From ab3f5ff3045e15cf374a0251987b9e6fcdcabb4d Mon Sep 17 00:00:00 2001
From: Tonis Tiigi <tonistiigi@gmail.com>
Date: Tue, 21 Jul 2026 19:15:03 -0700
Subject: [PATCH] Align ttrpc v1.2.9 and sys/mount v0.3.5 with Moby versions

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
---
 go.mod                                        |   4 +-
 go.sum                                        |   8 +-
 vendor/github.com/containerd/ttrpc/Makefile   |  37 ++---
 .../containerd/ttrpc/Protobuild.toml          |  28 ----
 vendor/github.com/containerd/ttrpc/README.md  |   4 -
 .../github.com/containerd/ttrpc/buf.gen.yaml  |  11 ++
 vendor/github.com/containerd/ttrpc/buf.lock   |   6 +
 vendor/github.com/containerd/ttrpc/buf.yaml   |  10 ++
 vendor/github.com/containerd/ttrpc/client.go  |   8 +-
 vendor/github.com/containerd/ttrpc/errors.go  |   6 +
 .../github.com/containerd/ttrpc/request.pb.go | 139 +++++++++---------
 .../github.com/containerd/ttrpc/request.proto |   4 +-
 vendor/github.com/containerd/ttrpc/server.go  |   9 +-
 .../github.com/containerd/ttrpc/services.go   |  24 ++-
 vendor/github.com/containerd/ttrpc/stream.go  |  24 ++-
 vendor/github.com/containerd/ttrpc/test.proto |  16 --
 vendor/modules.txt                            |   6 +-
 17 files changed, 175 insertions(+), 169 deletions(-)
 delete mode 100644 vendor/github.com/containerd/ttrpc/Protobuild.toml
 create mode 100644 vendor/github.com/containerd/ttrpc/buf.gen.yaml
 create mode 100644 vendor/github.com/containerd/ttrpc/buf.lock
 create mode 100644 vendor/github.com/containerd/ttrpc/buf.yaml
 delete mode 100644 vendor/github.com/containerd/ttrpc/test.proto

