Merge pull request #1963 from containers/renovate/github.com-containers-storage-1.x

Update module github.com/containers/storage to v1.46.1

go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/containers/common v0.51.2
 	github.com/containers/image/v5 v5.25.0
 	github.com/containers/ocicrypt v1.1.7
-	github.com/containers/storage v1.46.0
+	github.com/containers/storage v1.46.1
 	github.com/docker/distribution v2.8.1+incompatible
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.1.0-rc2
@@ -72,7 +72,7 @@ require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.16.3 // indirect
+	github.com/klauspost/compress v1.16.4 // indirect
 	github.com/klauspost/pgzip v1.2.6-0.20220930104621-17e8dac29df8 // indirect
 	github.com/leodido/go-urn v1.2.2 // indirect
 	github.com/letsencrypt/boulder v0.0.0-20230213213521-fdfea0d469b6 // indirect

go.sum

@@ -223,8 +223,8 @@ github.com/containers/ocicrypt v1.1.0/go.mod h1:b8AOe0YR67uU8OqfVNcznfFpAzu3rdgU
 github.com/containers/ocicrypt v1.1.1/go.mod h1:Dm55fwWm1YZAjYRaJ94z2mfZikIyIN4B0oB3dj3jFxY=
 github.com/containers/ocicrypt v1.1.7 h1:thhNr4fu2ltyGz8aMx8u48Ae0Pnbip3ePP9/mzkZ/3U=
 github.com/containers/ocicrypt v1.1.7/go.mod h1:7CAhjcj2H8AYp5YvEie7oVSK2AhBY8NscCYRawuDNtw=
-github.com/containers/storage v1.46.0 h1:K3Tw/U+ZwmMT/tzX04mh5wnK2PuIdEGS2BGMP7ZYAqw=
-github.com/containers/storage v1.46.0/go.mod h1:AVNewDV1jODy8b4Ia4AgsJ6UFKQSIaOQvQ8S6N4VuH0=
+github.com/containers/storage v1.46.1 h1:GcAe8J0Y6T2CF70fXPojUpnme6zXamuzGCrNujVtIGE=
+github.com/containers/storage v1.46.1/go.mod h1:81vNDX4h+nXJ2o0D6Yqy6JGXDYJGVpHZpz0nr09iJuQ=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-iptables v0.4.5/go.mod h1:/mVI274lEDI2ns62jHCDnCyBF9Iwsmekav8Dbxlm1MU=
@@ -576,8 +576,8 @@ github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0
 github.com/klauspost/compress v1.11.3/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
 github.com/klauspost/compress v1.11.13/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
 github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
-github.com/klauspost/compress v1.16.3 h1:XuJt9zzcnaz6a16/OU53ZjWp/v7/42WcR5t2a0PcNQY=
-github.com/klauspost/compress v1.16.3/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
+github.com/klauspost/compress v1.16.4 h1:91KN02FnsOYhuunwU4ssRe8lc2JosWmizWa91B5v1PU=
+github.com/klauspost/compress v1.16.4/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
 github.com/klauspost/pgzip v1.2.6-0.20220930104621-17e8dac29df8 h1:BcxbplxjtczA1a6d3wYoa7a0WL3rq9DKBMGHeKyjEF0=
 github.com/klauspost/pgzip v1.2.6-0.20220930104621-17e8dac29df8/go.mod h1:Ch1tH69qFZu15pkjo5kYi6mth2Zzwzt50oCQKQE9RUs=

vendor/github.com/containers/storage/.cirrus.yml

@@ -23,7 +23,7 @@ env:
     # GCE project where images live
     IMAGE_PROJECT: "libpod-218412"
     # VM Image built in containers/automation_images
-    IMAGE_SUFFIX: "c20230330t153101z-f37f36d12"
+    IMAGE_SUFFIX: "c20230405t152256z-f37f36d12"
     FEDORA_CACHE_IMAGE_NAME: "fedora-${IMAGE_SUFFIX}"
     DEBIAN_CACHE_IMAGE_NAME: "debian-${IMAGE_SUFFIX}"
 

vendor/github.com/containers/storage/VERSION

@@ -1 +1 @@
-1.46.0
+1.46.1

vendor/github.com/containers/storage/containers.go

@@ -666,7 +666,7 @@ func (r *containerStore) create(id string, names []string, image, layer string,
 	if _, idInUse := r.byid[id]; idInUse {
 		return nil, ErrDuplicateID
 	}
-	names = dedupeNames(names)
+	names = dedupeStrings(names)
 	for _, name := range names {
 		if _, nameInUse := r.byname[name]; nameInUse {
 			return nil, fmt.Errorf("the container name %q is already in use by %s. You have to remove that container to be able to reuse that name: %w", name, r.byname[name].ID, ErrDuplicateName)

vendor/github.com/containers/storage/images.go

@@ -703,7 +703,7 @@ func (r *imageStore) create(id string, names []string, layer string, options Ima
 	if _, idInUse := r.byid[id]; idInUse {
 		return nil, fmt.Errorf("an image with ID %q already exists: %w", id, ErrDuplicateID)
 	}
-	names = dedupeNames(names)
+	names = dedupeStrings(names)
 	for _, name := range names {
 		if image, nameInUse := r.byname[name]; nameInUse {
 			return nil, fmt.Errorf("image name %q is already associated with image %q: %w", name, image.ID, ErrDuplicateName)
@@ -712,7 +712,7 @@ func (r *imageStore) create(id string, names []string, layer string, options Ima
 	image = &Image{
 		ID:             id,
 		Digest:         options.Digest,
-		Digests:        copyDigestSlice(options.Digests),
+		Digests:        dedupeDigests(options.Digests),
 		Names:          names,
 		NamesHistory:   copyStringSlice(options.NamesHistory),
 		TopLayer:       layer,
@@ -820,7 +820,7 @@ func (r *imageStore) removeName(image *Image, name string) {
 
 // The caller must hold r.inProcessLock for writing.
 func (i *Image) addNameToHistory(name string) {
-	i.NamesHistory = dedupeNames(append([]string{name}, i.NamesHistory...))
+	i.NamesHistory = dedupeStrings(append([]string{name}, i.NamesHistory...))
 }
 
 // Requires startWriting.

vendor/github.com/containers/storage/layers.go

@@ -1230,7 +1230,7 @@ func (r *layerStore) create(id string, parentLayer *Layer, names []string, mount
 	if duplicateLayer, idInUse := r.byid[id]; idInUse {
 		return duplicateLayer, -1, ErrDuplicateID
 	}
-	names = dedupeNames(names)
+	names = dedupeStrings(names)
 	for _, name := range names {
 		if _, nameInUse := r.byname[name]; nameInUse {
 			return nil, -1, ErrDuplicateName

vendor/github.com/containers/storage/pkg/ioutils/fswriters.go

@@ -17,6 +17,20 @@ type AtomicFileWriterOptions struct {
 	// On successful return from Close() this is set to the mtime of the
 	// newly written file.
 	ModTime time.Time
+	// Specifies whether Commit() must be explicitly called to write state
+	// to the destination. This allows an application to preserve the original
+	// file when an error occurs during processing (and not just during write)
+	// The default is false, which will auto-commit on Close
+	ExplicitCommit bool
+}
+
+type CommittableWriter interface {
+	io.WriteCloser
+
+	// Commit closes the temporary file associated with this writer, and
+	// provided no errors (during commit or previously during write operations),
+	// will publish the completed file under the intended destination.
+	Commit() error
 }
 
 var defaultWriterOptions = AtomicFileWriterOptions{}
@@ -27,16 +41,19 @@ func SetDefaultOptions(opts AtomicFileWriterOptions) {
 	defaultWriterOptions = opts
 }
 
