Hello Miao Wang, Thank you for the bug report and link to the upstream patch.
> There have been fixes and backporting from upstream. I wonder if the patches can be applied to bullseye-pu and buster-backports? Yes, I have uploaded the fix to unstable just now, I will try to get this fix in bullseye in time for the 11.1 release. And I'll do the backports upload as soon as the fix reaches testing. Thank you, -- Samuel Henrique <samueloph>