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54c6cf8666
This fixes connections against the Azure SMB3 server. It's not possible to demonstrate the bug with a test and a knownfail entry, because it fails to even startup the test environments, but the following change to our server demonstrates the problem and shows the fix works: diff --git a/source3/smbd/smb2_negprot.c b/source3/smbd/smb2_negprot.c index da567951c0bf..25fdaea2df7b 100644 --- a/source3/smbd/smb2_negprot.c +++ b/source3/smbd/smb2_negprot.c @@ -711,6 +711,8 @@ NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req) } } + security_buffer = data_blob_null; + if (out_negotiate_context_blob.length != 0) { static const uint8_t zeros[8]; size_t pad = 0; @@ -759,6 +761,8 @@ NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req) return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY); } + security_offset = 0; + SSVAL(outbody.data, 0x00, 0x40 + 1); /* struct size */ SSVAL(outbody.data, 0x02, security_mode); /* security mode */ BUG: https://bugzilla.samba.org/show_bug.cgi?id=15050 Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org> Autobuild-User(master): Jeremy Allison <jra@samba.org> Autobuild-Date(master): Mon May 2 20:13:10 UTC 2022 on sn-devel-184