https://bugs.winehq.org/show_bug.cgi?id=50649
--- Comment #2 from Giovanni Mascellani gmascellani@codeweavers.com --- I hadn't realized that libvulkan_lvp.so is the lavapipe Vulkan (software) implementation (once called llvmpipe). Disabling the corresponding ICD made the crash disappear.
Lavapipe has been recently enabled (on my request...) in the Debian mesa package starting from version 20.3.2-1 (see https://tracker.debian.org/media/packages/m/mesa/changelog-20.3.4-1), and is currently in Debian testing, which is staged to be released in a few months. I am not sure about the timing, but it will eventually reach Ubuntu too. Therefore this crash might soon become a problem for many users (unless this also depends on some problem in my local configuration).
I tried to write a little program to reproduce the crash out of Wine (attached), but it doesn't crash.