libtsm: Global-buffer-overflow in vte_write_debug

Project: git://people.freedesktop.org/dvdhrm/libtsm Detailed report: https://clusterfuzz-external.appspot.com/testcase?key=5429041452548096 Target: libtsm Fuzzer: libFuzzerlibtsmfuzzer Fuzzer binary: libtsmfuzzer Job Type: libfuzzerasanlibtsm Platform Id: linux Crash Type: Global-buffer-overflow...