-// NewAtomicFileWriterWithOpts returns WriteCloser so that writing to it writes to a
-// temporary file and closing it atomically changes the temporary file to
-// destination path. Writing and closing concurrently is not allowed.
-func NewAtomicFileWriterWithOpts(filename string, perm os.FileMode, opts *AtomicFileWriterOptions) (io.WriteCloser, error) {
+// NewAtomicFileWriterWithOpts returns a CommittableWriter so that writing to it
+// writes to a temporary file, which can later be committed to a destination path,
+// either by Closing in the case of auto-commit, or manually calling commit if the
+// ExplicitCommit option is enabled. Writing and closing concurrently is not
+// allowed.
+func NewAtomicFileWriterWithOpts(filename string, perm os.FileMode, opts *AtomicFileWriterOptions) (CommittableWriter, error) {
 	return newAtomicFileWriter(filename, perm, opts)
 }
 
-// newAtomicFileWriter returns WriteCloser so that writing to it writes to a
-// temporary file and closing it atomically changes the temporary file to
-// destination path. Writing and closing concurrently is not allowed.
+// newAtomicFileWriter returns a CommittableWriter so that writing to it writes to
+// a temporary file, which can later be committed to a destination path, either by
+// Closing in the case of auto-commit, or manually calling commit if the
+// ExplicitCommit option is enabled. Writing and closing concurrently is not allowed.
 func newAtomicFileWriter(filename string, perm os.FileMode, opts *AtomicFileWriterOptions) (*atomicFileWriter, error) {
 	f, err := os.CreateTemp(filepath.Dir(filename), ".tmp-"+filepath.Base(filename))
 	if err != nil {
@@ -54,13 +71,14 @@ func newAtomicFileWriter(filename string, perm os.FileMode, opts *AtomicFileWrit
 		fn:             abspath,
 		perm:           perm,
 		noSync:         opts.NoSync,
+		explicitCommit: opts.ExplicitCommit,
 	}, nil
 }
 
-// NewAtomicFileWriter returns WriteCloser so that writing to it writes to a
-// temporary file and closing it atomically changes the temporary file to
-// destination path. Writing and closing concurrently is not allowed.
-func NewAtomicFileWriter(filename string, perm os.FileMode) (io.WriteCloser, error) {
+// NewAtomicFileWriterWithOpts returns a CommittableWriter, with auto-commit enabled.
+// Writing to it writes to a temporary file and closing it atomically changes the
+// temporary file to destination path. Writing and closing concurrently is not allowed.
+func NewAtomicFileWriter(filename string, perm os.FileMode) (CommittableWriter, error) {
 	return NewAtomicFileWriterWithOpts(filename, perm, nil)
 }
 
@@ -97,6 +115,8 @@ type atomicFileWriter struct {
 	perm           os.FileMode
 	noSync         bool
 	modTime        time.Time
+	closed         bool
+	explicitCommit bool
 }
 
 func (w *atomicFileWriter) Write(dt []byte) (int, error) {
@@ -107,43 +127,73 @@ func (w *atomicFileWriter) Write(dt []byte) (int, error) {
 	return n, err
 }
 
-func (w *atomicFileWriter) Close() (retErr error) {
+func (w *atomicFileWriter) closeTempFile() error {
+	if w.closed {
+		return nil
+	}
+
+	w.closed = true
+	return w.f.Close()
+}
+
+func (w *atomicFileWriter) Close() error {
+	return w.complete(!w.explicitCommit)
+}
+
+func (w *atomicFileWriter) Commit() error {
+	return w.complete(true)
+}
+
+func (w *atomicFileWriter) complete(commit bool) (retErr error) {
+	if w == nil || w.closed {
+		return nil
+	}
+
 	defer func() {
+		w.closeTempFile()
 		if retErr != nil || w.writeErr != nil {
 			os.Remove(w.f.Name())
 		}
 	}()
-	if !w.noSync {
-		if err := fdatasync(w.f); err != nil {
-			w.f.Close()
-			return err
-		}
+
+	if commit {
+		return w.commitState()
 	}
 
-	// fstat before closing the fd
-	info, statErr := w.f.Stat()
-	if statErr == nil {
+	return nil
+}
+
+func (w *atomicFileWriter) commitState() error {
+	// Perform a data only sync (fdatasync()) if supported
+	if err := w.postDataWrittenSync(); err != nil {
+		return err
+	}
+
+	// Capture fstat before closing the fd
+	info, err := w.f.Stat()
+	if err != nil {
+		return err
+	}
 	w.modTime = info.ModTime()
-	}
-	// We delay error reporting until after the real call to close()
-	// to match the traditional linux close() behaviour that an fd
-	// is invalid (closed) even if close returns failure. While
-	// weird, this allows a well defined way to not leak open fds.
 
-	if err := w.f.Close(); err != nil {
+	if err := w.f.Chmod(w.perm); err != nil {
 		return err
 	}
 
-	if statErr != nil {
-		return statErr
-	}
-
-	if err := os.Chmod(w.f.Name(), w.perm); err != nil {
+	// Perform full sync on platforms that need it
+	if err := w.preRenameSync(); err != nil {
 		return err
 	}
+
+	// Some platforms require closing before rename (Windows)
+	if err := w.closeTempFile(); err != nil {
+		return err
+	}
+
 	if w.writeErr == nil {
 		return os.Rename(w.f.Name(), w.fn)
 	}
+
 	return nil
 }
 
@@ -195,7 +245,7 @@ func (w syncFileCloser) Close() error {
 	if !defaultWriterOptions.NoSync {
 		return w.File.Close()
 	}
-	err := fdatasync(w.File)
+	err := dataOrFullSync(w.File)
 	if err1 := w.File.Close(); err == nil {
 		err = err1
 	}

vendor/github.com/containers/storage/pkg/ioutils/fswriters_linux.go

@@ -6,6 +6,18 @@ import (
 	"golang.org/x/sys/unix"
 )
 
-func fdatasync(f *os.File) error {
+func dataOrFullSync(f *os.File) error {
 	return unix.Fdatasync(int(f.Fd()))
 }
+
+func (w *atomicFileWriter) postDataWrittenSync() error {
+	if w.noSync {
+		return nil
+	}
+	return unix.Fdatasync(int(w.f.Fd()))
+}
+
+func (w *atomicFileWriter) preRenameSync() error {
+	// On Linux data can be reliably flushed to media without metadata, so defer
+	return nil
+}

vendor/github.com/containers/storage/pkg/ioutils/fswriters_other.go

@@ -0,0 +1,26 @@
+//go:build !linux
+// +build !linux
+
+package ioutils
+
+import (
+	"os"
+)
+
+func dataOrFullSync(f *os.File) error {
+	return f.Sync()
+}
+
+func (w *atomicFileWriter) postDataWrittenSync() error {
+	// many platforms (Mac, Windows) require a full sync to reliably flush to media
+	return nil
+}
+
+func (w *atomicFileWriter) preRenameSync() error {
+	if w.noSync {
+		return nil
+	}
+
+	// fsync() on Non-linux Unix, FlushFileBuffers (Windows), F_FULLFSYNC (Mac)
+	return w.f.Sync()
+}

vendor/github.com/containers/storage/pkg/ioutils/fswriters_unsupported.go

@@ -1,12 +0,0 @@
-//go:build !linux
-// +build !linux
-
-package ioutils
-
-import (
-	"os"
-)
-
-func fdatasync(f *os.File) error {
-	return f.Sync()
-}

vendor/github.com/containers/storage/store.go

@@ -1384,26 +1384,90 @@ func (s *store) CreateImage(id string, names []string, layer, metadata string, i
 		layer = ilayer.ID
 	}
 