diff --git a/go.mod b/go.mod
index 65c15ac8f..d4e8446c7 100644
--- a/go.mod
+++ b/go.mod
@@ -145,7 +145,7 @@ require (
 	github.com/containerd/errdefs/pkg v0.3.0 // indirect
 	github.com/containerd/fifo v1.1.0 // indirect
 	github.com/containerd/plugin v1.1.0 // indirect
-	github.com/containerd/ttrpc v1.2.8 // indirect
+	github.com/containerd/ttrpc v1.2.9 // indirect
 	github.com/containernetworking/cni v1.3.0 // indirect
 	github.com/cyberphone/json-canonicalization v0.0.0-20241213102144-19d51d7fe467 // indirect
 	github.com/cyphar/filepath-securejoin v0.6.0 // indirect
@@ -195,7 +195,7 @@ require (
 	github.com/in-toto/attestation v1.2.0 // indirect
 	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/moby/sys/capability v0.4.0 // indirect
-	github.com/moby/sys/mount v0.3.5-0.20260529155943-fc52b7222d0b // indirect
+	github.com/moby/sys/mount v0.3.5 // indirect
 	github.com/moby/sys/sequential v0.7.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/oklog/ulid/v2 v2.1.1 // indirect
diff --git a/go.sum b/go.sum
index e1597fb3d..ba8926be6 100644
--- a/go.sum
+++ b/go.sum
@@ -165,8 +165,8 @@ github.com/containerd/stargz-snapshotter v0.18.2 h1:Ev/sxfQUjwzJQ9eqy3XzttcQ3osM
 github.com/containerd/stargz-snapshotter v0.18.2/go.mod h1:iS0a4lgCFjGbdBJNrm1jwvaMFGGnQ6PZ5Sd09i060h8=
 github.com/containerd/stargz-snapshotter/estargz v0.18.2 h1:yXkZFYIzz3eoLwlTUZKz2iQ4MrckBxJjkmD16ynUTrw=
 github.com/containerd/stargz-snapshotter/estargz v0.18.2/go.mod h1:XyVU5tcJ3PRpkA9XS2T5us6Eg35yM0214Y+wvrZTBrY=
-github.com/containerd/ttrpc v1.2.8 h1:xbVu6D4qF2jihdh9rDVOKqUMiFBQk6YctTdo1zk087Y=
-github.com/containerd/ttrpc v1.2.8/go.mod h1:wyZW2K79t4Hfcxl+GUvkZqRBzJlqFFvgEeeWXa42tyE=
+github.com/containerd/ttrpc v1.2.9 h1:ha0ak962T0s3CA/RoZ6S6xiWZQF24GrBaEpiGX1uihg=
+github.com/containerd/ttrpc v1.2.9/go.mod h1:jjtQRwXm4DL3KsHKW8vDiUOV6wO0hi6IPhmJhxU7aEs=
 github.com/containerd/typeurl/v2 v2.3.0 h1:HZHPhRWo5XMy3QGQoPrUzbW/2ckwjfweHmOwlkIrPAQ=
 github.com/containerd/typeurl/v2 v2.3.0/go.mod h1:Qk+PAdUYArVj41TnGi6rJ+48RF0PkcTc4i/taoBcK0w=
 github.com/containernetworking/cni v1.3.0 h1:v6EpN8RznAZj9765HhXQrtXgX+ECGebEYEmnuFjskwo=
@@ -430,8 +430,8 @@ github.com/moby/profiles/seccomp v0.2.3 h1:nrHNSiECQQvq4WjgceCUgJXIXUJBIswVQ133k
 github.com/moby/profiles/seccomp v0.2.3/go.mod h1:8m3qkkWZXrRsMqlUUN2zyccnYmBf3EAdQYPMVJ3NBhk=
 github.com/moby/sys/capability v0.4.0 h1:4D4mI6KlNtWMCM1Z/K0i7RV1FkX+DBDHKVJpCndZoHk=
 github.com/moby/sys/capability v0.4.0/go.mod h1:4g9IK291rVkms3LKCDOoYlnV8xKwoDTpIrNEE35Wq0I=
-github.com/moby/sys/mount v0.3.5-0.20260529155943-fc52b7222d0b h1:RB/940R3dFkU1fLLk5rBIvcv/C3HfbjqVkStfi/wlb4=
-github.com/moby/sys/mount v0.3.5-0.20260529155943-fc52b7222d0b/go.mod h1:WUQDO+/uCiCIkIztx8SrwIDVn2dtMFRBebRhpDFT71M=
+github.com/moby/sys/mount v0.3.5 h1:eS3fsZTjHaBihwjp4/+5Z3jxqLXYsbwxqpVSfFv3M00=
+github.com/moby/sys/mount v0.3.5/go.mod h1:WUQDO+/uCiCIkIztx8SrwIDVn2dtMFRBebRhpDFT71M=
 github.com/moby/sys/mountinfo v0.7.2 h1:1shs6aH5s4o5H2zQLn796ADW1wMrIwHsyJ2v9KouLrg=
 github.com/moby/sys/mountinfo v0.7.2/go.mod h1:1YOa8w8Ih7uW0wALDUgT1dTTSBrZ+HiBLGws92L2RU4=
 github.com/moby/sys/reexec v0.1.0 h1:RrBi8e0EBTLEgfruBOFcxtElzRGTEUkeIFaVXgU7wok=
diff --git a/vendor/github.com/containerd/ttrpc/Makefile b/vendor/github.com/containerd/ttrpc/Makefile
index c3a497dca..cc1c725c0 100644
--- a/vendor/github.com/containerd/ttrpc/Makefile
+++ b/vendor/github.com/containerd/ttrpc/Makefile
@@ -24,7 +24,7 @@ WHALE = "🇩"
 ONI = "👹"
 
 # Project binaries.
-COMMANDS=protoc-gen-go-ttrpc protoc-gen-gogottrpc
+COMMANDS=protoc-gen-go-ttrpc
 
 ifdef BUILDTAGS
     GO_BUILDTAGS = ${BUILDTAGS}
@@ -57,7 +57,7 @@ TESTFLAGS_PARALLEL ?= 8
 # Use this to replace `go test` with, for instance, `gotestsum`
 GOTEST ?= $(GO) test
 
-.PHONY: clean all AUTHORS build binaries test integration generate protos check-protos coverage ci check help install vendor install-protobuf install-protobuild
+.PHONY: clean all AUTHORS build binaries test integration generate protos check-protos coverage ci check help install vendor maintainer-clean
 .DEFAULT: default
 
 # Forcibly set the default goal to all, in case an include above brought in a rule definition.
@@ -65,7 +65,7 @@ GOTEST ?= $(GO) test
 
 all: binaries
 
-check: proto-fmt ## run all linters
+check: ## run all linters
 	@echo "$(WHALE) $@"
 	GOGC=75 golangci-lint run
 
@@ -78,9 +78,10 @@ generate: protos
 	@echo "$(WHALE) $@"
 	@PATH="${ROOTDIR}/bin:${PATH}" $(GO) generate -x ${PACKAGES}
 
