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Rodrigo Campos a00ce11e91 VERSION: release v1.3.0-rc.1 
Signed-off-by: Rodrigo Campos <rodrigoca@microsoft.com>
(cyphar: improve changelog)
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
2025-03-04 18:42:08 +11:00

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# Changelog
This file documents all notable changes made to this project since runc 1.0.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [1.3.0-rc.1] - 2025-03-04
> No tengo miedo al invierno, con tu recuerdo lleno de sol.
### libcontainer API
* `configs.CommandHook` struct has changed, Command is now a pointer.
Also, `configs.NewCommandHook` now accepts a `*Command`. (#4325)
* The `Process` struct has `User` string field replaced with numeric
`UID` and `GID` fields, and `AdditionalGroups` changed its type from
`[]string` to `[]int`. Essentially, resolution of user and group
names to IDs is no longer performed by libcontainer, so if a libcontainer
user previously relied on this feature, now they have to convert names to
IDs before calling libcontainer; it is recommended to use Go package
github.com/moby/sys/user for that. (#3999)
* Move libcontainer/cgroups to a separate repository. (#4618)
### Fixed
* `runc exec -p` no longer ignores specified `ioPriority` and `scheduler`
settings. Similarly, libcontainer's `Container.Start` and `Container.Run`
methods no longer ignore `Process.IOPriority` and `Process.Scheduler`
settings. (#4585)
* We no longer use `F_SEAL_FUTURE_WRITE` when sealing the runc binary, as it
turns out this had some unfortunate bugs in older kernel versions and was
never necessary in the first place. (#4641, #4640)
* runc now uses a more flexible method of joining namespaces, which better
matches the behaviour of `nsenter(8)`. This is mainly useful for users that
create a container with a runc-managed user namespace but want the container
to join some externally-managed namespace as well. (#4492)
* `runc` now properly handles joining time namespaces (such as with `runc
exec`). Previously we would attempt to set the time offsets when joining,
which would fail. (#4635, #4636)
* Handle `EINTR` retries correctly for socket-related direct
`golang.org/x/sys/unix` system calls. (#4637)
* Handle `close_range(2)` errors more gracefully. (#4596)
* Fix a stall issue that would happen if setting `O_CLOEXEC` with
`CloseExecFrom` failed (#4599).
* Handle errors on older kernels when resetting ambient capabilities more
gracefully. (#4597)
### Changed
* runc now has an official release policy to help provide more consistency
around our release schedules and better define our support policy for old
release branches. See `RELEASES.md` for more details. (#4557)
* Improved performance by switching to `strings.Cut` where appropriate.
(#4470)
* The minimum Go version of runc is now Go 1.23. (#4598)
* Updated builds to libseccomp v2.5.6. (#4625)
### Added
* runc has been updated to support OCI runtime-spec 1.2.1. (#4653)
* CPU affinity support for `runc exec`. (#4327)
* CRIU support can be disabled using the build tag `runc_nocriu`. (#4546)
* Support to get the pidfd of the container via CLI flag `pidfd-socket`.
(#4045)
* Support `skip-in-flight` and `link-remap` options for CRIU. (#4627)
* Support cgroup v1 mounted with `noprefix`. (#4513)
## [1.2.5] - 2025-02-13
> Мороз и солнце; день чудесный!
### Fixed
* There was a regression in systemd v230 which made the way we define device
rule restrictions require a systemctl daemon-reload for our transient
units. This caused issues for workloads using NVIDIA GPUs. Workaround the
upstream regression by re-arranging how the unit properties are defined.
(#4568, #4612, #4615)
* Dependency github.com/cyphar/filepath-securejoin is updated to v0.4.1,
allowing projects that vendor runc to bump it as well. (#4608)
* CI: fixed criu-dev compilation. (#4611)
### Changed
* Dependency golang.org/x/net is updated to 0.33.0. (#4632)
## [1.2.4] - 2025-01-07
> Христос се роди!
### Fixed
* Re-add tun/tap devices to built-in allowed devices lists.
In runc 1.2.0 we removed these devices from the default allow-list (which
were added seemingly by accident early in Docker's history) as a precaution
in order to try to reduce the attack surface of device inodes available to
most containers (#3468). At the time we thought that the vast majority of
users using tun/tap would already be specifying what devices they need (such
as by using `--device` with Docker/Podman) as opposed to doing the `mknod`
manually, and thus there would've been no user-visible change.
