#2333 heap-use-after-free in show_sched_status_wrk

[liuchenyifan]

gnuplot 5.5 (last modified in 9.18) on centos linux 7.7.1908

information below from valgrind
host stacktrace:
==17873== at 0x5804DAD3: show_sched_status_wrk (m_libcassert.c:406)
==17873== by 0x5804DBE7: report_and_quit (m_libcassert.c:477)
==17873== by 0x5804DE31: panic (m_libcassert.c:553)
==17873== by 0x5804DE31: vgPlain_core_panic_at (m_libcassert.c:558)
==17873== by 0x5804DE5A: vgPlain_core_panic (m_libcassert.c:563)
==17873== by 0x580639C2: failure_exit (m_translate.c:761)
==17873== by 0x5814D9B8: vex_assert_fail (main_util.c:245)
==17873== by 0x5818BA24: dis_string_op (guest_amd64_toIR.c:4600)
==17873== by 0x581D9713: dis_ESC_NONE.isra.71 (guest_amd64_toIR.c:20746)
==17873== by 0x581E3B9E: disInstr_AMD64_WRK (guest_amd64_toIR.c:32372)
==17873== by 0x581E4307: disInstr_AMD64 (guest_amd64_toIR.c:32540)
==17873== by 0x58169FC2: disassemble_basic_block_till_stop (guest_generic_bb_to_IR.c:953)
==17873== by 0x5816AF12: bb_to_IR (guest_generic_bb_to_IR.c:1363)
==17873== by 0x5814A10B: LibVEX_FrontEnd (main_main.c:583)
==17873== by 0x5814AA61: LibVEX_Translate (main_main.c:1235)
==17873== by 0x580661D7: vgPlain_translate (m_translate.c:1828)
==17873== by 0x580A8066: handle_tt_miss (scheduler.c:1138)
==17873== by 0x580A8066: vgPlain_scheduler (scheduler.c:1500)
==17873== by 0x5810268A: thread_wrapper (syswrap-linux.c:101)
==17873== by 0x5810268A: run_a_thread_NORETURN (syswrap-linux.c:154)

[Ethan Merritt]

not a gnuplot bug. That's your shell that's complaining.