-protos: bin/protoc-gen-gogottrpc bin/protoc-gen-go-ttrpc ## generate protobuf
+protos: bin/protoc-gen-go-ttrpc ## generate protobuf
 	@echo "$(WHALE) $@"
-	@(PATH="${ROOTDIR}/bin:${PATH}" protobuild --quiet ${PACKAGES})
+	(cd example && buf generate)
+	buf generate
 
 check-protos: protos ## check if protobufs needs to be generated again
 	@echo "$(WHALE) $@"
@@ -88,19 +89,6 @@ check-protos: protos ## check if protobufs needs to be generated again
 		((git diff | cat) && \
 		(echo "$(ONI) please run 'make protos' when making changes to proto files" && false))
 
-check-api-descriptors: protos ## check that protobuf changes aren't present.
-	@echo "$(WHALE) $@"
-	@test -z "$$(git status --short | grep ".pb.txt" | tee /dev/stderr)" || \
-		((git diff $$(find . -name '*.pb.txt') | cat) && \
-		(echo "$(ONI) please run 'make protos' when making changes to proto files and check-in the generated descriptor file changes" && false))
-
-proto-fmt: ## check format of proto files
-	@echo "$(WHALE) $@"
-	@test -z "$$(find . -name '*.proto' -type f -exec grep -Hn -e "^ " {} \; | tee /dev/stderr)" || \
-		(echo "$(ONI) please indent proto files with tabs only" && false)
-	@test -z "$$(find . -name '*.proto' -type f -exec grep -Hn "Meta meta = " {} \; | grep -v '(gogoproto.nullable) = false' | tee /dev/stderr)" || \
-		(echo "$(ONI) meta fields in proto files must have option (gogoproto.nullable) = false" && false)
-
 build: ## build the go packages
 	@echo "$(WHALE) $@"
 	@$(GO) build ${DEBUG_GO_GCFLAGS} ${GO_GCFLAGS} ${GO_BUILD_FLAGS} ${EXTRA_FLAGS} ${PACKAGES}
@@ -117,6 +105,10 @@ benchmark: ## run benchmarks tests
 	@echo "$(WHALE) $@"
 	@$(GO) test ${TESTFLAGS} -bench . -run Benchmark
 
+maintainer-clean:
+	@echo "$(WHALE) $@"
+	@find . -name '*.pb.go' -delete
+
 FORCE:
 
 define BUILD_BINARY
@@ -139,15 +131,6 @@ install: ## install binaries
 	@echo "$(WHALE) $@ $(BINPACKAGES)"
 	@$(GO) install $(BINPACKAGES)
 
-install-protobuf:
-	@echo "$(WHALE) $@"
-	@script/install-protobuf
-
-install-protobuild:
-	@echo "$(WHALE) $@"
-	@$(GO) install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1
-	@$(GO) install github.com/containerd/protobuild@14832ccc41429f5c4f81028e5af08aa233a219cf
-
 coverage: ## generate coverprofiles from the unit tests, except tests that require root
 	@echo "$(WHALE) $@"
 	@rm -f coverage.txt
diff --git a/vendor/github.com/containerd/ttrpc/Protobuild.toml b/vendor/github.com/containerd/ttrpc/Protobuild.toml
deleted file mode 100644
index 0f6ccbd1e..000000000
--- a/vendor/github.com/containerd/ttrpc/Protobuild.toml
+++ /dev/null
@@ -1,28 +0,0 @@
-version = "2"
-generators = ["go"]
-
-# Control protoc include paths. Below are usually some good defaults, but feel
-# free to try it without them if it works for your project.
-[includes]
-  # Include paths that will be added before all others. Typically, you want to
-  # treat the root of the project as an include, but this may not be necessary.
-  before = ["."]
-
-  # Paths that will be added untouched to the end of the includes. We use
-  # `/usr/local/include` to pickup the common install location of protobuf.
-  # This is the default.
-  after = ["/usr/local/include"]
-
-# This section maps protobuf imports to Go packages. These will become
-# `-M` directives in the call to the go protobuf generator.
-[packages]
-  "google/protobuf/any.proto" = "github.com/gogo/protobuf/types"
-  "proto/status.proto" = "google.golang.org/genproto/googleapis/rpc/status"
-
-[[overrides]]
-# enable ttrpc and disable fieldpath and grpc for the shim
-prefixes = ["github.com/containerd/ttrpc/integration/streaming"]
-generators = ["go", "go-ttrpc"]
-
-[overrides.parameters.go-ttrpc]
-prefix = "TTRPC"
diff --git a/vendor/github.com/containerd/ttrpc/README.md b/vendor/github.com/containerd/ttrpc/README.md
index ce95f63be..68f1639e9 100644
--- a/vendor/github.com/containerd/ttrpc/README.md
+++ b/vendor/github.com/containerd/ttrpc/README.md
@@ -25,10 +25,6 @@ See the [protocol specification](./PROTOCOL.md).
 