-	var res *Image
-	err := s.writeToImageStore(func() error {
 	var options ImageOptions
+	var namesToAddAfterCreating []string
 
-		if iOptions != nil {
-			options = *iOptions
-			options.Digests = copyDigestSlice(iOptions.Digests)
-			options.BigData = copyImageBigDataOptionSlice(iOptions.BigData)
-			options.NamesHistory = copyStringSlice(iOptions.NamesHistory)
-			options.Flags = copyStringInterfaceMap(iOptions.Flags)
+	if err := s.imageStore.startWriting(); err != nil {
+		return nil, err
 	}
+	defer s.imageStore.stopWriting()
+
+	// Check if the ID refers to an image in a read-only store -- we want
+	// to allow images in read-only stores to have their names changed, so
+	// if we find one, merge the new values in with what we know about the
+	// image that's already there.
+	if id != "" {
+		for _, is := range s.roImageStores {
+			store := is
+			if err := store.startReading(); err != nil {
+				return nil, err
+			}
+			defer store.stopReading()
+			if i, err := store.Get(id); err == nil {
+				// set information about this image in "options"
+				options = ImageOptions{
+					Metadata:     i.Metadata,
+					CreationDate: i.Created,
+					Digest:       i.Digest,
+					Digests:      copyDigestSlice(i.Digests),
+					NamesHistory: copyStringSlice(i.NamesHistory),
+				}
+				for _, key := range i.BigDataNames {
+					data, err := store.BigData(id, key)
+					if err != nil {
+						return nil, err
+					}
+					dataDigest, err := store.BigDataDigest(id, key)
+					if err != nil {
+						return nil, err
+					}
+					options.BigData = append(options.BigData, ImageBigDataOption{
+						Key:    key,
+						Data:   data,
+						Digest: dataDigest,
+					})
+				}
+				namesToAddAfterCreating = dedupeStrings(append(append([]string{}, i.Names...), names...))
+				break
+			}
+		}
+	}
+
+	// merge any passed-in options into "options" as best we can
+	if iOptions != nil {
+		if !iOptions.CreationDate.IsZero() {
+			options.CreationDate = iOptions.CreationDate
+		}
+		if iOptions.Digest != "" {
+			options.Digest = iOptions.Digest
+		}
+		options.Digests = append(options.Digests, copyDigestSlice(iOptions.Digests)...)
+		if iOptions.Metadata != "" {
+			options.Metadata = iOptions.Metadata
+		}
+		options.BigData = append(options.BigData, copyImageBigDataOptionSlice(iOptions.BigData)...)
+		options.NamesHistory = append(options.NamesHistory, copyStringSlice(iOptions.NamesHistory)...)
+		if options.Flags == nil {
+			options.Flags = make(map[string]interface{})
+		}
+		for k, v := range iOptions.Flags {
+			options.Flags[k] = v
+		}
+	}
+
 	if options.CreationDate.IsZero() {
 		options.CreationDate = time.Now().UTC()
 	}
+	if metadata != "" {
 		options.Metadata = metadata
+	}
 
-		var err error
-		res, err = s.imageStore.create(id, names, layer, options)
-		return err
-	})
+	res, err := s.imageStore.create(id, names, layer, options)
+	if err == nil && len(namesToAddAfterCreating) > 0 {
+		// set any names we pulled up from an additional image store, now that we won't be
+		// triggering a duplicate names error
+		err = s.imageStore.updateNames(res.ID, namesToAddAfterCreating, addNames)
+	}
 	return res, err
 }
 
@@ -2130,18 +2194,30 @@ func (s *store) Exists(id string) bool {
 	return s.containerStore.Exists(id)
 }
 
-func dedupeNames(names []string) []string {
-	seen := make(map[string]bool)
+func dedupeStrings(names []string) []string {
+	seen := make(map[string]struct{})
 	deduped := make([]string, 0, len(names))
 	for _, name := range names {
 		if _, wasSeen := seen[name]; !wasSeen {
-			seen[name] = true
+			seen[name] = struct{}{}
 			deduped = append(deduped, name)
 		}
 	}
 	return deduped
 }
 
+func dedupeDigests(digests []digest.Digest) []digest.Digest {
+	seen := make(map[digest.Digest]struct{})
+	deduped := make([]digest.Digest, 0, len(digests))
+	for _, d := range digests {
+		if _, wasSeen := seen[d]; !wasSeen {
+			seen[d] = struct{}{}
+			deduped = append(deduped, d)
+		}
+	}
+	return deduped
+}
+
 // Deprecated: Prone to race conditions, suggested alternatives are `AddNames` and `RemoveNames`.
 func (s *store) SetNames(id string, names []string) error {
 	return s.updateNames(id, names, setNames)
@@ -2156,7 +2232,7 @@ func (s *store) RemoveNames(id string, names []string) error {
 }
 
 func (s *store) updateNames(id string, names []string, op updateNameOperation) error {
-	deduped := dedupeNames(names)
+	deduped := dedupeStrings(names)
 
 	layerFound := false
 	if err := s.writeToLayerStore(func(rlstore rwLayerStore) error {
@@ -2188,11 +2264,12 @@ func (s *store) updateNames(id string, names []string, op updateNameOperation) e
 		if i, err := store.Get(id); err == nil {
 			// "pull up" the image so that we can change its names list
 			options := ImageOptions{
-				Metadata:     i.Metadata,
 				CreationDate: i.Created,
 				Digest:       i.Digest,
 				Digests:      copyDigestSlice(i.Digests),
+				Metadata:     i.Metadata,
 				NamesHistory: copyStringSlice(i.NamesHistory),
+				Flags:        copyStringInterfaceMap(i.Flags),
 			}
 			for _, key := range i.BigDataNames {
 				data, err := store.BigData(id, key)

vendor/github.com/containers/storage/utils.go

@@ -70,5 +70,5 @@ func applyNameOperation(oldNames []string, opParameters []string, op updateNameO
 	default:
 		return result, errInvalidUpdateNameOperation
 	}
-	return dedupeNames(result), nil
+	return dedupeStrings(result), nil
 }

vendor/github.com/klauspost/compress/README.md

@@ -615,6 +615,8 @@ Here are other packages of good quality and pure Go (no cgo wrappers or autoconv
 * [github.com/pierrec/lz4](https://github.com/pierrec/lz4) - strong multithreaded LZ4 compression.
 * [github.com/cosnicolaou/pbzip2](https://github.com/cosnicolaou/pbzip2) - multithreaded bzip2 decompression.
 * [github.com/dsnet/compress](https://github.com/dsnet/compress) - brotli decompression, bzip2 writer.
+* [github.com/ronanh/intcomp](https://github.com/ronanh/intcomp) - Integer compression.
+* [github.com/spenczar/fpc](https://github.com/spenczar/fpc) - Float compression.
 
