chakra: Crash in int JsUtil::BaseDictionary<void*, unsigned int, Memory::RecyclerNonLeafAllocator

2019-06-26T14:59:00
ID OSSFUZZ-15507
Type ossfuzz
Reporter Google
Modified 2020-12-01T04:28:36

Description

Detailed report: https://oss-fuzz.com/testcase?key=5727599193489408

Project: chakra Fuzzer: js_fuzzer Job Type: asan_chakra Platform Id: linux

Crash Type: UNKNOWN READ Crash Address: 0x00008fff8800 Crash State: int JsUtil::BaseDictionary<void, unsigned int, Memory::RecyclerNonLeafAllocator [stack] Js::SCAEngine<void, unsigned int, Js::SerializationCloner<Js::StreamWriter> >::

Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=asan_chakra&range=201811080226:201904250255

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=5727599193489408

Issue filed automatically.

See https://github.com/google/oss-fuzz/blob/master/docs/reproducing.md for instructions to reproduce this bug locally.

This bug is subject to a 90 day disclosure deadline. If 90 days elapse without an upstream patch, then the bug report will automatically become visible to the public.