SEGV Xs/sources/xsFunction.c:546:18 In ... - GitHub

Skip to content Dismiss alert {{ message }} Moddable-OpenSource / moddable Public

• Notifications You must be signed in to change notification settings
• Fork 252
• Star 1.5k

• Code
• Issues 55
• Pull requests 25
• Discussions
• Actions
• Projects
• Security
• Insights

Additional navigation options

SEGV xs/sources/xsFunction.c:546:18 in fx_Function_prototype_hasInstance #767New issueCopy linkNew issueCopy linkClosedClosedSEGV xs/sources/xsFunction.c:546:18 in fx_Function_prototype_hasInstance#767Copy link

Description

hope-flyopened on Jan 7, 2022Issue body actions

Moddable-XS revision

Commit: 2f93df29

Version: 11.5.0 32 4

Build environment

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

Build steps

cd ~/moddable/xs/makefiles/lin make -f xst.mk

Test case

poc.js function JSEtest() { }; JSEtest.prototype = Function.prototype; var obj = new JSEtest; try { obj.apply(); $ERROR('###'); } catch (e) { if (!(e instanceof new JSEtest)) { $ERROR('###'); } }

Execution & Output

$ ./moddable/build/bin/lin/debug/xst poc.js AddressSanitizer:DEADLYSIGNAL ================================================================= ==16775==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x00000069f0da bp 0x7ffc5bbdaf10 sp 0x7ffc5bbdac70 T0) ==16775==The signal is caused by a READ memory access. ==16775==Hint: address points to the zero page. #0 0x69f0d9 in fx_Function_prototype_hasInstance /root/moddable/xs/sources/xsFunction.c:546:18 #1 0x84f3ca in fxRunID /root/moddable/xs/sources/xsRun.c:842:7 #2 0x8c98c0 in fxRunInstanceOf /root/moddable/xs/sources/xsRun.c:4396:2 #3 0x8bac67 in fxRunID /root/moddable/xs/sources/xsRun.c:3877:4 #4 0x8ceaac in fxRunScript /root/moddable/xs/sources/xsRun.c:4766:4 #5 0xad3231 in fxRunProgramFile /root/moddable/xs/tools/xst.c:1387:2 #6 0xacfa83 in main /root/moddable/xs/tools/xst.c:281:8 #7 0x7f729fce6bf6 in __libc_start_main /build/glibc-S9d2JN/glibc-2.27/csu/../csu/libc-start.c:310 #8 0x42ddc9 in _start (/usr/local/bin/xst+0x42ddc9) AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /root/moddable/xs/sources/xsFunction.c:546:18 in fx_Function_prototype_hasInstance ==16775==ABORTING

Credits: Found by OWL337 team.

Reactions are currently unavailable

Metadata

Metadata

Assignees

No one assigned

Labels

No labelsNo labels

Type

No type

Projects

No projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions

You can’t perform that action at this time.