qemu: Don't crash if virtiofsd path is non existent

Instead, report an error and exit gracefully, as shown below: ``` dahmer fidencio # podman run -ti --runtime=/usr/bin/kata-runtime fedora sh Error: virtiofsd path (/usr/libexec/virtiofsd) does not exist: OCI runtime error ``` Fixes: #2582 Signed-off-by: Fabiano Fidêncio <[email protected]>
kata-containers · Apr 3, 2020 · fd625b3 · fd625b3
1 parent 705713b
commit fd625b3
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/virtcontainers/qemu.go b/virtcontainers/qemu.go
@@ -638,6 +638,10 @@ func (q *qemu) setupVirtiofsd() (err error) {
 	var listener *net.UnixListener
 	var fd *os.File
 
+	if _, err = os.Stat(q.config.VirtioFSDaemon); os.IsNotExist(err) {
+		return fmt.Errorf("virtiofsd path (%s) does not exist", q.config.VirtioFSDaemon)
+	}
+
 	sockPath, err := q.vhostFSSocketPath(q.id)
 	if err != nil {
 		return err