diff options
| -rw-r--r-- | fs/cifs/smb2pdu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 8e4a1da95418..21ac19ff19cb 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1631,10 +1631,13 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree, /* * 3.11 tcon req must be signed if not encrypted. See MS-SMB2 3.2.4.1.1 * unless it is guest or anonymous user. See MS-SMB2 3.2.5.3.1 + * (Samba servers don't always set the flag so also check if null user) */ if ((ses->server->dialect == SMB311_PROT_ID) && !smb3_encryption_required(tcon) && - !(ses->session_flags & (SMB2_SESSION_FLAG_IS_GUEST|SMB2_SESSION_FLAG_IS_NULL))) + !(ses->session_flags & + (SMB2_SESSION_FLAG_IS_GUEST|SMB2_SESSION_FLAG_IS_NULL)) && + ((ses->user_name != NULL) || (ses->sectype == Kerberos))) req->sync_hdr.Flags |= SMB2_FLAGS_SIGNED; memset(&rqst, 0, sizeof(struct smb_rqst)); |