jse/mjs/mjs.c:8509:17
#2 0x558efe623b43 in mjs_execute /home/v/jse/mjs/mjs.c:8661:14
#3 0x558efe61b4d4 in mjs_exec_internal /home/v/jse/mjs/mjs.c:9044:5
#4 0x558efe61bcb3 in mjs_exec_file /home/v/jse/mjs/mjs.c:9067:11
#5 0x558efe62d5e8 in main /home/v/jse/mjs/mjs.c:11423:11
#6 0x7fd916269d8f in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#7 0x7fd916269e3f in __libc_start_main csu/../csu/libc-start.c:392:3
#8 0x558efe4ff3d4 in _start (/home/v/jse/mjs/mjs-bin+0x283d4)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/v/jse/mjs/mjs.c:8472:31 in getprop_builtin_foreign
==12423==ABORTING
s2o
Environment
Ubuntu 22.04.3 LTS
Affected Version
MJS 2.20.0
Step to reproduce
Contents of PoCfile
ASAN Report