 # Usage
 
-Create a gogo vanity binary (see
-[`cmd/protoc-gen-gogottrpc/main.go`](cmd/protoc-gen-gogottrpc/main.go) for an
-example with the ttrpc plugin enabled.
-
 It's recommended to use [`protobuild`](https://github.com/containerd/protobuild)
 to build the protobufs for this project, but this will work with protoc
 directly, if required.
diff --git a/vendor/github.com/containerd/ttrpc/buf.gen.yaml b/vendor/github.com/containerd/ttrpc/buf.gen.yaml
new file mode 100644
index 000000000..56f872463
--- /dev/null
+++ b/vendor/github.com/containerd/ttrpc/buf.gen.yaml
@@ -0,0 +1,11 @@
+version: v2
+plugins:
+  - remote: buf.build/protocolbuffers/go:v1.28.1
+    out: .
+    opt:
+      - paths=source_relative
+  - local: bin/protoc-gen-go-ttrpc
+    out: .
+    opt:
+      - paths=source_relative
+      - prefix=TTRPC
diff --git a/vendor/github.com/containerd/ttrpc/buf.lock b/vendor/github.com/containerd/ttrpc/buf.lock
new file mode 100644
index 000000000..5df8acde6
--- /dev/null
+++ b/vendor/github.com/containerd/ttrpc/buf.lock
@@ -0,0 +1,6 @@
+# Generated by buf. DO NOT EDIT.
+version: v2
+deps:
+  - name: buf.build/googleapis/googleapis
+    commit: 004180b77378443887d3b55cabc00384
+    digest: b5:e8f475fe3330f31f5fd86ac689093bcd274e19611a09db91f41d637cb9197881ce89882b94d13a58738e53c91c6e4bae7dc1feba85f590164c975a89e25115dc
diff --git a/vendor/github.com/containerd/ttrpc/buf.yaml b/vendor/github.com/containerd/ttrpc/buf.yaml
new file mode 100644
index 000000000..cf0cc872d
--- /dev/null
+++ b/vendor/github.com/containerd/ttrpc/buf.yaml
@@ -0,0 +1,10 @@
+version: v2
+deps:
+  # For google/rpc/status.proto
+  - buf.build/googleapis/googleapis:004180b77378443887d3b55cabc00384
+modules:
+  - path: .
+    # example/ has own buf.yaml and buf.gen.yaml to not have
+    # TTRPC prefix.
+    excludes:
+      - example
diff --git a/vendor/github.com/containerd/ttrpc/client.go b/vendor/github.com/containerd/ttrpc/client.go
index be20ed489..db82b4182 100644
--- a/vendor/github.com/containerd/ttrpc/client.go
+++ b/vendor/github.com/containerd/ttrpc/client.go
@@ -386,7 +386,7 @@ func (c *Client) receiveLoop() error {
 
 // createStream creates a new stream and registers it with the client
 // Introduce stream types for multiple or single response
-func (c *Client) createStream(flags uint8, b []byte) (*stream, error) {
+func (c *Client) createStream(flags uint8, b []byte, recvBuf int) (*stream, error) {
 	// sendLock must be held across both allocation of the stream ID and sending it across the wire.
 	// This ensures that new stream IDs sent on the wire are always increasing, which is a
 	// requirement of the TTRPC protocol.
@@ -417,7 +417,7 @@ func (c *Client) createStream(flags uint8, b []byte) (*stream, error) {
 		default:
 		}
 
-		s = newStream(c.nextStreamID, c)
+		s = newStream(c.nextStreamID, c, recvBuf)
 		c.streams[s.id] = s
 		c.nextStreamID = c.nextStreamID + 2
 
@@ -517,7 +517,7 @@ func (c *Client) NewStream(ctx context.Context, desc *StreamDesc, service, metho
 	} else {
 		flags = flagRemoteClosed
 	}
-	s, err := c.createStream(flags, p)
+	s, err := c.createStream(flags, p, streamRecvBufferSize)
 	if err != nil {
 		return nil, err
 	}
@@ -536,7 +536,7 @@ func (c *Client) dispatch(ctx context.Context, req *Request, resp *Response) err
 		return err
 	}
 
-	s, err := c.createStream(0, p)
+	s, err := c.createStream(0, p, 1)
 	if err != nil {
 		return err
 	}
diff --git a/vendor/github.com/containerd/ttrpc/errors.go b/vendor/github.com/containerd/ttrpc/errors.go
index 632dbe8bd..1e6f6b9c9 100644
--- a/vendor/github.com/containerd/ttrpc/errors.go
+++ b/vendor/github.com/containerd/ttrpc/errors.go
@@ -36,6 +36,12 @@ var (
 
