diff options
| -rw-r--r-- | source4/smb_server/smb2/fileio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/source4/smb_server/smb2/fileio.c b/source4/smb_server/smb2/fileio.c index 2c322ea587..4f4402ba33 100644 --- a/source4/smb_server/smb2/fileio.c +++ b/source4/smb_server/smb2/fileio.c @@ -254,6 +254,12 @@ void smb2srv_read_recv(struct smb2srv_request *req) union smb_read *io; SMB2SRV_CHECK_BODY_SIZE(req, 0x30, true); + + /* MS-SMB2 2.2.19 read must have a single byte of zero */ + if (req->in.body_size - req->in.body_fixed < 1) { + smb2srv_send_error(req, NT_STATUS_INVALID_PARAMETER); + return; + } SMB2SRV_TALLOC_IO_PTR(io, union smb_read); SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_read_send, NTVFS_ASYNC_STATE_MAY_ASYNC); |