Reproduction steps:
1. Open the attached “CrashRepro” project
2. Open the Unity Version Control window (Window > Unity Version Control)
3. Check one of the files under Assets/Free/Wooden Floor Pack

4. Click "CheckinChanges" button. You may need to dismiss a popup. Confirm it if so.

5. No crash? Go back to step 3. I can repro consistently when I do this about 5-7 times.

Expected result: The changes are checked in
Actual result: Unity Editor crashes. Editor.log states near the end that it ran out of memory.

Reproducible with: 2023.2.0b4, 2023.2.3f1, 2023.2.5f1, 6000.0.3f1

Reproducible on: Ubuntu 22.04, Ubuntu 23.10, Manjaro
Not reproducible on: No other environment tested

First lines of the stack trace:
#0 0x007fb6fdc42910 in __sigaction
#1 0x007fb6fe752417 in gtk_css_provider_get_named
#2 0x007fb6fe7172ff in gtk_container_get_path_for_child
#3 0x007fb6fe74d25a in gtk_css_provider_get_named
#4 0x007fb6fe737036 in gtk_css_provider_new
#5 0x007fb6fe731947 in gtk_style_properties_register_property
#6 0x007fb6fe731bd5 in gtk_style_properties_register_property