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2.8: Deleting a scene uses freed memory #51877

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opened 2017-06-23 09:54:15 +02:00 by Campbell Barton · 5 comments
Campbell Barton commented 2017-06-23 09:54:15 +02:00
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Remove scene on the following file causes a crash (using asan).

delete_scene_crash.blend

==6399==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000124f68 at pc 0x0000034be4db bp 0x7ffd0b34e450 sp 0x7ffd0b34e440
READ of size 8 at 0x603000124f68 thread T0
    - 0 0x34be4da in BKE_scene_objects_iterator_next /src/blender/source/blender/blenkernel/intern/collection.c:611
    - 1 0x37d78e0 in libblock_remap_data_preprocess /src/blender/source/blender/blenkernel/intern/library_remap.c:299
    - 2 0x37d8f3a in libblock_remap_data /src/blender/source/blender/blenkernel/intern/library_remap.c:469
    - 3 0x37da905 in BKE_libblock_relink_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:673
    - 4 0x37db6a8 in BKE_libblock_free_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:899
    - 5 0x37db7fc in BKE_libblock_free /src/blender/source/blender/blenkernel/intern/library_remap.c:927
    - 6 0x1e72a93 in ED_scene_delete /src/blender/source/blender/editors/scene/scene_edit.c:107
    - 7 0x1e736bf in scene_delete_exec /src/blender/source/blender/editors/scene/scene_edit.c:237
    - 8 0x971709 in wm_operator_invoke /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1154
    - 9 0x972a94 in wm_operator_call_internal /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1339
    - 10 0x972d36 in WM_operator_name_call_ptr /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1387
    - 11 0x167b3f5 in ui_apply_but_funcs_after /src/blender/source/blender/editors/interface/interface_handlers.c:796
    - 12 0x16e7fbe in ui_handler_region_menu /src/blender/source/blender/editors/interface/interface_handlers.c:10099
    - 13 0x96afb1 in wm_handler_ui_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:480
    - 14 0x97940d in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2106
    - 15 0x97a88c in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2255
    - 16 0x97cd4c in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2539
    - 17 0x94d995 in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:506
    - 18 0x940d60 in main /src/blender/source/creator/creator.c:526
    - 19 0x7f4db8cf3439 in __libc_start_main (/usr/lib/libc.so.6+0x20439)
    #20 0x93ff39 in _start (/src/cmake_debug/bin/blender+0x93ff39)

0x603000124f68 is located 8 bytes inside of 32-byte region [0x603000124f60,0x603000124f80)
freed by thread T0 here:
    - 0 0x7f4dbbe694c8 in __interceptor_free /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:45
    - 1 0x49e81dc in MEM_lockfree_freeN /src/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:169
    - 2 0x34bc3a7 in BKE_collection_object_remove /src/blender/source/blender/blenkernel/intern/collection.c:284
    - 3 0x34bc5a7 in BKE_collections_object_remove /src/blender/source/blender/blenkernel/intern/collection.c:315
    - 4 0x37d744b in libblock_remap_data_preprocess_scene_object_unlink /src/blender/source/blender/blenkernel/intern/library_remap.c:278
    - 5 0x37d78d4 in libblock_remap_data_preprocess /src/blender/source/blender/blenkernel/intern/library_remap.c:301
    - 6 0x37d8f3a in libblock_remap_data /src/blender/source/blender/blenkernel/intern/library_remap.c:469
    - 7 0x37da905 in BKE_libblock_relink_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:673
    - 8 0x37db6a8 in BKE_libblock_free_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:899
    - 9 0x37db7fc in BKE_libblock_free /src/blender/source/blender/blenkernel/intern/library_remap.c:927
    - 10 0x1e72a93 in ED_scene_delete /src/blender/source/blender/editors/scene/scene_edit.c:107
    - 11 0x1e736bf in scene_delete_exec /src/blender/source/blender/editors/scene/scene_edit.c:237
    - 12 0x971709 in wm_operator_invoke /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1154
    - 13 0x972a94 in wm_operator_call_internal /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1339
    - 14 0x972d36 in WM_operator_name_call_ptr /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1387
    - 15 0x167b3f5 in ui_apply_but_funcs_after /src/blender/source/blender/editors/interface/interface_handlers.c:796
    - 16 0x16e7fbe in ui_handler_region_menu /src/blender/source/blender/editors/interface/interface_handlers.c:10099
    - 17 0x96afb1 in wm_handler_ui_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:480
    - 18 0x97940d in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2106
    - 19 0x97a88c in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2255
    - 20 0x97cd4c in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2539
    - 21 0x94d995 in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:506
    - 22 0x940d60 in main /src/blender/source/creator/creator.c:526
    - 23 0x7f4db8cf3439 in __libc_start_main (/usr/lib/libc.so.6+0x20439)