Unfortunately, it seems that this regressed a noticeable number of users
(and not all higher-level tools provide easy ways to specify devices to
allow) and so this change needed to be reverted. Users that do not need
these devices are recommended to explicitly disable them by adding deny
rules in their container configuration. (#4555, #4556)
## [1.2.3] - 2024-12-12
> Winter is not a season, it's a celebration.
### Fixed
* Fixed a regression in use of securejoin.MkdirAll, where multiple
runc processes racing to create the same mountpoint in a shared rootfs
would result in spurious EEXIST errors. In particular, this regression
caused issues with BuildKit. (#4543, #4550)
* Fixed a regression in eBPF support for pre-5.6 kernels after upgrading
Cilium's eBPF library version to 0.16 in runc. (#3008, #4548, #4551)
## [1.2.2] - 2024-11-15
> Specialization is for insects.
### Fixed
* Fixed the failure of `runc delete` on a rootless container with no
dedicated cgroup on a system with read-only `/sys/fs/cgroup` mount.
This is a regression in runc 1.2.0, causing a failure when using
rootless buildkit. (#4518, #4531)
* Using runc on a system where /run/runc and /usr/bin are on different
filesystems no longer results in harmless but annoying messages
("overlayfs: "xino" feature enabled using 3 upper inode bits")
appearing in the kernel log. (#4508, #4530)
### Changed
* Better memfd-bind documentation. (#4530)
* CI: bump Fedora 40 -> 41. (#4528)
## [1.2.1] - 2024-11-01
> No existe una escuela que enseñe a vivir.
### Fixed
* Became root after joining an existing user namespace. Otherwise, runc
won't have permissions to configure some mounts when running under
SELinux and runc is not creating the user namespace. (#4466, #4477)
### Removed
* Remove dependency on `golang.org/x/sys/execabs` from go.mod. (#4480)
* Remove runc-dmz, that had many limitations, and is mostly made obsolete by
the new protection mechanism added in v1.2.0. Note that runc-dmz was only
available only in the 1.2.0 release and required to set an environment variable
to opt-in. (#4488)
### Added
* The `script/check-config.sh` script now checks for overlayfs support. (#4494)
* When using cgroups v2, allow to set or update memory limit to "unlimited"
and swap limit to a specific value. (#4501)
## [1.2.0] - 2024-10-22
> できるときにできることをやるんだ。それが今だ。
### Added
* In order to alleviate the remaining concerns around the memory usage and
(arguably somewhat unimportant, but measurable) performance overhead of
memfds for cloning `/proc/self/exe`, we have added a new protection using
`overlayfs` that is used if you have enough privileges and the running
kernel supports it. It has effectively no performance nor memory overhead
(compared to no cloning at all). (#4448)
### Fixed
* The original fix for [CVE-2024-45310][cve-2024-45310] was intentionally very
limited in scope to make it easier to review, however it also did not handle
all possible `os.MkdirAll` cases and thus could lead to regressions. We have
switched to the more complete implementation in the newer versions of
`github.com/cyphar/filepath-securejoin`. (#4393, #4400, #4421, #4430)
* In certain situations (a system with lots of mounts or racing mounts) we
could accidentally end up leaking mounts from the container into the host.
This has been fixed. (#4417)
* The fallback logic for `O_TMPFILE` clones of `/proc/self/exe` had a minor
bug that would cause us to miss non-`noexec` directories and thus fail to
start containers on some systems. (#4444)
* Sometimes the cloned `/proc/self/exe` file descriptor could be placed in a
way that it would get clobbered by the Go runtime. We had a fix for this
already but it turns out it could still break in rare circumstances, but it
has now been fixed. (#4294, #4452)
### Changed
* It is not possible for `runc kill` to work properly in some specific
configurations (such as rootless containers with no cgroups and a shared pid
namespace). We now output a warning for such configurations. (#4398)
* memfd-bind: update the documentation and make path handling with the systemd
unit more idiomatic. (#4428)
* We now use v0.16 of Cilium's eBPF library, including fixes that quite a few
downstreams asked for. (#4397, #4396)
* Some internal `runc init` synchronisation that was no longer necessary (due
to the `/proc/self/exe` cloning move to Go) was removed. (#4441)
[cve-2024-45310]: https://github.com/opencontainers/runc/security/advisories/GHSA-jfvp-7x6p-h2pv
## [1.2.0-rc.3] - 2024-09-02
> The supreme happiness of life is the conviction that we are loved.
