[25.0 backport] plugin: fix mounting /etc/hosts when running in UserNS #47588
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vvoland
added
area/plugins
area/rootless
Fix `error mounting "/etc/hosts" to rootfs at "/etc/hosts": mount /etc/hosts:/etc/hosts (via /proc/self/fd/6), flags: 0x5021: operation not permitted`. This error was introduced in 7d08d84 (`dockerd-rootless.sh: set rootlesskit --state-dir=DIR`) that changed the filesystem of the state dir from /tmp to /run (in a typical setup). Fix issue 47248 Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp> (cherry picked from commit 762ec4b) Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
This code is currently only used in the daemon, but is also needed in other places. We should consider moving this code to github.com/moby/sys, so that BuildKit can also use the same implementation instead of maintaining a fork; moving it to internal allows us to reuse this code inside the repository, but does not allow external consumers to depend on it (which we don't want as it's not a permanent location). As our code only uses this in linux files, I did not add a stub for other platforms (but we may decide to do that in the moby/sys repository). Signed-off-by: Sebastiaan van Stijn <github@gone.nl> (cherry picked from commit 7b414f5) Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
neersighted
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Mar 19, 2024
cpuguy83
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Mar 19, 2024
idodod
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Apr 22, 2024
[](https://renovatebot.com) This PR contains the following updates: | Package | Update | Change | |---|---|---| | [docker/docker](https://togithub.com/docker/docker) | patch | `25.0.1` -> `25.0.5` | --- ### Release Notes <details> <summary>docker/docker (docker/docker)</summary> ### [`v25.0.5`](https://togithub.com/moby/moby/releases/tag/v25.0.5) [Compare Source](https://togithub.com/docker/docker/compare/v25.0.4...v25.0.5) #### 25.0.5 For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones: - [docker/cli, 25.0.5 milestone](https://togithub.com/docker/cli/issues?q=is%3Aclosed+milestone%3A25.0.5) - [moby/moby, 25.0.5 milestone](https://togithub.com/moby/moby/issues?q=is%3Aclosed+milestone%3A25.0.5) - Deprecated and removed features, see [Deprecated Features](https://togithub.com/docker/cli/blob/v25.0.5/docs/deprecated.md). - Changes to the Engine API, see [API version history](https://togithub.com/moby/moby/blob/v25.0.5/docs/api/version-history.md). ##### Security This release contains a security fix for [CVE-2024-29018], a potential data exfiltration from 'internal' networks via authoritative DNS servers. ##### Bug fixes and enhancements - [CVE-2024-29018]: Do not forward requests to external DNS servers for a container that is only connected to an 'internal' network. Previously, requests were forwarded if the host's DNS server was running on a loopback address, like systemd's 127.0.0.53. [moby/moby#47589](https://togithub.com/moby/moby/pull/47589) - plugin: fix mounting /etc/hosts when running in UserNS. [moby/moby#47588](https://togithub.com/moby/moby/pull/47588) - rootless: fix `open /etc/docker/plugins: permission denied`. [moby/moby#47587](https://togithub.com/moby/moby/pull/47587) - Fix multiple parallel `docker build` runs leaking disk space. [moby/moby#47527](https://togithub.com/moby/moby/pull/47527) [CVE-2024-29018]: https://togithub.com/moby/moby/security/advisories/GHSA-mq39-4gv4-mvpx ### [`v25.0.4`](https://togithub.com/moby/moby/releases/tag/v25.0.4) [Compare Source](https://togithub.com/docker/docker/compare/v25.0.3...v25.0.4) #### 25.0.4 For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones: - [docker/cli, 25.0.4 milestone](https://togithub.com/docker/cli/issues?q=is%3Aclosed+milestone%3A25.0.4) - [moby/moby, 25.0.4 milestone](https://togithub.com/moby/moby/issues?q=is%3Aclosed+milestone%3A25.0.4) - Deprecated and removed features, see [Deprecated Features](https://togithub.com/docker/cli/blob/v25.0.4/docs/deprecated.md). - Changes to the Engine API, see [API version history](https://togithub.com/moby/moby/blob/v25.0.4/docs/api/version-history.md). ##### Bug fixes and enhancements - Restore DNS names for containers in the default "nat" network on Windows. [moby/moby#47490](https://togithub.com/moby/moby/pull/47490) - Fix `docker start` failing when used with `--checkpoint` [moby/moby#47466](https://togithub.com/moby/moby/pull/47466) - Don't enforce new validation rules for