go.mod: github.com/containernetworking/plugins v0.9.1

full diff: https://github.com/containernetworking/plugins/compare/v0.8.6...v0.9.1

changes in vendored code:

- (in containernetworking/plugins): Fix race condition in GetCurrentNS
- (in containernetworking/cni): tighten up plugin-finding logic

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor/github.com/containernetworking/cni/pkg/invoke/find.go

@@ -18,6 +18,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 )
 
 // FindInPath returns the full path of the plugin by searching in the provided path
@@ -26,6 +27,10 @@ func FindInPath(plugin string, paths []string) (string, error) {
 		return "", fmt.Errorf("no plugin name provided")
 	}
 
+	if strings.ContainsRune(plugin, os.PathSeparator) {
+		return "", fmt.Errorf("invalid plugin name: %s", plugin)
+	}
+
 	if len(paths) == 0 {
 		return "", fmt.Errorf("no paths provided")
 	}