Custom Normal Data Transfer Crashes when some vertexes have no faces #53343

Closed
opened 2017-11-18 18:09:14 +01:00 by Tapple Gao · 8 comments

System Information
Windows 10 x64, nVidia GEForce 650m

Blender Version
Broken: 2.79 d697e3d
Worked: (optional)

The data transfer modifier can cause blender to segfault if the source mesh has some vertices without a face, due to either deletion or mask modifier

Exact steps for others to reproduce the error

  • Open the attached blend file. it opens in edit mode on the data transfer source mesh
  • Either delete the selected vertex, or remove it from the "hide1" vertex group, which is part of a mask modifier

Press tab to exit edit mode. Blender immediately crashes

data transfer normals modifier crash3.blend

**System Information** Windows 10 x64, nVidia GEForce 650m **Blender Version** Broken: 2.79 d697e3d Worked: (optional) The data transfer modifier can cause blender to segfault if the source mesh has some vertices without a face, due to either deletion or mask modifier **Exact steps for others to reproduce the error** - Open the attached blend file. it opens in edit mode on the data transfer source mesh - Either delete the selected vertex, or remove it from the "hide1" vertex group, which is part of a mask modifier # Press tab to exit edit mode. Blender immediately crashes [data transfer normals modifier crash3.blend](https://archive.blender.org/developer/F1156089/data_transfer_normals_modifier_crash3.blend)
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

Added subscriber: @tapplek

Added subscriber: @tapplek

Added subscriber: @zeauro

Added subscriber: @zeauro

I can't reproduce crash on ubuntu 16.04 with master 40c8a18 and 2.79 with provided .blend file.

I can't reproduce crash on ubuntu 16.04 with master 40c8a18 and 2.79 with provided .blend file.

Added subscriber: @mont29

Added subscriber: @mont29
Bastien Montagne self-assigned this 2017-11-19 17:36:37 +01:00

Crash confirmed here with an ASAN debug build (@zeauro release builds on Linux are tremendously resilient to small invalid memory accesses for some reasons, unlike on Windows… But Linux debug builds with ASAN enabled do spot any illegal access. ;) ).

Crash confirmed here with an ASAN debug build (@zeauro release builds on Linux are tremendously resilient to small invalid memory accesses for some reasons, unlike on Windows… But Linux debug builds with ASAN enabled do spot any illegal access. ;) ).

This issue was referenced by 784614655f

This issue was referenced by 784614655f55f81eec04c2b898e8ab8dbb99a3ec

Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'
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Reference: blender/blender#53343
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