Commit e07f8901ec95aab8c36965000de185d99e642644 removed the required handling for empty DNS domain names.
                                                                                                                                                                                                          
As for NT domains the dns_name will be NULL, causing the talloc_steal() to also return NULL, which causes _wbint_ListTrustedDomains return NT_STATUS_NO_MEMORY with an only partially initialized struct netr_DomainTrust: as out->array[n].sid is not yet initialized correctly, when NDR-pushing the result, the ndr_push() can crash.

To reproduce I used the following hack on master:

diff --git a/selftest/target/Samba3.pm b/selftest/target/Samba3.pm
index f5ca2ee37a32..09962c8b8738 100755
--- a/selftest/target/Samba3.pm
+++ b/selftest/target/Samba3.pm
@@ -775,7 +775,7 @@ sub provision_ad_member
        template homedir = /home/%D/%G/%U
        auth event notification = true
        password server = $dcvars->{SERVER}
-       winbind scan trusted domains = no
+       winbind scan trusted domains = yes
        winbind offline logon = $option_offline_logon
 
        allow dcerpc auth level connect:lsarpc = yes
diff --git a/source3/winbindd/winbindd_ads.c b/source3/winbindd/winbindd_ads.c
index d7a665abbc6d..4922a0e61d24 100644
--- a/source3/winbindd/winbindd_ads.c
+++ b/source3/winbindd/winbindd_ads.c
@@ -1493,6 +1493,11 @@ static NTSTATUS trusted_domains(struct winbindd_domain *domain,
                        continue;
                }
 
+               if (strequal("SAMBA2003", trust->netbios_name)) {
+                       DBG_ERR("XXXXXXX HACK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
+                       trust->dns_name = NULL;
+               }
+
                /* add to the trusted domain cache */

Then:

$ make -j testenv SELFTEST_TESTENV=ad_member SCREEN=1

This results in an an reliable error to list trusted domains, so wbinfo -m doesn't list them, and sometimes it crashes when eg the domain sid pointer is garbage:

    2023-12-08T14:07:42.759416+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: trusted_domains: XXXXXXX HACK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    2023-12-08T14:07:42.759691+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: ===============================================================
    2023-12-08T14:07:42.759702+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: INTERNAL ERROR: Signal 11: Segmentation fault in winbindd (wb[ADDOMAIN]) (domain child [ADDOMAIN]) pid 157227 (4.20.0pre1-DEVELOPERBUILD)
    2023-12-08T14:07:42.759712+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting
    2023-12-08T14:07:42.759723+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: ===============================================================
    2023-12-08T14:07:42.759730+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: PANIC (pid 157227): Signal 11: Segmentation fault in 4.20.0pre1-DEVELOPERBUILD
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]: BACKTRACE: 36 stack frames:
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #0 bin/shared/private/libgenrand-samba4.so(log_stack_trace+0x1f) [0x7f1396acd441]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #1 bin/shared/private/libgenrand-samba4.so(smb_panic_log+0x20f) [0x7f1396acd3d5]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #2 bin/shared/private/libgenrand-samba4.so(smb_panic+0x18) [0x7f1396acd3f0]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #3 bin/shared/private/libgenrand-samba4.so(+0x2eb5) [0x7f1396acceb5]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #4 bin/shared/private/libgenrand-samba4.so(+0x2eca) [0x7f1396acceca]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #5 /lib64/libc.so.6(+0x3dbb0) [0x7f139687abb0]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #6 bin/shared/private/libsamba-security-samba4.so(ndr_push_dom_sid2+0x2a) [0x7f13977e5437]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #7 bin/shared/libndr-standard.so.0(ndr_push_netr_DomainTrust+0x4ad) [0x7f1396deb64c]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #8 bin/shared/libndr-standard.so.0(ndr_push_netr_DomainTrustList+0x204) [0x7f1396dec7a9]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #9 bin/shared/private/libndr-samba4.so(+0x239bf9) [0x7f1397639bf9]
    2023-12-08T14:07:42.760443+00:00 localadmember.addom.samba.example.com log.winbindd[157227]:  #10 winbindd: domain child [ADDOMAIN](winbind__op_ndr_push+0x5a) [0x55741e6857a8]

Have patches, need bugnumber.