 	// ErrStreamClosed is when the streaming connection is closed.
 	ErrStreamClosed = errors.New("ttrpc: stream closed")
+
+	// ErrStreamFull is returned when a stream's receive buffer is full
+	// and the message cannot be delivered without blocking the
+	// connection's receive loop. This prevents a single unconsumed
+	// stream from deadlocking all other streams on the same connection.
+	ErrStreamFull = errors.New("ttrpc: stream buffer full")
 )
 
 // OversizedMessageErr is used to indicate refusal to send an oversized message.
diff --git a/vendor/github.com/containerd/ttrpc/request.pb.go b/vendor/github.com/containerd/ttrpc/request.pb.go
index 3921ae5a3..fe1d749f7 100644
--- a/vendor/github.com/containerd/ttrpc/request.pb.go
+++ b/vendor/github.com/containerd/ttrpc/request.pb.go
@@ -1,8 +1,8 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.20.1
-// source: github.com/containerd/ttrpc/request.proto
+// 	protoc        (unknown)
+// source: request.proto
 
 package ttrpc
 
@@ -36,7 +36,7 @@ type Request struct {
 func (x *Request) Reset() {
 	*x = Request{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[0]
+		mi := &file_request_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -49,7 +49,7 @@ func (x *Request) String() string {
 func (*Request) ProtoMessage() {}
 
 func (x *Request) ProtoReflect() protoreflect.Message {
-	mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[0]
+	mi := &file_request_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -62,7 +62,7 @@ func (x *Request) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Request.ProtoReflect.Descriptor instead.
 func (*Request) Descriptor() ([]byte, []int) {
-	return file_github_com_containerd_ttrpc_request_proto_rawDescGZIP(), []int{0}
+	return file_request_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *Request) GetService() string {
@@ -112,7 +112,7 @@ type Response struct {
 func (x *Response) Reset() {
 	*x = Response{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[1]
+		mi := &file_request_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -125,7 +125,7 @@ func (x *Response) String() string {
 func (*Response) ProtoMessage() {}
 
 func (x *Response) ProtoReflect() protoreflect.Message {
-	mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[1]
+	mi := &file_request_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -138,7 +138,7 @@ func (x *Response) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Response.ProtoReflect.Descriptor instead.
 func (*Response) Descriptor() ([]byte, []int) {
-	return file_github_com_containerd_ttrpc_request_proto_rawDescGZIP(), []int{1}
+	return file_request_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *Response) GetStatus() *status.Status {
@@ -166,7 +166,7 @@ type StringList struct {
 func (x *StringList) Reset() {
 	*x = StringList{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[2]
+		mi := &file_request_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -179,7 +179,7 @@ func (x *StringList) String() string {
 func (*StringList) ProtoMessage() {}
 
 func (x *StringList) ProtoReflect() protoreflect.Message {
-	mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[2]
+	mi := &file_request_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -192,7 +192,7 @@ func (x *StringList) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use StringList.ProtoReflect.Descriptor instead.
 func (*StringList) Descriptor() ([]byte, []int) {
-	return file_github_com_containerd_ttrpc_request_proto_rawDescGZIP(), []int{2}
+	return file_request_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *StringList) GetList() []string {
@@ -214,7 +214,7 @@ type KeyValue struct {
 func (x *KeyValue) Reset() {
 	*x = KeyValue{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[3]
+		mi := &file_request_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -227,7 +227,7 @@ func (x *KeyValue) String() string {
 func (*KeyValue) ProtoMessage() {}
 
 func (x *KeyValue) ProtoReflect() protoreflect.Message {
-	mi := &file_github_com_containerd_ttrpc_request_proto_msgTypes[3]
+	mi := &file_request_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -240,7 +240,7 @@ func (x *KeyValue) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use KeyValue.ProtoReflect.Descriptor instead.
 func (*KeyValue) Descriptor() ([]byte, []int) {
-	return file_github_com_containerd_ttrpc_request_proto_rawDescGZIP(), []int{3}
+	return file_request_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *KeyValue) GetKey() string {
@@ -257,62 +257,61 @@ func (x *KeyValue) GetValue() string {
 	return ""
 }
 
-var File_github_com_containerd_ttrpc_request_proto protoreflect.FileDescriptor
+var File_request_proto protoreflect.FileDescriptor
 
