On initial connect MacOS catalina connects to mdssvc.c pipe. If the "UTF8-NFD" or "UTF8-NFC" iconv conversions are not installed, the error exits on this pipe cause an smbd crash trying to free an iconv handle of (-1).
Have patch, need bugnumber.
Created attachment 15958 [details]
git-am fix for 4.12.next.
Cherry-pick from master. Applies cleanly. Only needed for 4.12.next, not previous versions.
Reassigning to Karolin for inclusion in 4.12.
(In reply to Ralph Böhme from comment #3)
Pushed to autobuild-v4-12-test.
(In reply to Karolin Seeger from comment #4)
Pushed to v4-12-test.
Closing out bug report.