libzmq:test_connect_ws_fuzzer: Use-of-uninitialized-value in zmq::stream_engine_base_t::out_event

2020-07-17T06:25:53
ID OSSFUZZ-24200
Type ossfuzz
Reporter Google
Modified 2020-09-15T20:06:33

Description

Project: https://github.com/zeromq/libzmq.git

Detailed Report: https://oss-fuzz.com/testcase?key=6326324676001792

Project: libzmq Fuzzing Engine: libFuzzer Fuzz Target: test_connect_ws_fuzzer Job Type: libfuzzer_msan_libzmq Platform Id: linux

Crash Type: Use-of-uninitialized-value Crash Address: Crash State: zmq::stream_engine_base_t::out_event zmq::epoll_t::loop zmq::worker_poller_base_t::worker_routine

Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_libzmq&range=202007060323:202007070328

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=6326324676001792

Issue filed automatically.

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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.