This race condition is caused when one thread creates a swap chain,
which calls OBS_CreateSwapchainKHR, at the same time another thread
calls OBS_CreateImageView.
OBS_CreateSwapchainKHR allocates swap data, publishes this into the
data->swaps linked list, then initializes it. Meanwhile,
OBS_CreateImageView is iterating the swaps linked list, to see if the
image matches any swap chain images. Due to the order in
OBS_CreateSwapchainKHR, there's no guarantee this data is initialized
so it often ends up running out of bounds on the swap_images array.
The fix is simply to defer the swap data publish to after init.
(cherry picked from commit aa1f2dea84)
16e3faf0d0