Invalid HS descriptor. Rejected (additional info for Issue #41094)

Hello moderator this issue is meant as answer in comments of current issue but Anonticket page is in bug The Tor Project / Core / Tor Issue #41094: http status 400 ("Invalid HS descriptor. Rejected.") response from dirserver Malformed hidden service descriptor?

https://anonticket.torproject.org/user/projects/tor/issues/41094/details/

Results into :Server Error (500)

I could isolate with my log changes that descriptors rejected are accepted from 7/8 HSDir nodes. So assuming the descriptors are valid but no valid reason to reject it.

When looking through logs, one pattern was very obviously, all rejected log entry are from HSDir flagged server on ORport :443 but could be random. Let's pretend there aren't 100s malicious nodes out there, but still some bug?

I could see in nyx with HS_DESC event logging enabled.

Here is the logs:

Events (TOR/NYX NOTICE-ERR, HS_DESC): │ 01:27:35 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $406A030C4A33800DA8E8CDCA72DAFC446A3787AC~~Unnamed │ 01:27:21 [HS_DESC] FAILED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd NO_AUTH │ $67221DF5B5D86B1C5E872A877BC5665FEAACC562~~pills Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow REASON=UPLOAD_REJECTED │ 01:27:21 [WARN] Uploading hidden service descriptor for service │ m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd ZsYBWlQlnHGSXL7sFcslIyaD02nA9VB/oxHgGvwKk34 : http status │ 400 ("Invalid HS descriptor. Rejected.") response from dirserver 67221DF5B5D86B1C5E872A877BC5665FEAACC562 at │ 107.189.8.70:443. Malformed hidden service descriptor? │ 01:27:21 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $3C8D73331027476CDAB9AE0722F491915BBC0DA3~~Unnamed │ 01:27:21 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $F192BD51EF2C9CA553646F28668D28A7AF1CAB0D~~usNjBobVps4806 │ 01:26:54 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $CCA99738D64ECF8E2D478FABA9D38EDAE6B5DCFD~~Quetzalcoatl │ 01:26:54 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $1DEECD906AFECF496B7DC1E40829F4563517B4CC~~Charybdis2 │ 01:26:54 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $9F74126EDD89BA77459823DFD25343D37EBA4F8D~~Timis │ 01:26:54 [HS_DESC] UPLOADED m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $8C25BA134D579B8AAF420E01215EB2CF06AAE907~~DigiGesTor5e4 │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $8C25BA134D579B8AAF420E01215EB2CF06AAE907DigiGesTor5e4 Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=04ACD342AC20EEE82B21A4626A0F1083AE10615E71020BA0185B622D7FDB7284 │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $3C8D73331027476CDAB9AE0722F491915BBC0DA3Unnamed Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=04AC074B4E8A1D6280BD1A7B1443105CE140EBEEF0BEE9ADB4AA1F2FD2A1D210 │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $1DEECD906AFECF496B7DC1E40829F4563517B4CCCharybdis2 Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=04A9F17EA25E7918BEE76AF7E6A88AE644DE60443883A0A07FCBE5561957A2F6 │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $9F74126EDD89BA77459823DFD25343D37EBA4F8DTimis Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=04A8371F3DCEDA34468355FAAAA9674CF708B3912A4B3E6AA55FCDA75203CE0E │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $F192BD51EF2C9CA553646F28668D28A7AF1CAB0DusNjBobVps4806 Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=70035ECFC1C64883AF36057E30F5A04C9759D4BEA6594934EAB5E7620366E887 │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $67221DF5B5D86B1C5E872A877BC5665FEAACC562pills Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=6FEC2FFE5463CCD6A235DAE86DDD2EA32BCFCB36482249F6AD08EF89D4ECE412 │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $CCA99738D64ECF8E2D478FABA9D38EDAE6B5DCFDQuetzalcoatl Z4PUNOQ1+/PdEZJqp4r9IJ8r1usAjWNq3Oju2BDFcow │ HSDIR_INDEX=6FEBFCD705BD2BD5B23F22B0FCEC81725069B1D1B4A16EE43F3B75866B637A4F │ 01:26:29 [HS_DESC] UPLOAD m3dacwsuewohdes4x3wblszfemtihu3jyd2va75dchqbv7aksn7by6yd UNKNOWN │ $406A030C4A33800DA8E8CDCA72DAFC446A3787ACUnnamed Z4P