I don't think it's fixed, Just starting yesterday, two of our Apple Silicon Macs (M4) at the office running 26.4 and now 26.4.1, are experiencing a kernel panic and force reboot when attempting to connect to a Windows 11 File server SMB share. I came here looking for posts related to it, and ended up here. Also searched on Google and this problem has been happening to a lot of folks on 26.4. Please Apple, get this fixed ASAP, it is affecting out ability to work.