 # license
 

vendor/github.com/klauspost/compress/zstd/blockenc.go

@@ -473,7 +473,7 @@ func (b *blockEnc) encode(org []byte, raw, rawAllLits bool) error {
 		return b.encodeLits(b.literals, rawAllLits)
 	}
 	// We want some difference to at least account for the headers.
-	saved := b.size - len(b.literals) - (b.size >> 5)
+	saved := b.size - len(b.literals) - (b.size >> 6)
 	if saved < 16 {
 		if org == nil {
 			return errIncompressible
@@ -779,10 +779,13 @@ func (b *blockEnc) encode(org []byte, raw, rawAllLits bool) error {
 	}
 	b.output = wr.out
 
-	if len(b.output)-3-bhOffset >= b.size {
 	// Maybe even add a bigger margin.
+	if len(b.output)-3-bhOffset >= b.size {
+		// Discard and encode as raw block.
+		b.output = b.encodeRawTo(b.output[:bhOffset], org)
+		b.popOffsets()
 		b.litEnc.Reuse = huff0.ReusePolicyNone
-		return errIncompressible
+		return nil
 	}
 
 	// Size is output minus block header.

vendor/github.com/klauspost/compress/zstd/decoder.go

@@ -455,12 +455,7 @@ func (d *Decoder) nextBlock(blocking bool) (ok bool) {
 	}
 
 	if len(next.b) > 0 {
-		n, err := d.current.crc.Write(next.b)
-		if err == nil {
-			if n != len(next.b) {
-				d.current.err = io.ErrShortWrite
-			}
-		}
+		d.current.crc.Write(next.b)
 	}
 	if next.err == nil && next.d != nil && next.d.hasCRC {
 		got := uint32(d.current.crc.Sum64())

vendor/github.com/klauspost/compress/zstd/enc_best.go

@@ -34,7 +34,7 @@ type match struct {
 	est    int32
 }
 
-const highScore = 25000
+const highScore = maxMatchLen * 8
 
 // estBits will estimate output bits from predefined tables.
 func (m *match) estBits(bitsPerByte int32) {
@@ -159,7 +159,6 @@ func (e *bestFastEncoder) Encode(blk *blockEnc, src []byte) {
 
 	// nextEmit is where in src the next emitLiteral should start from.
 	nextEmit := s
-	cv := load6432(src, s)
 
 	// Relative offsets
 	offset1 := int32(blk.recentOffsets[0])
@@ -173,7 +172,6 @@ func (e *bestFastEncoder) Encode(blk *blockEnc, src []byte) {
 		blk.literals = append(blk.literals, src[nextEmit:until]...)
 		s.litLen = uint32(until - nextEmit)
 	}
-	_ = addLiterals
 
 	if debugEncoder {
 		println("recent offsets:", blk.recentOffsets)
@@ -188,7 +186,9 @@ encodeLoop:
 			panic("offset0 was 0")
 		}
 
-		const goodEnough = 100
+		const goodEnough = 250
+
+		cv := load6432(src, s)
 
 		nextHashL := hashLen(cv, bestLongTableBits, bestLongLen)
 		nextHashS := hashLen(cv, bestShortTableBits, bestShortLen)
@@ -201,11 +201,45 @@ encodeLoop:
 				return
 			}
 			if debugAsserts {
+				if offset <= 0 {
+					panic(offset)
+				}
 				if !bytes.Equal(src[s:s+4], src[offset:offset+4]) {
 					panic(fmt.Sprintf("first match mismatch: %v != %v, first: %08x", src[s:s+4], src[offset:offset+4], first))
 				}
 			}
-			cand := match{offset: offset, s: s, length: 4 + e.matchlen(s+4, offset+4, src), rep: rep}
+			// Try to quick reject if we already have a long match.
+			if m.length > 16 {
+				left := len(src) - int(m.s+m.length)
+				// If we are too close to the end, keep as is.
+				if left <= 0 {
+					return
+				}
+				checkLen := m.length - (s - m.s) - 8
+				if left > 2 && checkLen > 4 {
+					// Check 4 bytes, 4 bytes from the end of the current match.
+					a := load3232(src, offset+checkLen)
+					b := load3232(src, s+checkLen)
+					if a != b {
+						return
+					}
+				}
+			}
+			l := 4 + e.matchlen(s+4, offset+4, src)
+			if rep < 0 {
+				// Extend candidate match backwards as far as possible.
+				tMin := s - e.maxMatchOff
+				if tMin < 0 {
+					tMin = 0
+				}
+				for offset > tMin && s > nextEmit && src[offset-1] == src[s-1] && l < maxMatchLength {
+					s--
+					offset--
+					l++
+				}
+			}
+
+			cand := match{offset: offset, s: s, length: l, rep: rep}
 			cand.estBits(bitsPerByte)
 			if m.est >= highScore || cand.est-m.est+(cand.s-m.s)*bitsPerByte>>10 < 0 {
 				*m = cand
@@ -219,12 +253,23 @@ encodeLoop:
 		improve(&best, candidateS.prev-e.cur, s, uint32(cv), -1)
 
 		if canRepeat && best.length < goodEnough {
+			if s == nextEmit {
+				// Check repeats straight after a match.
+				improve(&best, s-offset2, s, uint32(cv), 1|4)
+				improve(&best, s-offset3, s, uint32(cv), 2|4)
+				if offset1 > 1 {
+					improve(&best, s-(offset1-1), s, uint32(cv), 3|4)
+				}
+			}
+
+			// If either no match or a non-repeat match, check at + 1
+			if best.rep <= 0 {
 				cv32 := uint32(cv >> 8)
 				spp := s + 1
 				improve(&best, spp-offset1, spp, cv32, 1)
 				improve(&best, spp-offset2, spp, cv32, 2)
 				improve(&best, spp-offset3, spp, cv32, 3)
-			if best.length > 0 {
+				if best.rep < 0 {
 					cv32 = uint32(cv >> 24)
 					spp += 2
 					improve(&best, spp-offset1, spp, cv32, 1)
@@ -232,6 +277,7 @@ encodeLoop:
 					improve(&best, spp-offset3, spp, cv32, 3)
 				}
 			}
+		}
 		// Load next and check...
 		e.longTable[nextHashL] = prevEntry{offset: s + e.cur, prev: candidateL.offset}
 		e.table[nextHashS] = prevEntry{offset: s + e.cur, prev: candidateS.offset}
@@ -244,41 +290,44 @@ encodeLoop:
 				if s >= sLimit {
 					break encodeLoop
 				}
-				cv = load6432(src, s)
 				continue
 			}
 
-			s++
 			candidateS = e.table[hashLen(cv>>8, bestShortTableBits, bestShortLen)]
-			cv = load6432(src, s)
-			cv2 := load6432(src, s+1)
+			cv = load6432(src, s+1)
+			cv2 := load6432(src, s+2)
 			candidateL = e.longTable[hashLen(cv, bestLongTableBits, bestLongLen)]
 			candidateL2 := e.longTable[hashLen(cv2, bestLongTableBits, bestLongLen)]
 
 			// Short at s+1
-			improve(&best, candidateS.offset-e.cur, s, uint32(cv), -1)
+			improve(&best, candidateS.offset-e.cur, s+1, uint32(cv), -1)
 			// Long at s+1, s+2
-			improve(&best, candidateL.offset-e.cur, s, uint32(cv), -1)
-			improve(&best, candidateL.prev-e.cur, s, uint32(cv), -1)
-			improve(&best, candidateL2.offset-e.cur, s+1, uint32(cv2), -1)
-			improve(&best, candidateL2.prev-e.cur, s+1, uint32(cv2), -1)
+			improve(&best, candidateL.offset-e.cur, s+1, uint32(cv), -1)
+			improve(&best, candidateL.prev-e.cur, s+1, uint32(cv), -1)
+			improve(&best, candidateL2.offset-e.cur, s+2, uint32(cv2), -1)
+			improve(&best, candidateL2.prev-e.cur, s+2, uint32(cv2), -1)
 			if false {
 				// Short at s+3.
 				// Too often worse...
-				improve(&best, e.table[hashLen(cv2>>8, bestShortTableBits, bestShortLen)].offset-e.cur, s+2, uint32(cv2>>8), -1)
+				improve(&best, e.table[hashLen(cv2>>8, bestShortTableBits, bestShortLen)].offset-e.cur, s+3, uint32(cv2>>8), -1)
 			}
+
+			// Start check at a fixed offset to allow for a few mismatches.
+			// For this compression level 2 yields the best results.
+			// We cannot do this if we have already indexed this position.
+			const skipBeginning = 2
+			if best.s > s-skipBeginning {
 				// See if we can find a better match by checking where the current best ends.
 				// Use that offset to see if we can find a better full match.
 				if sAt := best.s + best.length; sAt < sLimit {
 					nextHashL := hashLen(load6432(src, sAt), bestLongTableBits, bestLongLen)
 					candidateEnd := e.longTable[nextHashL]
-				// Start check at a fixed offset to allow for a few mismatches.
-				// For this compression level 2 yields the best results.
-				const skipBeginning = 2
-				if pos := candidateEnd.offset - e.cur - best.length + skipBeginning; pos >= 0 {
-					improve(&best, pos, best.s+skipBeginning, load3232(src, best.s+skipBeginning), -1)
-					if pos := candidateEnd.prev - e.cur - best.length + skipBeginning; pos >= 0 {
-						improve(&best, pos, best.s+skipBeginning, load3232(src, best.s+skipBeginning), -1)
+
+					if off := candidateEnd.offset - e.cur - best.length + skipBeginning; off >= 0 {
+						improve(&best, off, best.s+skipBeginning, load3232(src, best.s+skipBeginning), -1)
+						if off := candidateEnd.prev - e.cur - best.length + skipBeginning; off >= 0 {
+							improve(&best, off, best.s+skipBeginning, load3232(src, best.s+skipBeginning), -1)
+						}
 					}
 				}
 			}
@@ -292,51 +341,34 @@ encodeLoop:
 
