diff options
Diffstat (limited to 'nbd/server.c')
| -rw-r--r-- | nbd/server.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/nbd/server.c b/nbd/server.c index 9e1f227178..493a926e06 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -2007,6 +2007,10 @@ static coroutine_fn int nbd_handle_request(NBDClient *client, "discard failed", errp); case NBD_CMD_BLOCK_STATUS: + if (!request->len) { + return nbd_send_generic_reply(client, request->handle, -EINVAL, + "need non-zero length", errp); + } if (client->export_meta.valid && client->export_meta.base_allocation) { return nbd_co_send_block_status(client, request->handle, blk_bs(exp->blk), request->from, |