Merge pull request #9054 from macOScontainers/canonicalize-filter-mount-path

Fix usages of `mountinfo.PrefixFilter`

pkg/cri/server/helpers_linux.go

@@ -164,6 +164,11 @@ func openLogFile(path string) (*os.File, error) {
 // unmountRecursive unmounts the target and all mounts underneath, starting with
 // the deepest mount first.
 func unmountRecursive(ctx context.Context, target string) error {
+	target, err := mount.CanonicalizePath(target)
+	if err != nil {
+		return err
+	}
+
 	toUnmount, err := mountinfo.GetMounts(mountinfo.PrefixFilter(target))
 	if err != nil {
 		return err