==9075==ERROR: AddressSanitizer: heap-use-after-free on address 0x6070000ece50 at pc 0x55e04b8f91db bp 0x7ffd01e030c0 sp 0x7ffd01e030b0
READ of size 4 at 0x6070000ece50 thread T0
    #0 0x55e04b8f91da in actionzone_modal /src/blender/source/blender/editors/screen/screen_ops.c:1034
    #1 0x55e04b75456b in wm_handler_operator_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1983
    #2 0x55e04b75e04e in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2741
    #3 0x55e04b75e44b in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2789
    #4 0x55e04b763ccf in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:3168
    #5 0x55e04b72e21d in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:418
    #6 0x55e04b71daa9 in main /src/blender/source/creator/creator.c:518
    #7 0x7f0c5a117152 in __libc_start_main (/usr/lib/libc.so.6+0x27152)
    #8 0x55e04b71cddd in _start (/src/cmake_debug/bin/blender+0x8d12ddd)

0x6070000ece50 is located 32 bytes inside of 72-byte region [0x6070000ece30,0x6070000ece78)
freed by thread T0 here:
    #0 0x7f0c5b5306b0 in __interceptor_free /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:122
    #1 0x55e05116917b in MEM_lockfree_freeN /src/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:157
    #2 0x55e050f8f5fe in BLI_freelistN /src/blender/source/blender/blenlib/intern/listbase.c:554
    #3 0x55e04b88c464 in area_azone_initialize /src/blender/source/blender/editors/screen/area.c:797
    #4 0x55e04b8a43e5 in ED_area_initialize /src/blender/source/blender/editors/screen/area.c:1790
    #5 0x55e04b92b8ef in region_blend_end /src/blender/source/blender/editors/screen/screen_ops.c:5109
    #6 0x55e04b92c68f in region_blend_invoke /src/blender/source/blender/editors/screen/screen_ops.c:5178
    #7 0x55e04b74c536 in wm_operator_invoke /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1257
    #8 0x55e04b755510 in wm_handler_operator_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2081
    #9 0x55e04b759727 in wm_handlers_do_keymap_with_keymap_handler /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2391
    #10 0x55e04b75b0cb in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2527
    #11 0x55e04b75e44b in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2789
    #12 0x55e04b764e0c in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:3276
    #13 0x55e04b72e21d in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:418
    #14 0x55e04b71daa9 in main /src/blender/source/creator/creator.c:518
    #15 0x7f0c5a117152 in __libc_start_main (/usr/lib/libc.so.6+0x27152)

previously allocated by thread T0 here:
    #0 0x7f0c5b530cd8 in __interceptor_calloc /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:153
    #1 0x55e051169925 in MEM_lockfree_callocN /src/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:267
    #2 0x55e04b88d7a0 in area_azone_initialize /src/blender/source/blender/editors/screen/area.c:851
    #3 0x55e04b8a43e5 in ED_area_initialize /src/blender/source/blender/editors/screen/area.c:1790
    #4 0x55e04b92be73 in ED_region_visibility_change_update_animated /src/blender/source/blender/editors/screen/screen_ops.c:5140
    #5 0x55e04e4799fb in rna_Space_bool_from_region_flag_update_by_type /src/blender/source/blender/makesrna/intern/rna_space.c:628
    #6 0x55e04e47a063 in rna_Space_show_region_ui_update /src/blender/source/blender/makesrna/intern/rna_space.c:737
    #7 0x55e04dd0d256 in rna_property_update /src/blender/source/blender/makesrna/intern/rna_access.c:2232
    #8 0x55e04dd0db1a in RNA_property_update /src/blender/source/blender/makesrna/intern/rna_access.c:2291
    #9 0x55e04e6afe34 in pyrna_py_to_prop /src/blender/source/blender/python/intern/bpy_rna.c:2205
    #10 0x55e04e6c3120 in pyrna_struct_setattro /src/blender/source/blender/python/intern/bpy_rna.c:4521
    #11 0x7f0c5a6b6dd7 in PyObject_SetAttr (/usr/lib/libpython3.8.so.1.0+0x15edd7)

SUMMARY: AddressSanitizer: heap-use-after-free /src/blender/source/blender/editors/screen/screen_ops.c:1034 in actionzone_modal
Shadow bytes around the buggy address:
  0x0c0e80015970: fa fa fd fd fd fd fd fd fd fd fd fa fa fa fa fa
  0x0c0e80015980: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fd fd
  0x0c0e80015990: fd fd fd fd fd fd fd fa fa fa fa fa fd fd fd fd
  0x0c0e800159a0: fd fd fd fd fd fa fa fa fa fa fd fd fd fd fd fd
  0x0c0e800159b0: fd fd fd fa fa fa fa fa fd fd fd fd fd fd fd fd
=>0x0c0e800159c0: fd fa fa fa fa fa fd fd fd fd[fd]fd fd fd fd fa
  0x0c0e800159d0: fa fa fa fa fd fd fd fd fd fd fd fd fd fa fa fa
  0x0c0e800159e0: fa fa fd fd fd fd fd fd fd fd fd fa fa fa fa fa
  0x0c0e800159f0: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fd fd
  0x0c0e80015a00: fd fd fd fd fd fd fd fa fa fa fa fa fd fd fd fd
  0x0c0e80015a10: fd fd fd fd fd fa fa fa fa fa fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
  Shadow gap:              cc