-var file_github_com_containerd_ttrpc_request_proto_rawDesc = []byte{
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-	0x6f, 0x33,
+var file_request_proto_rawDesc = []byte{
+	0x0a, 0x0d, 0x72, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
+	0x05, 0x74, 0x74, 0x72, 0x70, 0x63, 0x1a, 0x17, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x72,
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+	0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x12, 0x18, 0x0a,
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+	0x6e, 0x73, 0x65, 0x12, 0x2a, 0x0a, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x0b, 0x32, 0x12, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x72, 0x70, 0x63,
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+	0x18, 0x0a, 0x07, 0x70, 0x61, 0x79, 0x6c, 0x6f, 0x61, 0x64, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0c,
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+	0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x42,
+	0x1d, 0x5a, 0x1b, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x6f,
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+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
-	file_github_com_containerd_ttrpc_request_proto_rawDescOnce sync.Once
-	file_github_com_containerd_ttrpc_request_proto_rawDescData = file_github_com_containerd_ttrpc_request_proto_rawDesc
+	file_request_proto_rawDescOnce sync.Once
+	file_request_proto_rawDescData = file_request_proto_rawDesc
 )
 
-func file_github_com_containerd_ttrpc_request_proto_rawDescGZIP() []byte {
-	file_github_com_containerd_ttrpc_request_proto_rawDescOnce.Do(func() {
-		file_github_com_containerd_ttrpc_request_proto_rawDescData = protoimpl.X.CompressGZIP(file_github_com_containerd_ttrpc_request_proto_rawDescData)
+func file_request_proto_rawDescGZIP() []byte {
+	file_request_proto_rawDescOnce.Do(func() {
+		file_request_proto_rawDescData = protoimpl.X.CompressGZIP(file_request_proto_rawDescData)
 	})
-	return file_github_com_containerd_ttrpc_request_proto_rawDescData
+	return file_request_proto_rawDescData
 }
 
-var file_github_com_containerd_ttrpc_request_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
-var file_github_com_containerd_ttrpc_request_proto_goTypes = []interface{}{
+var file_request_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_request_proto_goTypes = []interface{}{
 	(*Request)(nil),       // 0: ttrpc.Request
 	(*Response)(nil),      // 1: ttrpc.Response
 	(*StringList)(nil),    // 2: ttrpc.StringList
 	(*KeyValue)(nil),      // 3: ttrpc.KeyValue
-	(*status.Status)(nil), // 4: Status
+	(*status.Status)(nil), // 4: google.rpc.Status
 }
-var file_github_com_containerd_ttrpc_request_proto_depIdxs = []int32{
+var file_request_proto_depIdxs = []int32{
 	3, // 0: ttrpc.Request.metadata:type_name -> ttrpc.KeyValue
-	4, // 1: ttrpc.Response.status:type_name -> Status
+	4, // 1: ttrpc.Response.status:type_name -> google.rpc.Status
 	2, // [2:2] is the sub-list for method output_type
 	2, // [2:2] is the sub-list for method input_type
 	2, // [2:2] is the sub-list for extension type_name
@@ -320,13 +319,13 @@ var file_github_com_containerd_ttrpc_request_proto_depIdxs = []int32{
 	0, // [0:2] is the sub-list for field type_name
 }
 
-func init() { file_github_com_containerd_ttrpc_request_proto_init() }
-func file_github_com_containerd_ttrpc_request_proto_init() {
-	if File_github_com_containerd_ttrpc_request_proto != nil {
+func init() { file_request_proto_init() }
+func file_request_proto_init() {
+	if File_request_proto != nil {
 		return
 	}
 	if !protoimpl.UnsafeEnabled {
-		file_github_com_containerd_ttrpc_request_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+		file_request_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Request); i {
 			case 0:
 				return &v.state
@@ -338,7 +337,7 @@ func file_github_com_containerd_ttrpc_request_proto_init() {
 				return nil
 			}
 		}
-		file_github_com_containerd_ttrpc_request_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+		file_request_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Response); i {
 			case 0:
 				return &v.state
@@ -350,7 +349,7 @@ func file_github_com_containerd_ttrpc_request_proto_init() {
 				return nil
 			}
 		}
-		file_github_com_containerd_ttrpc_request_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+		file_request_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*StringList); i {
 			case 0:
 				return &v.state
@@ -362,7 +361,7 @@ func file_github_com_containerd_ttrpc_request_proto_init() {
 				return nil
 			}
 		}
-		file_github_com_containerd_ttrpc_request_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+		file_request_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*KeyValue); i {
 			case 0:
 				return &v.state
@@ -379,18 +378,18 @@ func file_github_com_containerd_ttrpc_request_proto_init() {
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_github_com_containerd_ttrpc_request_proto_rawDesc,
+			RawDescriptor: file_request_proto_rawDesc,
 			NumEnums:      0,
 			NumMessages:   4,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
-		GoTypes:           file_github_com_containerd_ttrpc_request_proto_goTypes,
-		DependencyIndexes: file_github_com_containerd_ttrpc_request_proto_depIdxs,
-		MessageInfos:      file_github_com_containerd_ttrpc_request_proto_msgTypes,
+		GoTypes:           file_request_proto_goTypes,
+		DependencyIndexes: file_request_proto_depIdxs,
+		MessageInfos:      file_request_proto_msgTypes,
 	}.Build()
-	File_github_com_containerd_ttrpc_request_proto = out.File
-	file_github_com_containerd_ttrpc_request_proto_rawDesc = nil
-	file_github_com_containerd_ttrpc_request_proto_goTypes = nil
-	file_github_com_containerd_ttrpc_request_proto_depIdxs = nil
+	File_request_proto = out.File
+	file_request_proto_rawDesc = nil
+	file_request_proto_goTypes = nil
+	file_request_proto_depIdxs = nil
 }
diff --git a/vendor/github.com/containerd/ttrpc/request.proto b/vendor/github.com/containerd/ttrpc/request.proto
index 37da334fc..3602eed1e 100644
--- a/vendor/github.com/containerd/ttrpc/request.proto
+++ b/vendor/github.com/containerd/ttrpc/request.proto
@@ -2,7 +2,7 @@ syntax = "proto3";
 
