diff options
Diffstat (limited to 'meta/recipes-devtools/go/go-1.14/CVE-2022-30635.patch')
| -rw-r--r-- | meta/recipes-devtools/go/go-1.14/CVE-2022-30635.patch | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/meta/recipes-devtools/go/go-1.14/CVE-2022-30635.patch b/meta/recipes-devtools/go/go-1.14/CVE-2022-30635.patch new file mode 100644 index 0000000000..73959f70fa --- /dev/null +++ b/meta/recipes-devtools/go/go-1.14/CVE-2022-30635.patch @@ -0,0 +1,120 @@ +From fdd4316737ed5681689a1f40802ffa0805e5b11c Mon Sep 17 00:00:00 2001 +From: Hitendra Prajapati <hprajapati@mvista.com> +Date: Fri, 26 Aug 2022 12:17:05 +0530 +Subject: [PATCH] CVE-2022-30635 + +Upstream-Status: Backport [https://github.com/golang/go/commit/cd54600b866db0ad068ab8df06c7f5f6cb55c9b3] +CVE-2022-30635 +Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> +--- + src/encoding/gob/decode.go | 19 ++++++++++++------- + src/encoding/gob/gobencdec_test.go | 24 ++++++++++++++++++++++++ + 2 files changed, 36 insertions(+), 7 deletions(-) + +diff --git a/src/encoding/gob/decode.go b/src/encoding/gob/decode.go +index d2f6c74..0e0ec75 100644 +--- a/src/encoding/gob/decode.go ++++ b/src/encoding/gob/decode.go +@@ -871,8 +871,13 @@ func (dec *Decoder) decOpFor(wireId typeId, rt reflect.Type, name string, inProg + return &op + } + ++var maxIgnoreNestingDepth = 10000 ++ + // decIgnoreOpFor returns the decoding op for a field that has no destination. +-func (dec *Decoder) decIgnoreOpFor(wireId typeId, inProgress map[typeId]*decOp) *decOp { ++func (dec *Decoder) decIgnoreOpFor(wireId typeId, inProgress map[typeId]*decOp, depth int) *decOp { ++ if depth > maxIgnoreNestingDepth { ++ error_(errors.New("invalid nesting depth")) ++ } + // If this type is already in progress, it's a recursive type (e.g. map[string]*T). + // Return the pointer to the op we're already building. + if opPtr := inProgress[wireId]; opPtr != nil { +@@ -896,7 +901,7 @@ func (dec *Decoder) decIgnoreOpFor(wireId typeId, inProgress map[typeId]*decOp) + errorf("bad data: undefined type %s", wireId.string()) + case wire.ArrayT != nil: + elemId := wire.ArrayT.Elem +- elemOp := dec.decIgnoreOpFor(elemId, inProgress) ++ elemOp := dec.decIgnoreOpFor(elemId, inProgress, depth+1) + op = func(i *decInstr, state *decoderState, value reflect.Value) { + state.dec.ignoreArray(state, *elemOp, wire.ArrayT.Len) + } +@@ -904,15 +909,15 @@ func (dec *Decoder) decIgnoreOpFor(wireId typeId, inProgress map[typeId]*decOp) + case wire.MapT != nil: + keyId := dec.wireType[wireId].MapT.Key + elemId := dec.wireType[wireId].MapT.Elem +- keyOp := dec.decIgnoreOpFor(keyId, inProgress) +- elemOp := dec.decIgnoreOpFor(elemId, inProgress) ++ keyOp := dec.decIgnoreOpFor(keyId, inProgress, depth+1) ++ elemOp := dec.decIgnoreOpFor(elemId, inProgress, depth+1) + op = func(i *decInstr, state *decoderState, value reflect.Value) { + state.dec.ignoreMap(state, *keyOp, *elemOp) + } + + case wire.SliceT != nil: + elemId := wire.SliceT.Elem +- elemOp := dec.decIgnoreOpFor(elemId, inProgress) ++ elemOp := dec.decIgnoreOpFor(elemId, inProgress, depth+1) + op = func(i *decInstr, state *decoderState, value reflect.Value) { + state.dec.ignoreSlice(state, *elemOp) + } +@@ -1073,7 +1078,7 @@ func (dec *Decoder) compileSingle(remoteId typeId, ut *userTypeInfo) (engine *de + func (dec *Decoder) compileIgnoreSingle(remoteId typeId) *decEngine { + engine := new(decEngine) + engine.instr = make([]decInstr, 1) // one item +- op := dec.decIgnoreOpFor(remoteId, make(map[typeId]*decOp)) ++ op := dec.decIgnoreOpFor(remoteId, make(map[typeId]*decOp), 0) + ovfl := overflow(dec.typeString(remoteId)) + engine.instr[0] = decInstr{*op, 0, nil, ovfl} + engine.numInstr = 1 +@@ -1118,7 +1123,7 @@ func (dec *Decoder) compileDec(remoteId typeId, ut *userTypeInfo) (engine *decEn + localField, present := srt.FieldByName(wireField.Name) + // TODO(r): anonymous names + if !present || !isExported(wireField.Name) { +- op := dec.decIgnoreOpFor(wireField.Id, make(map[typeId]*decOp)) ++ op := dec.decIgnoreOpFor(wireField.Id, make(map[typeId]*decOp), 0) + engine.instr[fieldnum] = decInstr{*op, fieldnum, nil, ovfl} + continue + } +diff --git a/src/encoding/gob/gobencdec_test.go b/src/encoding/gob/gobencdec_test.go +index 6d2c8db..1b52ecc 100644 +--- a/src/encoding/gob/gobencdec_test.go ++++ b/src/encoding/gob/gobencdec_test.go +@@ -12,6 +12,7 @@ import ( + "fmt" + "io" + "net" ++ "reflect" + "strings" + "testing" + "time" +@@ -796,3 +797,26 @@ func TestNetIP(t *testing.T) { + t.Errorf("decoded to %v, want 1.2.3.4", ip.String()) + } + } ++ ++func TestIngoreDepthLimit(t *testing.T) { ++ // We don't test the actual depth limit because it requires building an ++ // extremely large message, which takes quite a while. ++ oldNestingDepth := maxIgnoreNestingDepth ++ maxIgnoreNestingDepth = 100 ++ defer func() { maxIgnoreNestingDepth = oldNestingDepth }() ++ b := new(bytes.Buffer) ++ enc := NewEncoder(b) ++ typ := reflect.TypeOf(int(0)) ++ nested := reflect.ArrayOf(1, typ) ++ for i := 0; i < 100; i++ { ++ nested = reflect.ArrayOf(1, nested) ++ } ++ badStruct := reflect.New(reflect.StructOf([]reflect.StructField{{Name: "F", Type: nested}})) ++ enc.Encode(badStruct.Interface()) ++ dec := NewDecoder(b) ++ var output struct{ Hello int } ++ expectedErr := "invalid nesting depth" ++ if err := dec.Decode(&output); err == nil || err.Error() != expectedErr { ++ t.Errorf("Decode didn't fail with depth limit of 100: want %q, got %q", expectedErr, err) ++ } ++} +-- +2.25.1 + |