previously allocated by thread T0 here:
    - 0 0x7f4dbbe69860 in __interceptor_malloc /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:62
    - 1 0x49e8aad in MEM_lockfree_mallocN /src/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:307
    - 2 0x319786b in read_struct /src/blender/source/blender/blenloader/intern/readfile.c:1903
    - 3 0x31f72aa in read_data_into_oldnewmap /src/blender/source/blender/blenloader/intern/readfile.c:8318
    - 4 0x31f84e1 in read_libblock /src/blender/source/blender/blenloader/intern/readfile.c:8449
    - 5 0x31fcd64 in blo_read_file_internal /src/blender/source/blender/blenloader/intern/readfile.c:8899
    - 6 0x318479b in BLO_read_from_file /src/blender/source/blender/blenloader/intern/readblenentry.c:331
    - 7 0x3415d4c in BKE_blendfile_read /src/blender/source/blender/blenkernel/intern/blendfile.c:381
    - 8 0x98a50f in WM_file_read /src/blender/source/blender/windowmanager/intern/wm_files.c:569
    - 9 0x9923d2 in wm_file_read_opwrap /src/blender/source/blender/windowmanager/intern/wm_files.c:1704
    - 10 0x992a98 in wm_open_mainfile_exec /src/blender/source/blender/windowmanager/intern/wm_files.c:1763
    - 11 0x97722b in wm_handler_fileselect_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1901
    - 12 0x978398 in wm_handler_fileselect_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1988
    - 13 0x979529 in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2112
    - 14 0x97a88c in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2255
    - 15 0x97d5cb in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2632
    - 16 0x94d995 in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:506
    - 17 0x940d60 in main /src/blender/source/creator/creator.c:526
    #18 0x7f4db8cf3439 in __libc_start_main (/usr/lib/libc.so.6+0x20439)

