$ ./jsish/jsish poc.js
==106201==ERROR: AddressSanitizer: heap-use-after-free on address 0x60c000018678 at pc 0x56468deff5a0 bp 0x7fff9a37c2a0 sp 0x7fff9a37c290
READ of size 8 at 0x60c000018678 thread T0
#0 0x56468deff59f in SortSubCmd src/jsiArray.c:958#1 0x7fb68d0b0311 (/lib/x86_64-linux-gnu/libc.so.6+0x42311)#2 0x7fb68d0b027d (/lib/x86_64-linux-gnu/libc.so.6+0x4227d)#3 0x7fb68d0b027d (/lib/x86_64-linux-gnu/libc.so.6+0x4227d)#4 0x7fb68d0b06b5 in qsort_r (/lib/x86_64-linux-gnu/libc.so.6+0x426b5)#5 0x56468df02611 in jsi_ArraySortCmd src/jsiArray.c:1065#6 0x56468decf818 in jsi_FuncCallSub src/jsiProto.c:244#7 0x56468e19971a in jsiFunctionSubCall src/jsiEval.c:796#8 0x56468e19971a in jsiEvalFunction src/jsiEval.c:837#9 0x56468e19971a in jsiEvalCodeSub src/jsiEval.c:1264#10 0x56468e1ad15e in jsi_evalcode src/jsiEval.c:2204#11 0x56468ded0834 in jsi_FuncCallSub src/jsiProto.c:220#12 0x56468de4cfec in jsi_FunctionInvoke src/jsiFunc.c:777#13 0x56468de4cfec in Jsi_FunctionInvoke src/jsiFunc.c:789#14 0x56468df0dc0b in jsi_ArrayFindSubCmd src/jsiArray.c:576#15 0x56468df0dc0b in jsi_ArrayFindIndexCmd src/jsiArray.c:666#16 0x56468decf818 in jsi_FuncCallSub src/jsiProto.c:244#17 0x56468e19971a in jsiFunctionSubCall src/jsiEval.c:796#18 0x56468e19971a in jsiEvalFunction src/jsiEval.c:837#19 0x56468e19971a in jsiEvalCodeSub src/jsiEval.c:1264#20 0x56468e1ad15e in jsi_evalcode src/jsiEval.c:2204#21 0x56468e1b1274 in jsi_evalStrFile src/jsiEval.c:2665#22 0x56468dea066a in Jsi_Main src/jsiInterp.c:936#23 0x56468e6a503a in jsi_main src/main.c:47#24 0x7fb68d08fbf6 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21bf6)#25 0x56468de34969 in _start (/usr/local/bin/jsish+0xe8969)
0x60c000018678 is located 56 bytes inside of 128-byte region [0x60c000018640,0x60c0000186c0)
freed by thread T0 here:
#0 0x7fb68dcfef30 in realloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdef30)#1 0x56468dea5972 in Jsi_Realloc src/jsiUtils.c:47
previously allocated by thread T0 here:
#0 0x7fb68dcfef30 in realloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdef30)#1 0x56468dea5972 in Jsi_Realloc src/jsiUtils.c:47
SUMMARY: AddressSanitizer: heap-use-after-free src/jsiArray.c:958 in SortSubCmd
Shadow bytes around the buggy address:
0x0c187fffb070: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
0x0c187fffb080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c187fffb090: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c187fffb0a0: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
0x0c187fffb0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c187fffb0c0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd[fd]
0x0c187fffb0d0: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
0x0c187fffb0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c187fffb0f0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
0x0c187fffb100: 00 00 00 00 00 00 00 00 fa fa fa fa fa fa fa fa
0x0c187fffb110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==106201==ABORTING
The text was updated successfully, but these errors were encountered:
Jsish revision
Commit: 9fa798e
Version: v3.5.0
Build platform
Ubuntu 18.04.5 LTS (Linux 5.4.0-44-generic x86_64)
Build steps
Test case
Execution steps & Output
$ ./jsish/jsish poc.js ==106201==ERROR: AddressSanitizer: heap-use-after-free on address 0x60c000018678 at pc 0x56468deff5a0 bp 0x7fff9a37c2a0 sp 0x7fff9a37c290 READ of size 8 at 0x60c000018678 thread T0 #0 0x56468deff59f in SortSubCmd src/jsiArray.c:958 #1 0x7fb68d0b0311 (/lib/x86_64-linux-gnu/libc.so.6+0x42311) #2 0x7fb68d0b027d (/lib/x86_64-linux-gnu/libc.so.6+0x4227d) #3 0x7fb68d0b027d (/lib/x86_64-linux-gnu/libc.so.6+0x4227d) #4 0x7fb68d0b06b5 in qsort_r (/lib/x86_64-linux-gnu/libc.so.6+0x426b5) #5 0x56468df02611 in jsi_ArraySortCmd src/jsiArray.c:1065 #6 0x56468decf818 in jsi_FuncCallSub src/jsiProto.c:244 #7 0x56468e19971a in jsiFunctionSubCall src/jsiEval.c:796 #8 0x56468e19971a in jsiEvalFunction src/jsiEval.c:837 #9 0x56468e19971a in jsiEvalCodeSub src/jsiEval.c:1264 #10 0x56468e1ad15e in jsi_evalcode src/jsiEval.c:2204 #11 0x56468ded0834 in jsi_FuncCallSub src/jsiProto.c:220 #12 0x56468de4cfec in jsi_FunctionInvoke src/jsiFunc.c:777 #13 0x56468de4cfec in Jsi_FunctionInvoke src/jsiFunc.c:789 #14 0x56468df0dc0b in jsi_ArrayFindSubCmd src/jsiArray.c:576 #15 0x56468df0dc0b in jsi_ArrayFindIndexCmd src/jsiArray.c:666 #16 0x56468decf818 in jsi_FuncCallSub src/jsiProto.c:244 #17 0x56468e19971a in jsiFunctionSubCall src/jsiEval.c:796 #18 0x56468e19971a in jsiEvalFunction src/jsiEval.c:837 #19 0x56468e19971a in jsiEvalCodeSub src/jsiEval.c:1264 #20 0x56468e1ad15e in jsi_evalcode src/jsiEval.c:2204 #21 0x56468e1b1274 in jsi_evalStrFile src/jsiEval.c:2665 #22 0x56468dea066a in Jsi_Main src/jsiInterp.c:936 #23 0x56468e6a503a in jsi_main src/main.c:47 #24 0x7fb68d08fbf6 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21bf6) #25 0x56468de34969 in _start (/usr/local/bin/jsish+0xe8969) 0x60c000018678 is located 56 bytes inside of 128-byte region [0x60c000018640,0x60c0000186c0) freed by thread T0 here: #0 0x7fb68dcfef30 in realloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdef30) #1 0x56468dea5972 in Jsi_Realloc src/jsiUtils.c:47 previously allocated by thread T0 here: #0 0x7fb68dcfef30 in realloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdef30) #1 0x56468dea5972 in Jsi_Realloc src/jsiUtils.c:47 SUMMARY: AddressSanitizer: heap-use-after-free src/jsiArray.c:958 in SortSubCmd Shadow bytes around the buggy address: 0x0c187fffb070: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa 0x0c187fffb080: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c187fffb090: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd 0x0c187fffb0a0: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa 0x0c187fffb0b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0c187fffb0c0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd[fd] 0x0c187fffb0d0: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa 0x0c187fffb0e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0c187fffb0f0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00 0x0c187fffb100: 00 00 00 00 00 00 00 00 fa fa fa fa fa fa fa fa 0x0c187fffb110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==106201==ABORTINGThe text was updated successfully, but these errors were encountered: