frr:zebra: Crash in qfree

Detailed Report: https://oss-fuzz.com/testcase?key=6078068565868544 Project: frr Fuzzing Engine: libFuzzer Fuzz Target: zebra Job Type: libfuzzerubsanfrr Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x0002020c81fa Crash State: qfree streamfree zservhandlecommands Sanitizer: undefine...