@trelane Hello, the bug affects Xen drivers of any 9.0 series (considering the upstream code, it goes back to circa September 2019). 9.2.385 contains the fix, which was merged upstream just this month. The bug also impacts network connections, however to a lesser extent due to its nature.
I believe that the bug is also present in XenServer VM Tools 9.6.0 and by extension, older versions of it.
We recommend that you switch to the XCP-ng tools whenever possible, also due to its other benefits (fully open source, validated for XCP-ng and optimized for Xen Orchestra).