Blender Crashing When Painting Stroke into a "Moving Animated Character" (heap-use-after-free) #75045

New Issue

Jimmy Gunawan · 2020-03-24T01:27:58+01:00

Jimmy Gunawan commented

2020-03-24 01:27:58 +01:00

Blender Version
Broken: 4.0 alpha
Broken: version: 2.79 - 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: 375c7dc4ca
Worked: Never

Short description of error
I have this experiment of making LIVE talking head, via OSC. And I noticed that if I tried painting a stroke on a talking moving animated head, it will crash. Even with timeline not running.

I got a video (Might need iPhone X with MOM addon to test this....) :
https://youtu.be/jhHdG6ZXFDU

Exact steps for others to reproduce the error

Open attached file
Run animation
Paint over the animated object
paint_animated_shapekey_bug.blend

**Blender Version** Broken: 4.0 alpha Broken: version: 2.79 - 2.82 (sub 7), branch: master, commit date: 2020-03-12 05:06, hash: `375c7dc4ca` Worked: Never **Short description of error** I have this experiment of making LIVE talking head, via OSC. And I noticed that if I tried painting a stroke on a talking moving animated head, it will crash. Even with timeline not running. I got a video (Might need iPhone X with MOM addon to test this....) : https://youtu.be/jhHdG6ZXFDU **Exact steps for others to reproduce the error** - Open attached file - Run animation - Paint over the animated object [paint_animated_shapekey_bug.blend](https://archive.blender.org/developer/F8426993/paint_animated_shapekey_bug.blend)

Jimmy Gunawan commented

2020-03-24 01:27:58 +01:00

Added subscriber: @BlenderSushiGuy

blender-admin commented

2020-03-24 01:27:58 +01:00

#92358 was marked as duplicate of this issue

blender-admin commented

2020-03-24 01:27:58 +01:00

#84532 was marked as duplicate of this issue

Eitan Traurig commented

2020-03-24 01:36:14 +01:00

Added subscriber: @EitanSomething

Eitan Traurig commented

2020-03-24 01:36:14 +01:00

Changed status from 'Needs Triage' to: 'Archived'

Eitan Traurig closed this issue

2020-03-24 01:36:14 +01:00

Eitan Traurig self-assigned this 2020-03-24 01:36:14 +01:00

Eitan Traurig commented

2020-03-24 01:36:14 +01:00

This report is being closed because the addon is not maintained by blender. Please report the bug to the developer of the addon.

Jimmy Gunawan commented

2020-03-24 02:41:12 +01:00

This is not BPainter app, it's actually Blender normal Texture Painting causing Blender to crash when painting on animated shapes.

Eitan Traurig commented

2020-03-24 02:50:20 +01:00

Can you provide the blend file

Eitan Traurig commented

2020-03-24 03:01:55 +01:00

I am unable to get blender to crash. The crash is probably related to the MOM addon and should be reported to the MOM developers

Jimmy Gunawan commented

2020-03-24 04:47:41 +01:00

It's not MOM addon or BPainter addo, it's when you paint on 3D mesh with animated Shapekeys, Blender crashes. I can 100% confirm this.

Eitan Traurig commented

2020-03-24 05:14:37 +01:00

Changed status from 'Archived' to: 'Needs Triage'

Eitan Traurig reopened this issue

2020-03-24 05:14:37 +01:00

Eitan Traurig removed their assignment 2020-03-24 05:14:37 +01:00

Eitan Traurig commented

2020-03-24 05:14:37 +01:00

Sorry for closing prematurely. I will let someone more familiar with shapekeys take a look at it.

Eitan Traurig commented

2020-03-24 05:27:32 +01:00

Can you test to see if this crashes in 2.83. https://builder.blender.org/download/

Jimmy Gunawan commented

2020-03-24 12:14:15 +01:00

Hi Eitan, I tested with 2.83 Alpha latest, and still confirmed crashing.

Proof video:
https://youtu.be/dcDFYNlQmt4

Hi Eitan, I tested with 2.83 Alpha latest, and still confirmed crashing. Proof video: https://youtu.be/dcDFYNlQmt4

Jimmy Gunawan commented

2020-03-24 12:23:15 +01:00

What interesting is that this crashing bug / limitation existed since 2.79, I just realised. Ok, if we cannot actually paint on animated shapekeys / while timeline is running, it should not crash at least. Funny thing: we can "stamp" click but not brush stroke or moving it. Maybe it should be possible to paint this way, it would be really quite cool.

Germano Cavalcante commented

2020-03-24 15:13:33 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2020-03-30 18:23:36 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-03-30 18:23:36 +02:00

heap-use-after-free

1 project_paint_face_init   paint_image_proj.c 3013 0x43bd12f      
2 project_bucket_init       paint_image_proj.c 3522 0x43beaed      
3 do_projectpaint_thread    paint_image_proj.c 5250 0x43c3eac      
4 task_scheduler_thread_run task.c             450  0xa8b2ab1      
5 start_thread                                      0x7ffff7c754e2 
6 clone                                             0x7ffff00206d3

Full ASAN output here P1317

heap-use-after-free ``` 1 project_paint_face_init paint_image_proj.c 3013 0x43bd12f 2 project_bucket_init paint_image_proj.c 3522 0x43beaed 3 do_projectpaint_thread paint_image_proj.c 5250 0x43c3eac 4 task_scheduler_thread_run task.c 450 0xa8b2ab1 5 start_thread 0x7ffff7c754e2 6 clone 0x7ffff00206d3 ``` Full ASAN output here [P1317](https://archive.blender.org/developer/P1317.txt)

Philipp Oeser changed title from ~~Blender Crashing When Painting Stroke into a "Moving Animated Character"~~ to Blender Crashing When Painting Stroke into a "Moving Animated Character" (heap-use-after-free)

2020-03-30 18:23:51 +02:00

Philipp Oeser commented

2021-01-11 10:13:36 +01:00

Added subscribers: @Diogo_Valadares, @rjg

Pratik Borhade commented

2021-10-20 08:01:13 +02:00

Added subscribers: @Odog8, @PratikPB2123

Philipp Oeser removed the

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Blender Crashing When Painting Stroke into a "Moving Animated Character" (heap-use-after-free) #75045