update runc to v1.0.0-rc93

full diff: https://github.com/opencontainers/runc/compare/v1.0.0-rc92...v1.0.0-rc93

also removes dependency on libcontainer/configs

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

vendor/github.com/cilium/ebpf/internal/btf/fuzz.go

@@ -0,0 +1,49 @@
+// +build gofuzz
+
+// Use with https://github.com/dvyukov/go-fuzz
+
+package btf
+
+import (
+	"bytes"
+	"encoding/binary"
+
+	"github.com/cilium/ebpf/internal"
+)
+
+func FuzzSpec(data []byte) int {
+	if len(data) < binary.Size(btfHeader{}) {
+		return -1
+	}
+
+	spec, err := loadNakedSpec(bytes.NewReader(data), internal.NativeEndian, nil, nil)
+	if err != nil {
+		if spec != nil {
+			panic("spec is not nil")
+		}
+		return 0
+	}
+	if spec == nil {
+		panic("spec is nil")
+	}
+	return 1
+}
+
+func FuzzExtInfo(data []byte) int {
+	if len(data) < binary.Size(btfExtHeader{}) {
+		return -1
+	}
+
+	table := stringTable("\x00foo\x00barfoo\x00")
+	info, err := parseExtInfo(bytes.NewReader(data), internal.NativeEndian, table)
+	if err != nil {
+		if info != nil {
+			panic("info is not nil")
+		}
+		return 0
+	}
+	if info == nil {
+		panic("info is nil")
+	}
+	return 1
+}