existing swarm networks [moby/moby#47482](https://togithub.com/moby/moby/pull/47482) - Restore IP connectivity between the host and containers on an internal bridge network. [moby/moby#47481](https://togithub.com/moby/moby/pull/47481) - Fix a regression introduced in v25.0 that prevented the classic builder from ADDing a tar archive with xattrs created on a non-Linux OS [moby/moby#47483](https://togithub.com/moby/moby/pull/47483) - containerd image store: Fix image pull not emitting `Pulling fs layer` status [moby/moby#47484](https://togithub.com/moby/moby/pull/47484) ##### API - To preserve backwards compatibility, make read-only mounts not recursive by default when using older clients (API version < v1.44). [moby/moby#47393](https://togithub.com/moby/moby/pull/47393) - `GET /images/{id}/json` omits the `Created` field (previously it was `0001-01-01T00:00:00Z`) if the `Created` field is missing from the image config. [moby/moby#47451](https://togithub.com/moby/moby/pull/47451) - Populate a missing `Created` field in `GET /images/{id}/json` with `0001-01-01T00:00:00Z` for API version <= 1.43. [moby/moby#47387](https://togithub.com/moby/moby/pull/47387) - Fix a regression that caused API socket connection failures to report an API version negotiation failure instead. [moby/moby#47470](https://togithub.com/moby/moby/pull/47470) - Preserve supplied endpoint configuration in a container-create API request, when a container-wide MAC address is specified, but `NetworkMode` name-or-id is not the same as the name-or-id used in `NetworkSettings.Networks`. [moby/moby#47510](https://togithub.com/moby/moby/pull/47510) ##### Packaging updates - Upgrade Go runtime to [1.21.8](https://go.dev/doc/devel/release#go1.21.8). [moby/moby#47503](https://togithub.com/moby/moby/pull/47503) - Upgrade RootlessKit to [v2.0.2](https://togithub.com/rootless-containers/rootlesskit/releases/tag/v2.0.2). [moby/moby#47508](https://togithub.com/moby/moby/pull/47508) - Upgrade Compose to [v2.24.7](https://togithub.com/docker/compose/releases/tag/v2.24.7). [docker/docker-ce-packaging#998 - Upgrade Buildx to [v0.13.0](https://togithub.com/docker/buildx/releases/tag/v0.13.0). [docker/docker-ce-packaging#997 **Full Changelog**: moby/moby@v25.0.3...v25.0.4 ### [`v25.0.3`](https://togithub.com/moby/moby/releases/tag/v25.0.3) [Compare Source](https://togithub.com/docker/docker/compare/v25.0.2...v25.0.3) #### 25.0.3 For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones: - [docker/cli, 25.0.3 milestone](https://togithub.com/docker/cli/issues?q=is%3Aclosed+milestone%3A25.0.3) - [moby/moby, 25.0.3 milestone](https://togithub.com/moby/moby/issues?q=is%3Aclosed+milestone%3A25.0.3) ##### Bug fixes and enhancements - containerd image store: Fix a bug where `docker image history` would fail if a manifest wasn't found in the content store. [moby/moby#47348](https://togithub.com/moby/moby/pull/47348) - Ensure that a generated MAC address is not restored when a container is restarted, but a configured MAC address is preserved. [moby/moby#47304](https://togithub.com/moby/moby/pull/47304) > **Note** > > - Containers created with Docker Engine version 25.0.0 may have duplicate MAC addresses. > They must be re-created. > - Containers with user-defined MAC addresses created with Docker Engine versions 25.0.0 or 25.0.1 > receive new MAC addresses when started using Docker Engine version 25.0.2. > They must also be re-created. <!----> - Fix `docker save <image>@​<digest>` producing an OCI archive with index without manifests. [moby/moby#47294](https://togithub.com/moby/moby/pull/47294) - Fix a bug preventing bridge networks from being created with an MTU higher than 1500 on RHEL and CentOS 7. [moby/moby#47308](https://togithub.com/moby/moby/issues/47308), [moby/moby#47311](https://togithub.com/moby/moby/pull/47311) - Fix a bug where containers are unable to communicate over an `internal` network. [moby/moby#47303](https://togithub.com/moby/moby/pull/47303) - Fix a bug where the value of the `ipv6` daemon option was ignored. [moby/moby#47310](https://togithub.com/moby/moby/pull/47310) - Fix a bug where trying to install a pulling using a digest revision would cause a panic. [moby/moby#47323](https://togithub.com/moby/moby/pull/47323) - Fix a potential race condition in the managed containerd supervisor. [moby/moby#47313](https://togithub.com/moby/moby/pull/47313) - Fix an issue with the `journald` log driver preventing container logs from being followed correctly with systemd version 