Affected by GO-2026-4883 and 4 other vulnerabilities

GO-2026-4883: Moby has an Off-by-one error in its plugin privilege validation in github.com/docker/docker

GO-2026-4887: Moby has AuthZ plugin bypass when provided oversized request bodies in github.com/docker/docker

GO-2026-5617: Docker: Race condition in docker cp allows bind mount redirection to host path in github.com/docker/docker

GO-2026-5668: Docker: Race condition in docker cp allows creation of arbitrary empty files on the host via symlink swap in github.com/docker/docker

GO-2026-5746: Docker: `PUT /containers/{id}/archive` executes container binary on the host in github.com/docker/docker

atomicwriter

package

v28.0.0+incompatible Latest Latest Go to latest Published: Feb 19, 2025 License: Apache-2.0 Imports: 3 Imported by: 47

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/docker/docker

Links

Documentation ¶

Index ¶

func New(filename string, perm os.FileMode) (io.WriteCloser, error)
func WriteFile(filename string, data []byte, perm os.FileMode) error
type WriteSet
- func NewWriteSet(tmpDir string) (*WriteSet, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func New ¶

func New(filename string, perm os.FileMode) (io.WriteCloser, error)

New returns a 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. NOTE: umask is not considered for the file's permissions.

func WriteFile ¶

func WriteFile(filename string, data []byte, perm os.FileMode) error

WriteFile atomically writes data to a file named by filename and with the specified permission bits. NOTE: umask is not considered for the file's permissions.

Types ¶

type WriteSet ¶

type WriteSet struct {
	// contains filtered or unexported fields
}

WriteSet is used to atomically write a set of files and ensure they are visible at the same time. Must be committed to a new directory.

func NewWriteSet ¶

func NewWriteSet(tmpDir string) (*WriteSet, error)

NewWriteSet creates a new atomic write set to atomically create a set of files. The given directory is used as the base directory for storing files before commit. If no temporary directory is given the system default is used.

func (*WriteSet) Cancel ¶

func (ws *WriteSet) Cancel() error

Cancel cancels the set and removes all temporary data created in the set.

func (*WriteSet) Commit ¶

func (ws *WriteSet) Commit(target string) error

Commit moves all created files to the target directory. The target directory must not exist and the parent of the target directory must exist.

func (*WriteSet) FileWriter ¶

func (ws *WriteSet) FileWriter(name string, flag int, perm os.FileMode) (io.WriteCloser, error)

FileWriter opens a file writer inside the set. The file should be synced and closed before calling commit.

func (*WriteSet) String ¶

func (ws *WriteSet) String() string

String returns the location the set is writing to.

func (*WriteSet) WriteFile ¶

func (ws *WriteSet) WriteFile(filename string, data []byte, perm os.FileMode) error

WriteFile writes a file to the set, guaranteeing the file has been synced.

Source Files ¶

View all Source files

atomicwriter.go

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