SUMMARY: AddressSanitizer: heap-use-after-free /src/blender/source/blender/blenkernel/intern/collection.c:611 in BKE_scene_objects_iterator_next
Shadow bytes around the buggy address:
  0x0c068001c990: fa fa 00 00 00 00 fa fa 00 00 00 00 fa fa 00 00
  0x0c068001c9a0: 00 00 fa fa 00 00 00 00 fa fa 00 00 00 00 fa fa
  0x0c068001c9b0: 00 00 00 00 fa fa 00 00 00 00 fa fa 00 00 00 fa
  0x0c068001c9c0: fa fa 00 00 04 fa fa fa fd fd fd fd fa fa fd fd
  0x0c068001c9d0: fd fd fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa
=>0x0c068001c9e0: 00 00 00 00 fa fa fd fd fd fd fa fa fd[fd]fd fd
  0x0c068001c9f0: fa fa 00 00 00 00 fa fa fd fd fd fd fa fa fd fd
  0x0c068001ca00: fd fd fa fa 00 00 00 00 fa fa 00 00 00 fa fa fa
  0x0c068001ca10: 00 00 04 fa fa fa fd fd fd fd fa fa fd fd fd fd
  0x0c068001ca20: fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa fd fd
  0x0c068001ca30: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
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
==6399==ABORTING
Remove scene on the following file causes a crash (using asan). [delete_scene_crash.blend](https://archive.blender.org/developer/F639700/delete_scene_crash.blend) ``` ==6399==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000124f68 at pc 0x0000034be4db bp 0x7ffd0b34e450 sp 0x7ffd0b34e440 READ of size 8 at 0x603000124f68 thread T0 - 0 0x34be4da in BKE_scene_objects_iterator_next /src/blender/source/blender/blenkernel/intern/collection.c:611 - 1 0x37d78e0 in libblock_remap_data_preprocess /src/blender/source/blender/blenkernel/intern/library_remap.c:299 - 2 0x37d8f3a in libblock_remap_data /src/blender/source/blender/blenkernel/intern/library_remap.c:469 - 3 0x37da905 in BKE_libblock_relink_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:673 - 4 0x37db6a8 in BKE_libblock_free_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:899 - 5 0x37db7fc in BKE_libblock_free /src/blender/source/blender/blenkernel/intern/library_remap.c:927 - 6 0x1e72a93 in ED_scene_delete /src/blender/source/blender/editors/scene/scene_edit.c:107 - 7 0x1e736bf in scene_delete_exec /src/blender/source/blender/editors/scene/scene_edit.c:237 - 8 0x971709 in wm_operator_invoke /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1154 - 9 0x972a94 in wm_operator_call_internal /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1339 - 10 0x972d36 in WM_operator_name_call_ptr /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1387 - 11 0x167b3f5 in ui_apply_but_funcs_after /src/blender/source/blender/editors/interface/interface_handlers.c:796 - 12 0x16e7fbe in ui_handler_region_menu /src/blender/source/blender/editors/interface/interface_handlers.c:10099 - 13 0x96afb1 in wm_handler_ui_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:480 - 14 0x97940d in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2106 - 15 0x97a88c in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2255 - 16 0x97cd4c in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2539 - 17 0x94d995 in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:506 - 18 0x940d60 in main /src/blender/source/creator/creator.c:526 - 19 0x7f4db8cf3439 in __libc_start_main (/usr/lib/libc.so.6+0x20439) #20 0x93ff39 in _start (/src/cmake_debug/bin/blender+0x93ff39) 0x603000124f68 is located 8 bytes inside of 32-byte region [0x603000124f60,0x603000124f80) freed by thread T0 here: - 0 0x7f4dbbe694c8 in __interceptor_free /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:45 - 1 0x49e81dc in MEM_lockfree_freeN /src/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:169 - 2 0x34bc3a7 in BKE_collection_object_remove /src/blender/source/blender/blenkernel/intern/collection.c:284 - 3 0x34bc5a7 in BKE_collections_object_remove /src/blender/source/blender/blenkernel/intern/collection.c:315 - 4 0x37d744b in libblock_remap_data_preprocess_scene_object_unlink /src/blender/source/blender/blenkernel/intern/library_remap.c:278 - 5 0x37d78d4 in libblock_remap_data_preprocess /src/blender/source/blender/blenkernel/intern/library_remap.c:301 - 6 0x37d8f3a in libblock_remap_data /src/blender/source/blender/blenkernel/intern/library_remap.c:469 - 7 0x37da905 in BKE_libblock_relink_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:673 - 8 0x37db6a8 in BKE_libblock_free_ex /src/blender/source/blender/blenkernel/intern/library_remap.c:899 - 9 0x37db7fc in BKE_libblock_free /src/blender/source/blender/blenkernel/intern/library_remap.c:927 - 10 0x1e72a93 in ED_scene_delete /src/blender/source/blender/editors/scene/scene_edit.c:107 - 11 0x1e736bf in scene_delete_exec /src/blender/source/blender/editors/scene/scene_edit.c:237 - 12 0x971709 in wm_operator_invoke /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1154 - 13 0x972a94 in wm_operator_call_internal /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1339 - 14 0x972d36 in WM_operator_name_call_ptr /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1387 - 15 0x167b3f5 in ui_apply_but_funcs_after /src/blender/source/blender/editors/interface/interface_handlers.c:796 - 16 0x16e7fbe in ui_handler_region_menu /src/blender/source/blender/editors/interface/interface_handlers.c:10099 - 17 0x96afb1 in wm_handler_ui_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:480 - 18 0x97940d in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2106 - 19 0x97a88c in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2255 - 20 0x97cd4c in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2539 - 21 0x94d995 in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:506 - 22 0x940d60 in main /src/blender/source/creator/creator.c:526 - 23 0x7f4db8cf3439 in __libc_start_main (/usr/lib/libc.so.6+0x20439) previously allocated by thread T0 here: - 0 0x7f4dbbe69860 in __interceptor_malloc /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:62 - 1 0x49e8aad in MEM_lockfree_mallocN /src/blender/intern/guardedalloc/intern/mallocn_lockfree_impl.c:307 - 2 0x319786b in read_struct /src/blender/source/blender/blenloader/intern/readfile.c:1903 - 3 0x31f72aa in read_data_into_oldnewmap /src/blender/source/blender/blenloader/intern/readfile.c:8318 - 4 0x31f84e1 in read_libblock /src/blender/source/blender/blenloader/intern/readfile.c:8449 - 5 0x31fcd64 in blo_read_file_internal /src/blender/source/blender/blenloader/intern/readfile.c:8899 - 6 0x318479b in BLO_read_from_file /src/blender/source/blender/blenloader/intern/readblenentry.c:331 - 7 0x3415d4c in BKE_blendfile_read /src/blender/source/blender/blenkernel/intern/blendfile.c:381 - 8 0x98a50f in WM_file_read /src/blender/source/blender/windowmanager/intern/wm_files.c:569 - 9 0x9923d2 in wm_file_read_opwrap /src/blender/source/blender/windowmanager/intern/wm_files.c:1704 - 10 0x992a98 in wm_open_mainfile_exec /src/blender/source/blender/windowmanager/intern/wm_files.c:1763 - 11 0x97722b in wm_handler_fileselect_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1901 - 12 0x978398 in wm_handler_fileselect_call /src/blender/source/blender/windowmanager/intern/wm_event_system.c:1988 - 13 0x979529 in wm_handlers_do_intern /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2112 - 14 0x97a88c in wm_handlers_do /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2255 - 15 0x97d5cb in wm_event_do_handlers /src/blender/source/blender/windowmanager/intern/wm_event_system.c:2632 - 16 0x94d995 in WM_main /src/blender/source/blender/windowmanager/intern/wm.c:506 - 17 0x940d60 in main /src/blender/source/creator/creator.c:526 #18 0x7f4db8cf3439 in __libc_start_main (/usr/lib/libc.so.6+0x20439) SUMMARY: AddressSanitizer: heap-use-after-free /src/blender/source/blender/blenkernel/intern/collection.c:611 in BKE_scene_objects_iterator_next Shadow bytes around the buggy address: 0x0c068001c990: fa fa 00 00 00 00 fa fa 00 00 00 00 fa fa 00 00 0x0c068001c9a0: 00 00 fa fa 00 00 00 00 fa fa 00 00 00 00 fa fa 0x0c068001c9b0: 00 00 00 00 fa fa 00 00 00 00 fa fa 00 00 00 fa 0x0c068001c9c0: fa fa 00 00 04 fa fa fa fd fd fd fd fa fa fd fd 0x0c068001c9d0: fd fd fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa =>0x0c068001c9e0: 00 00 00 00 fa fa fd fd fd fd fa fa fd[fd]fd fd 0x0c068001c9f0: fa fa 00 00 00 00 fa fa fd fd fd fd fa fa fd fd 0x0c068001ca00: fd fd fa fa 00 00 00 00 fa fa 00 00 00 fa fa fa 0x0c068001ca10: 00 00 04 fa fa fa fd fd fd fd fa fa fd fd fd fd 0x0c068001ca20: fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa fd fd 0x0c068001ca30: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa 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 ==6399==ABORTING ```
Campbell Barton commented 2017-06-23 09:54:15 +02:00
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Changed status to: 'Open'

Changed status to: 'Open'
Campbell Barton commented 2017-06-23 09:54:15 +02:00
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Added subscriber: @ideasman42

Added subscriber: @ideasman42
Dalai Felinto self-assigned this 2017-06-30 16:52:03 +02:00
Dalai Felinto commented 2017-06-30 18:09:55 +02:00
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I can reproduce this with:

./blender --python-expr "import bpy;scene=bpy.context.scene;bpy.data.scenes.new('New');bpy.data.scenes.remove(scene)"

(only with ASAN, so it doesn't crash on release builds at least, but something else may break down the line)

I can reproduce this with: ``` ./blender --python-expr "import bpy;scene=bpy.context.scene;bpy.data.scenes.new('New');bpy.data.scenes.remove(scene)" ``` *(only with ASAN, so it doesn't crash on release builds at least, but something else may break down the line)*
blender-admin commented 2017-06-30 18:59:29 +02:00
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This issue was referenced by 49a35033be

This issue was referenced by 49a35033be60e58ed4910346bc29ffa1954b34ec
Dalai Felinto commented 2017-06-30 19:03:51 +02:00
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Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'
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