Since the AMD Inception vulnerability was made public in August there were kernel patches merged that day and since then there's been a few rounds of clean-ups and fixes for this mitigation code formally known as the Speculative Return Stack Overflow (SRSO)
Intel's Linux graphics driver engineers have begun submitting their feature changes to DRM-Next of new i915 kernel driver feature material they are preparing for the Linux 6.7 cycle this winter.
With Linux 6.6 the KSMBD server is no longer 'experimental' while this new kernel on the SMB3 client side also brings a notable addition: the new 'dir cache timeout' option to control the cache time for directory contents.