 		// We have a match, we can store the forward value
 		if best.rep > 0 {
-			s = best.s
 			var seq seq
 			seq.matchLen = uint32(best.length - zstdMinMatch)
-
-			// We might be able to match backwards.
-			// Extend as long as we can.
-			start := best.s
-			// We end the search early, so we don't risk 0 literals
-			// and have to do special offset treatment.
-			startLimit := nextEmit + 1
-
-			tMin := s - e.maxMatchOff
-			if tMin < 0 {
-				tMin = 0
+			if debugAsserts && s <= nextEmit {
+				panic("s <= nextEmit")
 			}
-			repIndex := best.offset
-			for repIndex > tMin && start > startLimit && src[repIndex-1] == src[start-1] && seq.matchLen < maxMatchLength-zstdMinMatch-1 {
-				repIndex--
-				start--
-				seq.matchLen++
-			}
-			addLiterals(&seq, start)
+			addLiterals(&seq, best.s)
 
-			// rep 0
-			seq.offset = uint32(best.rep)
+			// Repeat. If bit 4 is set, this is a non-lit repeat.
+			seq.offset = uint32(best.rep & 3)
 			if debugSequences {
 				println("repeat sequence", seq, "next s:", s)
 			}
 			blk.sequences = append(blk.sequences, seq)
 
-			// Index match start+1 (long) -> s - 1
-			index0 := s
+			// Index old s + 1 -> s - 1
+			index0 := s + 1
 			s = best.s + best.length
 
 			nextEmit = s
 			if s >= sLimit {
 				if debugEncoder {
 					println("repeat ended", s, best.length)
-
 				}
 				break encodeLoop
 			}
 			// Index skipped...
 			off := index0 + e.cur
-			for index0 < s-1 {
+			for index0 < s {
 				cv0 := load6432(src, index0)
 				h0 := hashLen(cv0, bestLongTableBits, bestLongLen)
 				h1 := hashLen(cv0, bestShortTableBits, bestShortLen)
@@ -346,17 +378,19 @@ encodeLoop:
 				index0++
 			}
 			switch best.rep {
-			case 2:
+			case 2, 4 | 1:
 				offset1, offset2 = offset2, offset1
-			case 3:
+			case 3, 4 | 2:
 				offset1, offset2, offset3 = offset3, offset1, offset2
+			case 4 | 3:
+				offset1, offset2, offset3 = offset1-1, offset1, offset2
 			}
-			cv = load6432(src, s)
 			continue
 		}
 
 		// A 4-byte match has been found. Update recent offsets.
 		// We'll later see if more than 4 bytes.
+		index0 := s + 1
 		s = best.s
 		t := best.offset
 		offset1, offset2, offset3 = s-t, offset1, offset2
@@ -369,22 +403,9 @@ encodeLoop:
 			panic("invalid offset")
 		}
 
-		// Extend the n-byte match as long as possible.
-		l := best.length
-
-		// Extend backwards
-		tMin := s - e.maxMatchOff
-		if tMin < 0 {
-			tMin = 0
-		}
-		for t > tMin && s > nextEmit && src[t-1] == src[s-1] && l < maxMatchLength {
-			s--
-			t--
-			l++
-		}
-
 		// Write our sequence
 		var seq seq
+		l := best.length
 		seq.litLen = uint32(s - nextEmit)
 		seq.matchLen = uint32(l - zstdMinMatch)
 		if seq.litLen > 0 {
@@ -401,10 +422,8 @@ encodeLoop:
 			break encodeLoop
 		}
 
-		// Index match start+1 (long) -> s - 1
-		index0 := s - l + 1
-		// every entry
-		for index0 < s-1 {
+		// Index old s + 1 -> s - 1
+		for index0 < s {
 			cv0 := load6432(src, index0)
 			h0 := hashLen(cv0, bestLongTableBits, bestLongLen)
 			h1 := hashLen(cv0, bestShortTableBits, bestShortLen)
@@ -413,50 +432,6 @@ encodeLoop:
 			e.table[h1] = prevEntry{offset: off, prev: e.table[h1].offset}
 			index0++
 		}
-
-		cv = load6432(src, s)
-		if !canRepeat {
-			continue
-		}
-
-		// Check offset 2
-		for {
-			o2 := s - offset2
-			if load3232(src, o2) != uint32(cv) {
-				// Do regular search
-				break
-			}
-
-			// Store this, since we have it.
-			nextHashS := hashLen(cv, bestShortTableBits, bestShortLen)
-			nextHashL := hashLen(cv, bestLongTableBits, bestLongLen)
-
-			// We have at least 4 byte match.
-			// No need to check backwards. We come straight from a match
-			l := 4 + e.matchlen(s+4, o2+4, src)
-
-			e.longTable[nextHashL] = prevEntry{offset: s + e.cur, prev: e.longTable[nextHashL].offset}
-			e.table[nextHashS] = prevEntry{offset: s + e.cur, prev: e.table[nextHashS].offset}
-			seq.matchLen = uint32(l) - zstdMinMatch
-			seq.litLen = 0
-
-			// Since litlen is always 0, this is offset 1.
-			seq.offset = 1
-			s += l
-			nextEmit = s
-			if debugSequences {
-				println("sequence", seq, "next s:", s)
-			}
-			blk.sequences = append(blk.sequences, seq)
-
-			// Swap offset 1 and 2.
-			offset1, offset2 = offset2, offset1
-			if s >= sLimit {
-				// Finished
-				break encodeLoop
-			}
-			cv = load6432(src, s)
-		}
 	}
 
 	if int(nextEmit) < len(src) {

vendor/github.com/klauspost/compress/zstd/encoder.go

@@ -277,23 +277,9 @@ func (e *Encoder) nextBlock(final bool) error {
 			s.eofWritten = true
 		}
 
