OSV-2023-67 Heap-use-after-free in config__cleanup

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56009 Crash type: Heap-use-after-free READ 8 Crash state: configcleanup mosquittofuzzmain runbroker...

mosquitto:broker_fuzz_test_config: Heap-use-after-free in config__cleanup

Project: https://github.com/eclipse/mosquitto.git Detailed Report: https://oss-fuzz.com/testcase?key=5007090919014400 Project: mosquitto Fuzzing Engine: libFuzzer Fuzz Target: brokerfuzztestconfig Job Type: libfuzzerasanmosquitto Platform Id: linux Crash Type: Heap-use-after-free READ 8 Crash...