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Description of problem:

The call to winbind_lookup_name already wrote the result in the id_map array. The later check for the type detected a mismatch, but that did not remove the SID from the result struct.

So we end overwriting a sid->uid entry with a sid->gid entry in the idmap cache.

Without this, the fix for #2034800 (regression fix for CVE-2020-25717) can't work if the customer is using the idmap_hash or idmap_nss plugins for idmapping! The fixes apply cleanly and are known to be working on newer Samba versions.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (samba bug fix update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:5229