255. [moby/moby47243](https://togithub.com/moby/moby/pull/47243) - seccomp: Update the builtin seccomp profile to include syscalls added in kernel v5.17 - v6.7 to align the profile with the profile used by containerd. [moby/moby#47341](https://togithub.com/moby/moby/pull/47341) - Windows: Fix cache not being used when building images based on Windows versions older than the host's version. [moby/moby#47307](https://togithub.com/moby/moby/pull/47307), [moby/moby#47337](https://togithub.com/moby/moby/pull/47337) ##### Packaging updates - Removed support for Ubuntu Lunar (23.04). [docker/ce-packaging#986](https://togithub.com/docker/docker-ce-packaging/pull/986) ### [`v25.0.2`](https://togithub.com/moby/moby/releases/tag/v25.0.2) [Compare Source](https://togithub.com/docker/docker/compare/v25.0.1...v25.0.2) #### 25.0.2 For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones: - [docker/cli, 25.0.2 milestone](https://togithub.com/docker/cli/issues?q=is%3Aclosed+milestone%3A25.0.2) - [moby/moby, 25.0.2 milestone](https://togithub.com/moby/moby/issues?q=is%3Aclosed+milestone%3A25.0.2) ##### Security This release contains security fixes for the following CVEs affecting Docker Engine and its components. | CVE | Component | Fix version | Severity | | ----------------------------------------------------------- | ------------- | ----------- | ---------------- | | [CVE-2024-21626](https://scout.docker.com/v/CVE-2024-21626) | runc | 1.1.12 | High, CVSS 8.6 | | [CVE-2024-23651](https://scout.docker.com/v/CVE-2024-23651) | BuildKit | 1.12.5 | High, CVSS 8.7 | | [CVE-2024-23652](https://scout.docker.com/v/CVE-2024-23652) | BuildKit | 1.12.5 | High, CVSS 8.7 | | [CVE-2024-23653](https://scout.docker.com/v/CVE-2024-23653) | BuildKit | 1.12.5 | High, CVSS 7.7 | | [CVE-2024-23650](https://scout.docker.com/v/CVE-2024-23650) | BuildKit | 1.12.5 | Medium, CVSS 5.5 | | [CVE-2024-24557](https://scout.docker.com/v/CVE-2024-24557) | Docker Engine | 25.0.2 | Medium, CVSS 6.9 | The potential impacts of the above vulnerabilities include: - Unauthorized access to the host filesystem - Compromising the integrity of the build cache - In the case of CVE-2024-21626, a scenario that could lead to full container escape For more information about the security issues addressed in this release, refer to the [blog post](https://www.docker.com/blog/docker-security-advisory-multiple-vulnerabilities-in-runc-buildkit-and-moby/). For details about each vulnerability, see the relevant security advisory: - [CVE-2024-21626](https://togithub.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv) - [CVE-2024-23651](https://togithub.com/moby/buildkit/security/advisories/GHSA-m3r6-h7wv-7xxv) - [CVE-2024-23652](https://togithub.com/moby/buildkit/security/advisories/GHSA-4v98-7qmw-rqr8) - [CVE-2024-23653](https://togithub.com/moby/buildkit/security/advisories/GHSA-wr6v-9f75-vh2g) - [CVE-2024-23650](https://togithub.com/moby/buildkit/security/advisories/GHSA-9p26-698r-w4hx) - [CVE-2024-24557](https://togithub.com/moby/moby/security/advisories/GHSA-xw73-rw38-6vjc) ##### Packaging updates - Upgrade containerd to [v1.6.28](https://togithub.com/containerd/containerd/releases/tag/v1.6.28). - Upgrade containerd to v1.7.13 (static binaries only). [moby/moby#47280](https://togithub.com/moby/moby/pull/47280) - Upgrade runc to v1.1.12. [moby/moby#47269](https://togithub.com/moby/moby/pull/47269) - Upgrade Compose to v2.24.5. [docker/docker-ce-packaging#985](https://togithub.com/docker/docker-ce-packaging/pull/985) - Upgrade BuildKit to v0.12.5. [moby/moby#47273](https://togithub.com/moby/moby/pull/47273) </details> --- ### Configuration 📅 **Schedule**: Branch creation - "after 6am on monday" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/earthly/dind). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yOTMuMCIsInVwZGF0ZWRJblZlciI6IjM3LjI5My4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJyZW5vdmF0ZSJdfQ==--> --------- Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: idodod <ido@earthly.dev>
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- What I did
Fix
error mounting "/etc/hosts" to rootfs at "/etc/hosts": mount /etc/hosts:/etc/hosts (via /proc/self/fd/6), flags: 0x5021: operation not permitted.This error was introduced in 7d08d84 (
dockerd-rootless.sh: set rootlesskit --state-dir=DIR) that changed the filesystem of the state dir from /tmp to /run (in a typical setup).Fixes #47248
- How I did it
Applied
mountsopts.FixUpOCI- How to verify it
- Description for the changelog
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