-		err := errIncompressible
-		// If we got the exact same number of literals as input,
-		// assume the literals cannot be compressed.
-		if len(src) != len(blk.literals) || len(src) != e.o.blockSize {
-			err = blk.encode(src, e.o.noEntropy, !e.o.allLitEntropy)
-		}
-		switch err {
-		case errIncompressible:
-			if debugEncoder {
-				println("Storing incompressible block as raw")
-			}
-			blk.encodeRaw(src)
-			// In fast mode, we do not transfer offsets, so we don't have to deal with changing the.
-		case nil:
-		default:
-			s.err = err
-			return err
+		s.err = blk.encode(src, e.o.noEntropy, !e.o.allLitEntropy)
+		if s.err != nil {
+			return s.err
 		}
 		_, s.err = s.w.Write(blk.output)
 		s.nWritten += int64(len(blk.output))
@@ -343,22 +329,8 @@ func (e *Encoder) nextBlock(final bool) error {
 				}
 				s.wWg.Done()
 			}()
-			err := errIncompressible
-			// If we got the exact same number of literals as input,
-			// assume the literals cannot be compressed.
-			if len(src) != len(blk.literals) || len(src) != e.o.blockSize {
-				err = blk.encode(src, e.o.noEntropy, !e.o.allLitEntropy)
-			}
-			switch err {
-			case errIncompressible:
-				if debugEncoder {
-					println("Storing incompressible block as raw")
-				}
-				blk.encodeRaw(src)
-				// In fast mode, we do not transfer offsets, so we don't have to deal with changing the.
-			case nil:
-			default:
-				s.writeErr = err
+			s.writeErr = blk.encode(src, e.o.noEntropy, !e.o.allLitEntropy)
+			if s.writeErr != nil {
 				return
 			}
 			_, s.writeErr = s.w.Write(blk.output)
@@ -568,25 +540,15 @@ func (e *Encoder) EncodeAll(src, dst []byte) []byte {
 
 		// If we got the exact same number of literals as input,
 		// assume the literals cannot be compressed.
-		err := errIncompressible
 		oldout := blk.output
-		if len(blk.literals) != len(src) || len(src) != e.o.blockSize {
 		// Output directly to dst
 		blk.output = dst
-			err = blk.encode(src, e.o.noEntropy, !e.o.allLitEntropy)
-		}
 
-		switch err {
-		case errIncompressible:
-			if debugEncoder {
-				println("Storing incompressible block as raw")
-			}
-			dst = blk.encodeRawTo(dst, src)
-		case nil:
-			dst = blk.output
-		default:
+		err := blk.encode(src, e.o.noEntropy, !e.o.allLitEntropy)
+		if err != nil {
 			panic(err)
 		}
+		dst = blk.output
 		blk.output = oldout
 	} else {
 		enc.Reset(e.o.dict, false)
@@ -605,25 +567,11 @@ func (e *Encoder) EncodeAll(src, dst []byte) []byte {
 			if len(src) == 0 {
 				blk.last = true
 			}
-			err := errIncompressible
-			// If we got the exact same number of literals as input,
-			// assume the literals cannot be compressed.
-			if len(blk.literals) != len(todo) || len(todo) != e.o.blockSize {
-				err = blk.encode(todo, e.o.noEntropy, !e.o.allLitEntropy)
-			}
-
-			switch err {
-			case errIncompressible:
-				if debugEncoder {
-					println("Storing incompressible block as raw")
-				}
-				dst = blk.encodeRawTo(dst, todo)
-				blk.popOffsets()
-			case nil:
-				dst = append(dst, blk.output...)
-			default:
+			err := blk.encode(todo, e.o.noEntropy, !e.o.allLitEntropy)
+			if err != nil {
 				panic(err)
 			}
+			dst = append(dst, blk.output...)
 			blk.reset(nil)
 		}
 	}

vendor/github.com/klauspost/compress/zstd/encoder_options.go

@@ -39,7 +39,7 @@ func (o *encoderOptions) setDefault() {
 		blockSize:     maxCompressedBlockSize,
 		windowSize:    8 << 20,
 		level:         SpeedDefault,
-		allLitEntropy: true,
+		allLitEntropy: false,
 		lowMem:        false,
 	}
 }
@@ -238,7 +238,7 @@ func WithEncoderLevel(l EncoderLevel) EOption {
 			}
 		}
 		if !o.customALEntropy {
-			o.allLitEntropy = l > SpeedFastest
+			o.allLitEntropy = l > SpeedDefault
 		}
 
 		return nil

vendor/github.com/klauspost/compress/zstd/framedec.go

@@ -293,13 +293,9 @@ func (d *frameDec) next(block *blockDec) error {
 	return nil
 }
 
-// checkCRC will check the checksum if the frame has one.
+// checkCRC will check the checksum, assuming the frame has one.
 // Will return ErrCRCMismatch if crc check failed, otherwise nil.
 func (d *frameDec) checkCRC() error {
-	if !d.HasCheckSum {
-		return nil
-	}
-
 	// We can overwrite upper tmp now
 	buf, err := d.rawInput.readSmall(4)
 	if err != nil {
@@ -307,10 +303,6 @@ func (d *frameDec) checkCRC() error {
 		return err
 	}
 
-	if d.o.ignoreChecksum {
-		return nil
-	}
-
 	want := binary.LittleEndian.Uint32(buf[:4])
 	got := uint32(d.crc.Sum64())
 
@@ -326,17 +318,13 @@ func (d *frameDec) checkCRC() error {
 	return nil
 }
 
-// consumeCRC reads the checksum data if the frame has one.
+// consumeCRC skips over the checksum, assuming the frame has one.
 func (d *frameDec) consumeCRC() error {
-	if d.HasCheckSum {
 	_, err := d.rawInput.readSmall(4)
 	if err != nil {
 		println("CRC missing?", err)
+	}
 	return err
-		}
-	}
-
-	return nil
 }
 
 // runDecoder will run the decoder for the remainder of the frame.
@@ -415,18 +403,11 @@ func (d *frameDec) runDecoder(dst []byte, dec *blockDec) ([]byte, error) {
 			if d.o.ignoreChecksum {
 				err = d.consumeCRC()
 			} else {
-				var n int
-				n, err = d.crc.Write(dst[crcStart:])
-				if err == nil {
-					if n != len(dst)-crcStart {
-						err = io.ErrShortWrite
-					} else {
+				d.crc.Write(dst[crcStart:])
 				err = d.checkCRC()
 			}
 		}
 	}
-		}
-	}
 	d.history.b = saved
 	return dst, err
 }

vendor/github.com/klauspost/compress/zstd/seqdec.go

@@ -236,9 +236,12 @@ func (s *sequenceDecs) decodeSync(hist []byte) error {
 		maxBlockSize = s.windowSize
 	}
 
+	if debugDecoder {
+		println("decodeSync: decoding", seqs, "sequences", br.remain(), "bits remain on stream")
+	}
 	for i := seqs - 1; i >= 0; i-- {
 		if br.overread() {
-			printf("reading sequence %d, exceeded available data\n", seqs-i)
+			printf("reading sequence %d, exceeded available data. Overread by %d\n", seqs-i, -br.remain())
 			return io.ErrUnexpectedEOF
 		}
 		var ll, mo, ml int

vendor/github.com/klauspost/compress/zstd/seqdec_amd64.go

@@ -5,6 +5,7 @@ package zstd
 
 import (
 	"fmt"
+	"io"
 
 	"github.com/klauspost/compress/internal/cpuinfo"
 )
@@ -134,6 +135,9 @@ func (s *sequenceDecs) decodeSyncSimple(hist []byte) (bool, error) {
 		return true, fmt.Errorf("unexpected literal count, want %d bytes, but only %d is available",
 			ctx.ll, ctx.litRemain+ctx.ll)
 
+	case errorOverread:
+		return true, io.ErrUnexpectedEOF
+
 	case errorNotEnoughSpace:
 		size := ctx.outPosition + ctx.ll + ctx.ml
 		if debugDecoder {
@@ -202,6 +206,9 @@ const errorNotEnoughLiterals = 4
 // error reported when capacity of `out` is too small
 const errorNotEnoughSpace = 5
 
