SegFault with WhiteWall ICC profile for softproof

[arctic-alpaca]

Describe the bug

Darktable (current master: 88741ec) segfaults when using the "WhiteWall Bildband Inapa Galaxi Art Samt (Inkjet)" ICC profile for softproofing.

I believe this issue was already discussed in https://github.com/darktable-org/darktable/issues/15061 but the crash seems to persist.

Steps to reproduce

1. Add "WhiteWall Coffee Table Book Inapa Galaxi Art Samt (Inkjet)" to $HOME/.config/darktable/color/out
2. set softproof profile to WhiteWall_ICC_Book_Inapa_Galaxi_Art_Samt_V1
3. toggle softproof in darkroom
4. segfault

Expected behavior

No segfault, softproof is applied

Logfile | Screenshot | Screencast

The log (-d all) and backtrace starting with changing the softproof profile to WhiteWall_ICC_Book_Inapa_Galaxi_Art_Samt_V1: log.txt

Commit

No response

Where did you install darktable from?

self compiled

darktable version

88741ec

What OS are you using?

Linux

What is the version of your OS?

Fedora 38

Describe your system?

X11 AMD Radeon RX 6800 XT AMD Ryzen 7 5800X3D 32GB RAM

Are you using OpenCL GPU in darktable?

No

If yes, what is the GPU card and driver?

No response

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

No response

[TurboGit]

I reopen because the crash is fixed but we should support this so I do suspect a bug somewhere breaking the softproofing support.

[TurboGit]

@dtorop : Maybe you have an idea about the possible issue here as you've been working on histogram and color in the past?

[jsmucr]

I'd like to mention here that as of 4.6 there's still something broken there, because histogram disappears when a CMYK profile is loaded.