 package ttrpc;
 
-import "proto/status.proto";
+import "google/rpc/status.proto";
 
 option go_package = "github.com/containerd/ttrpc";
 
@@ -15,7 +15,7 @@ message Request {
 }
 
 message Response {
-	Status status = 1;
+	google.rpc.Status status = 1;
 	bytes payload = 2;
 }
 
diff --git a/vendor/github.com/containerd/ttrpc/server.go b/vendor/github.com/containerd/ttrpc/server.go
index 9606a975d..4162b1540 100644
--- a/vendor/github.com/containerd/ttrpc/server.go
+++ b/vendor/github.com/containerd/ttrpc/server.go
@@ -568,8 +568,6 @@ func (c *serverConn) run(sctx context.Context) {
 	}
 }
 
-var noopFunc = func() {}
-
 func getRequestContext(ctx context.Context, req *Request) (retCtx context.Context, cancel func()) {
 	if len(req.Metadata) > 0 {
 		md := MD{}
@@ -577,11 +575,10 @@ func getRequestContext(ctx context.Context, req *Request) (retCtx context.Contex
 		ctx = WithMetadata(ctx, md)
 	}
 
-	cancel = noopFunc
 	if req.TimeoutNano == 0 {
-		return ctx, cancel
+		// Cancellable so handlers' deferred cancel propagates to RecvMsg.
+		return context.WithCancel(ctx)
 	}
 
-	ctx, cancel = context.WithTimeout(ctx, time.Duration(req.TimeoutNano))
-	return ctx, cancel
+	return context.WithTimeout(ctx, time.Duration(req.TimeoutNano))
 }
diff --git a/vendor/github.com/containerd/ttrpc/services.go b/vendor/github.com/containerd/ttrpc/services.go
index 6d092bf95..ac7c752f7 100644
--- a/vendor/github.com/containerd/ttrpc/services.go
+++ b/vendor/github.com/containerd/ttrpc/services.go
@@ -23,6 +23,7 @@ import (
 	"io"
 	"os"
 	"path"
+	"time"
 	"unsafe"
 
 	"google.golang.org/grpc/codes"
@@ -128,10 +129,14 @@ func (s *serviceSet) handle(ctx context.Context, req *Request, respond func(*sta
 			StreamingClient: stream.StreamingClient,
 			StreamingServer: stream.StreamingServer,
 		}
+		recvBuf := streamRecvBufferSize
+		if !stream.StreamingClient {
+			recvBuf = 1
+		}
 		sh := &streamHandler{
 			ctx:     ctx,
 			respond: respond,
-			recv:    make(chan Unmarshaler, 5),
+			recv:    make(chan Unmarshaler, recvBuf),
 			info:    info,
 		}
 		go func() {
@@ -158,6 +163,12 @@ func (s *serviceSet) handle(ctx context.Context, req *Request, respond func(*sta
 	return nil, status.Errorf(codes.Unimplemented, "method %v", req.Method)
 }
 