+// error reported when bits are overread.
+const errorOverread = 6
+
 // sequenceDecs_decode implements the main loop of sequenceDecs in x86 asm.
 //
 // Please refer to seqdec_generic.go for the reference implementation.
@@ -247,6 +254,10 @@ func (s *sequenceDecs) decode(seqs []seqVals) error {
 		litRemain: len(s.literals),
 	}
 
+	if debugDecoder {
+		println("decode: decoding", len(seqs), "sequences", br.remain(), "bits remain on stream")
+	}
+
 	s.seqSize = 0
 	lte56bits := s.maxBits+s.offsets.fse.actualTableLog+s.matchLengths.fse.actualTableLog+s.litLengths.fse.actualTableLog <= 56
 	var errCode int
@@ -277,6 +288,8 @@ func (s *sequenceDecs) decode(seqs []seqVals) error {
 		case errorNotEnoughLiterals:
 			ll := ctx.seqs[i].ll
 			return fmt.Errorf("unexpected literal count, want %d bytes, but only %d is available", ll, ctx.litRemain+ll)
+		case errorOverread:
+			return io.ErrUnexpectedEOF
 		}
 
 		return fmt.Errorf("sequenceDecs_decode_amd64 returned erronous code %d", errCode)
@@ -291,6 +304,9 @@ func (s *sequenceDecs) decode(seqs []seqVals) error {
 	if s.seqSize > maxBlockSize {
 		return fmt.Errorf("output bigger than max block size (%d)", maxBlockSize)
 	}
+	if debugDecoder {
+		println("decode: ", br.remain(), "bits remain on stream. code:", errCode)
+	}
 	err := br.close()
 	if err != nil {
 		printf("Closing sequences: %v, %+v\n", err, *br)

vendor/github.com/klauspost/compress/zstd/seqdec_amd64.s

@@ -38,7 +38,7 @@ sequenceDecs_decode_amd64_main_loop:
 
 sequenceDecs_decode_amd64_fill_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decode_amd64_fill_end
+	JLE     sequenceDecs_decode_amd64_fill_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decode_amd64_fill_end
 	SHLQ    $0x08, DX
@@ -49,6 +49,10 @@ sequenceDecs_decode_amd64_fill_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decode_amd64_fill_byte_by_byte
 
+sequenceDecs_decode_amd64_fill_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decode_amd64_fill_end:
 	// Update offset
 	MOVQ  R9, AX
@@ -105,7 +109,7 @@ sequenceDecs_decode_amd64_ml_update_zero:
 
 sequenceDecs_decode_amd64_fill_2_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decode_amd64_fill_2_end
+	JLE     sequenceDecs_decode_amd64_fill_2_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decode_amd64_fill_2_end
 	SHLQ    $0x08, DX
@@ -116,6 +120,10 @@ sequenceDecs_decode_amd64_fill_2_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decode_amd64_fill_2_byte_by_byte
 
+sequenceDecs_decode_amd64_fill_2_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decode_amd64_fill_2_end:
 	// Update literal length
 	MOVQ  DI, AX
@@ -320,6 +328,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 // func sequenceDecs_decode_56_amd64(s *sequenceDecs, br *bitReader, ctx *decodeAsmContext) int
 // Requires: CMOV
 TEXT ·sequenceDecs_decode_56_amd64(SB), $8-32
@@ -356,7 +369,7 @@ sequenceDecs_decode_56_amd64_main_loop:
 
 sequenceDecs_decode_56_amd64_fill_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decode_56_amd64_fill_end
+	JLE     sequenceDecs_decode_56_amd64_fill_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decode_56_amd64_fill_end
 	SHLQ    $0x08, DX
@@ -367,6 +380,10 @@ sequenceDecs_decode_56_amd64_fill_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decode_56_amd64_fill_byte_by_byte
 
+sequenceDecs_decode_56_amd64_fill_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decode_56_amd64_fill_end:
 	// Update offset
 	MOVQ  R9, AX
@@ -613,6 +630,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 // func sequenceDecs_decode_bmi2(s *sequenceDecs, br *bitReader, ctx *decodeAsmContext) int
 // Requires: BMI, BMI2, CMOV
 TEXT ·sequenceDecs_decode_bmi2(SB), $8-32
@@ -649,7 +671,7 @@ sequenceDecs_decode_bmi2_main_loop:
 
 sequenceDecs_decode_bmi2_fill_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decode_bmi2_fill_end
+	JLE     sequenceDecs_decode_bmi2_fill_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decode_bmi2_fill_end
 	SHLQ    $0x08, AX
@@ -660,6 +682,10 @@ sequenceDecs_decode_bmi2_fill_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decode_bmi2_fill_byte_by_byte
 
+sequenceDecs_decode_bmi2_fill_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decode_bmi2_fill_end:
 	// Update offset
 	MOVQ   $0x00000808, CX
@@ -700,7 +726,7 @@ sequenceDecs_decode_bmi2_fill_end:
 
 sequenceDecs_decode_bmi2_fill_2_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decode_bmi2_fill_2_end
+	JLE     sequenceDecs_decode_bmi2_fill_2_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decode_bmi2_fill_2_end
 	SHLQ    $0x08, AX
@@ -711,6 +737,10 @@ sequenceDecs_decode_bmi2_fill_2_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decode_bmi2_fill_2_byte_by_byte
 
+sequenceDecs_decode_bmi2_fill_2_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decode_bmi2_fill_2_end:
 	// Update literal length
 	MOVQ   $0x00000808, CX
@@ -889,6 +919,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 // func sequenceDecs_decode_56_bmi2(s *sequenceDecs, br *bitReader, ctx *decodeAsmContext) int
 // Requires: BMI, BMI2, CMOV
 TEXT ·sequenceDecs_decode_56_bmi2(SB), $8-32
@@ -925,7 +960,7 @@ sequenceDecs_decode_56_bmi2_main_loop:
 
 sequenceDecs_decode_56_bmi2_fill_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decode_56_bmi2_fill_end
+	JLE     sequenceDecs_decode_56_bmi2_fill_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decode_56_bmi2_fill_end
 	SHLQ    $0x08, AX
@@ -936,6 +971,10 @@ sequenceDecs_decode_56_bmi2_fill_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decode_56_bmi2_fill_byte_by_byte
 
+sequenceDecs_decode_56_bmi2_fill_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decode_56_bmi2_fill_end:
 	// Update offset
 	MOVQ   $0x00000808, CX
@@ -1140,6 +1179,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 // func sequenceDecs_executeSimple_amd64(ctx *executeAsmContext) bool
 // Requires: SSE
 TEXT ·sequenceDecs_executeSimple_amd64(SB), $8-9
@@ -1804,7 +1848,7 @@ sequenceDecs_decodeSync_amd64_main_loop:
 
 sequenceDecs_decodeSync_amd64_fill_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decodeSync_amd64_fill_end
+	JLE     sequenceDecs_decodeSync_amd64_fill_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decodeSync_amd64_fill_end
 	SHLQ    $0x08, DX
@@ -1815,6 +1859,10 @@ sequenceDecs_decodeSync_amd64_fill_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decodeSync_amd64_fill_byte_by_byte
 
+sequenceDecs_decodeSync_amd64_fill_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_amd64_fill_end:
 	// Update offset
 	MOVQ  R9, AX
@@ -1871,7 +1919,7 @@ sequenceDecs_decodeSync_amd64_ml_update_zero:
 
 sequenceDecs_decodeSync_amd64_fill_2_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decodeSync_amd64_fill_2_end
+	JLE     sequenceDecs_decodeSync_amd64_fill_2_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decodeSync_amd64_fill_2_end
 	SHLQ    $0x08, DX
@@ -1882,6 +1930,10 @@ sequenceDecs_decodeSync_amd64_fill_2_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decodeSync_amd64_fill_2_byte_by_byte
 
+sequenceDecs_decodeSync_amd64_fill_2_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_amd64_fill_2_end:
 	// Update literal length
 	MOVQ  DI, AX
@@ -2291,6 +2343,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 	// Return with not enough output space error
 error_not_enough_space:
 	MOVQ ctx+16(FP), AX
@@ -2356,7 +2413,7 @@ sequenceDecs_decodeSync_bmi2_main_loop:
 
 sequenceDecs_decodeSync_bmi2_fill_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decodeSync_bmi2_fill_end
+	JLE     sequenceDecs_decodeSync_bmi2_fill_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decodeSync_bmi2_fill_end
 	SHLQ    $0x08, AX
@@ -2367,6 +2424,10 @@ sequenceDecs_decodeSync_bmi2_fill_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decodeSync_bmi2_fill_byte_by_byte
 
+sequenceDecs_decodeSync_bmi2_fill_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_bmi2_fill_end:
 	// Update offset
 	MOVQ   $0x00000808, CX
@@ -2407,7 +2468,7 @@ sequenceDecs_decodeSync_bmi2_fill_end:
 
 sequenceDecs_decodeSync_bmi2_fill_2_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decodeSync_bmi2_fill_2_end
+	JLE     sequenceDecs_decodeSync_bmi2_fill_2_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decodeSync_bmi2_fill_2_end
 	SHLQ    $0x08, AX
@@ -2418,6 +2479,10 @@ sequenceDecs_decodeSync_bmi2_fill_2_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decodeSync_bmi2_fill_2_byte_by_byte
 
+sequenceDecs_decodeSync_bmi2_fill_2_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_bmi2_fill_2_end:
 	// Update literal length
 	MOVQ   $0x00000808, CX
@@ -2801,6 +2866,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 	// Return with not enough output space error
 error_not_enough_space:
 	MOVQ ctx+16(FP), AX
@@ -2866,7 +2936,7 @@ sequenceDecs_decodeSync_safe_amd64_main_loop:
 
 sequenceDecs_decodeSync_safe_amd64_fill_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decodeSync_safe_amd64_fill_end
+	JLE     sequenceDecs_decodeSync_safe_amd64_fill_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decodeSync_safe_amd64_fill_end
 	SHLQ    $0x08, DX
@@ -2877,6 +2947,10 @@ sequenceDecs_decodeSync_safe_amd64_fill_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decodeSync_safe_amd64_fill_byte_by_byte
 
+sequenceDecs_decodeSync_safe_amd64_fill_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_safe_amd64_fill_end:
 	// Update offset
 	MOVQ  R9, AX
@@ -2933,7 +3007,7 @@ sequenceDecs_decodeSync_safe_amd64_ml_update_zero:
 
 sequenceDecs_decodeSync_safe_amd64_fill_2_byte_by_byte:
 	CMPQ    SI, $0x00
-	JLE     sequenceDecs_decodeSync_safe_amd64_fill_2_end
+	JLE     sequenceDecs_decodeSync_safe_amd64_fill_2_check_overread
 	CMPQ    BX, $0x07
 	JLE     sequenceDecs_decodeSync_safe_amd64_fill_2_end
 	SHLQ    $0x08, DX
@@ -2944,6 +3018,10 @@ sequenceDecs_decodeSync_safe_amd64_fill_2_byte_by_byte:
 	ORQ     AX, DX
 	JMP     sequenceDecs_decodeSync_safe_amd64_fill_2_byte_by_byte
 
+sequenceDecs_decodeSync_safe_amd64_fill_2_check_overread:
+	CMPQ BX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_safe_amd64_fill_2_end:
 	// Update literal length
 	MOVQ  DI, AX
@@ -3455,6 +3533,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 	// Return with not enough output space error
 error_not_enough_space:
 	MOVQ ctx+16(FP), AX
@@ -3520,7 +3603,7 @@ sequenceDecs_decodeSync_safe_bmi2_main_loop:
 
 sequenceDecs_decodeSync_safe_bmi2_fill_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decodeSync_safe_bmi2_fill_end
+	JLE     sequenceDecs_decodeSync_safe_bmi2_fill_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decodeSync_safe_bmi2_fill_end
 	SHLQ    $0x08, AX
@@ -3531,6 +3614,10 @@ sequenceDecs_decodeSync_safe_bmi2_fill_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decodeSync_safe_bmi2_fill_byte_by_byte
 
+sequenceDecs_decodeSync_safe_bmi2_fill_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_safe_bmi2_fill_end:
 	// Update offset
 	MOVQ   $0x00000808, CX
@@ -3571,7 +3658,7 @@ sequenceDecs_decodeSync_safe_bmi2_fill_end:
 
 sequenceDecs_decodeSync_safe_bmi2_fill_2_byte_by_byte:
 	CMPQ    BX, $0x00
-	JLE     sequenceDecs_decodeSync_safe_bmi2_fill_2_end
+	JLE     sequenceDecs_decodeSync_safe_bmi2_fill_2_check_overread
 	CMPQ    DX, $0x07
 	JLE     sequenceDecs_decodeSync_safe_bmi2_fill_2_end
 	SHLQ    $0x08, AX
@@ -3582,6 +3669,10 @@ sequenceDecs_decodeSync_safe_bmi2_fill_2_byte_by_byte:
 	ORQ     CX, AX
 	JMP     sequenceDecs_decodeSync_safe_bmi2_fill_2_byte_by_byte
 
+sequenceDecs_decodeSync_safe_bmi2_fill_2_check_overread:
+	CMPQ DX, $0x40
+	JA   error_overread
+
 sequenceDecs_decodeSync_safe_bmi2_fill_2_end:
 	// Update literal length
 	MOVQ   $0x00000808, CX
@@ -4067,6 +4158,11 @@ error_not_enough_literals:
 	MOVQ $0x00000004, ret+24(FP)
 	RET
 
+	// Return with overread error
+error_overread:
+	MOVQ $0x00000006, ret+24(FP)
+	RET
+
 	// Return with not enough output space error
 error_not_enough_space:
 	MOVQ ctx+16(FP), AX

vendor/github.com/klauspost/compress/zstd/zstd.go

@@ -128,11 +128,11 @@ func matchLen(a, b []byte) (n int) {
 }
 
 func load3232(b []byte, i int32) uint32 {
-	return binary.LittleEndian.Uint32(b[i:])
+	return binary.LittleEndian.Uint32(b[:len(b):len(b)][i:])
 }
 
 func load6432(b []byte, i int32) uint64 {
-	return binary.LittleEndian.Uint64(b[i:])
+	return binary.LittleEndian.Uint64(b[:len(b):len(b)][i:])
 }
 
 type byter interface {

vendor/modules.txt

@@ -150,7 +150,7 @@ github.com/containers/ocicrypt/keywrap/pkcs7
 github.com/containers/ocicrypt/spec
 github.com/containers/ocicrypt/utils
 github.com/containers/ocicrypt/utils/keyprovider
-# github.com/containers/storage v1.46.0
+# github.com/containers/storage v1.46.1
 ## explicit; go 1.18
 github.com/containers/storage
 github.com/containers/storage/drivers
@@ -375,7 +375,7 @@ github.com/josharian/intern
 # github.com/json-iterator/go v1.1.12
 ## explicit; go 1.12
 github.com/json-iterator/go
-# github.com/klauspost/compress v1.16.3
+# github.com/klauspost/compress v1.16.4
 ## explicit; go 1.18
 github.com/klauspost/compress
 github.com/klauspost/compress/flate