+// streamRecvBufferSize is the buffer size for stream recv channels. It
+// should be large enough to absorb normal bursts without hitting the
+// 1-second timeout fallback in receive/data, but small enough that
+// per-stream memory overhead stays trivial.
+const streamRecvBufferSize = 64
+
 type streamHandler struct {
 	ctx     context.Context
 	respond func(*status.Status, []byte, bool, bool) error
@@ -184,6 +195,17 @@ func (s *streamHandler) data(unmarshal Unmarshaler) error {
 		return nil
 	case <-s.ctx.Done():
 		return s.ctx.Err()
+	default:
+		// If recv channel is full, wait up to a second for an item
+		// to drain and unblock, otherwise return an error.
+		select {
+		case s.recv <- unmarshal:
+			return nil
+		case <-s.ctx.Done():
+			return s.ctx.Err()
+		case <-time.After(time.Second):
+			return ErrStreamFull
+		}
 	}
 }
 
diff --git a/vendor/github.com/containerd/ttrpc/stream.go b/vendor/github.com/containerd/ttrpc/stream.go
index 739a4c967..a6a71def6 100644
--- a/vendor/github.com/containerd/ttrpc/stream.go
+++ b/vendor/github.com/containerd/ttrpc/stream.go
@@ -19,6 +19,7 @@ package ttrpc
 import (
 	"context"
 	"sync"
+	"time"
 )
 
 type streamID uint32
@@ -38,11 +39,11 @@ type stream struct {
 	recvClose chan struct{}
 }
 
-func newStream(id streamID, send sender) *stream {
+func newStream(id streamID, send sender, recvBuf int) *stream {
 	return &stream{
 		id:        id,
 		sender:    send,
-		recv:      make(chan *streamMessage, 1),
+		recv:      make(chan *streamMessage, recvBuf),
 		recvClose: make(chan struct{}),
 	}
 }
@@ -63,6 +64,11 @@ func (s *stream) send(mt messageType, flags uint8, b []byte) error {
 	return s.sender.send(uint32(s.id), mt, flags, b)
 }
 
+// receive delivers a message to this stream from the connection receive loop.
+// If the stream's recv buffer is full, it waits up to 1 second for the
+// consumer to make progress. This keeps the receive loop moving for other
+// streams while still providing backpressure under normal operation. If the
+// timeout expires the stream is closed with ErrStreamFull.
 func (s *stream) receive(ctx context.Context, msg *streamMessage) error {
 	select {
 	case <-s.recvClose:
@@ -76,6 +82,20 @@ func (s *stream) receive(ctx context.Context, msg *streamMessage) error {
 		return nil
 	case <-ctx.Done():
 		return ctx.Err()
+	default:
+		// If recv channel is full, wait up to a second for an item
+		// to drain and unblock, otherwise close the stream.
+		select {
+		case <-s.recvClose:
+			return s.recvErr
+		case s.recv <- msg:
+			return nil
+		case <-ctx.Done():
+			return ctx.Err()
+		case <-time.After(time.Second):
+			s.closeWithError(ErrStreamFull)
+			return ErrStreamFull
+		}
 	}
 }
 
diff --git a/vendor/github.com/containerd/ttrpc/test.proto b/vendor/github.com/containerd/ttrpc/test.proto
deleted file mode 100644
index 0e114d556..000000000
--- a/vendor/github.com/containerd/ttrpc/test.proto
+++ /dev/null
@@ -1,16 +0,0 @@
-syntax = "proto3";
-
-package ttrpc;
-
-option go_package = "github.com/containerd/ttrpc/internal";
-
-message TestPayload {
-	string foo = 1;
-	int64 deadline = 2;
-	string metadata = 3;
-}
-
-message EchoPayload {
-	int64 seq = 1;
-	string msg = 2;
-}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index d2028169e..82ff3d05a 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -506,8 +506,8 @@ github.com/containerd/stargz-snapshotter/estargz
 github.com/containerd/stargz-snapshotter/estargz/errorutil
 github.com/containerd/stargz-snapshotter/estargz/externaltoc
 github.com/containerd/stargz-snapshotter/estargz/zstdchunked
-# github.com/containerd/ttrpc v1.2.8
-## explicit; go 1.22
+# github.com/containerd/ttrpc v1.2.9
+## explicit; go 1.25.0
 github.com/containerd/ttrpc
 # github.com/containerd/typeurl/v2 v2.3.0
 ## explicit; go 1.21
@@ -823,7 +823,7 @@ github.com/moby/profiles/seccomp
 # github.com/moby/sys/capability v0.4.0
 ## explicit; go 1.21
 github.com/moby/sys/capability
-# github.com/moby/sys/mount v0.3.5-0.20260529155943-fc52b7222d0b
+# github.com/moby/sys/mount v0.3.5
 ## explicit; go 1.18
 github.com/moby/sys/mount
 # github.com/moby/sys/mountinfo v0.7.2