### Security
* Fix [CVE-2024-45310][cve-2024-45310], a low-severity attack that allowed
maliciously configured containers to create empty files and directories on
the host.
### Added
* Document build prerequisites for different platforms. (#4353)
### Fixed
* Try to delete exec fifo file when failure in creation. (#4319)
* Revert "libcontainer: seccomp: pass around *os.File for notifyfd". (#4337)
* Fix link to gvariant documentation in systemd docs. (#4369)
### Changed
* Remove pre-go1.17 build-tags. (#4329)
* libct/userns: assorted (godoc) improvements. (#4330)
* libct/userns: split userns detection from internal userns code. (#4331)
* rootfs: consolidate mountpoint creation logic. (#4359)
* Add Go 1.23, drop 1.21. (#4360)
* Revert "allow overriding VERSION value in Makefile" and add `EXTRA_VERSION`.
(#4370)
* Mv contrib/cmd tests/cmd (except memfd-bind). (#4377)
* Makefile: Don't read COMMIT, BUILDTAGS, `EXTRA_BUILDTAGS` from env vars.
(#4380)
[cve-2024-45310]: https://github.com/opencontainers/runc/security/advisories/GHSA-jfvp-7x6p-h2pv
## [1.2.0-rc.2] - 2024-06-26
> TRUE or FALSE, it's a problem!
### Important Notes
* libcontainer/cgroups users who want to manage cgroup devices need to explicitly
import libcontainer/cgroups/devices. (#3452, #4248)
* If building with Go 1.22.x, make sure to use 1.22.4 or a later version.
(see #4233 for more details)
### Added
* CI: add actuated-arm64. (#4142, #4252, #4276)
### Fixed
* cgroup v2: do not set swap to 0 or unlimited when it's not available. (#4188)
* Set the default value of CpuBurst to nil instead of 0. (#4210, #4211)
* libct/cg: write unified resources line by line. (#4186)
* libct.Start: fix locking, do not allow a second container init. (#4271)
* Fix tests in debian testing (mount_sshfs.bats). (#4245)
* Fix codespell warnings. (#4291)
* libct/cg/dev: fix TestSetV1Allow panic. (#4295)
* tests/int/scheduler: require smp. (#4298)
### Changed
* libct/cg/fs: don't write cpu_burst twice on ENOENT. (#4259)
* Make trimpath optional. (#3908)
* Remove unused system.Execv. (#4268)
* Stop blacklisting Go 1.22+, drop Go < 1.21 support, use Go 1.22 in CI. (#4292)
* Improve some error messages for runc exec. (#4320)
* ci/gha: bump golangci-lint[-action]. (#4255)
* tests/int/tty: increase the timeout. (#4260)
* [ci] use go mod instead of go get in spec.bats. (#4264)
* tests/int/checkpoint: rm double logging. (#4251)
* .cirrus.yml: rm FIXME from rootless fs on CentOS 7. (#4279)
* Dockerfile: bump Debian to 12, Go to 1.21. (#4296)
* ci/gha: switch to ubuntu 24.04. (#4286)
* Vagrantfile.fedora: bump to F40. (#4285)
## [1.2.0-rc.1] - 2024-04-03
> There's a frood who really knows where his towel is.
`runc` now requires a minimum of Go 1.20 to compile.
> **NOTE**: runc currently will not work properly when compiled with Go 1.22 or
> newer. This is due to some unfortunate glibc behaviour that Go 1.22
> exacerbates in a way that results in containers not being able to start on
> some systems. [See this issue for more information.][runc-4233]
[runc-4233]: https://github.com/opencontainers/runc/issues/4233
### Breaking
* Several aspects of how mount options work has been adjusted in a way that
could theoretically break users that have very strange mount option strings.
This was necessary to fix glaring issues in how mount options were being
treated. The key changes are:
- Mount options on bind-mounts that clear a mount flag are now always
applied. Previously, if a user requested a bind-mount with only clearing
options (such as `rw,exec,dev`) the options would be ignored and the
original bind-mount options would be set. Unfortunately this also means
that container configurations which specified only clearing mount options
will now actually get what they asked for, which could break existing
containers (though it seems unlikely that a user who requested a specific
mount option would consider it "broken" to get the mount options they
asked foruser who requested a specific mount option would consider it
"broken" to get the mount options they asked for). This also allows us to
silently add locked mount flags the user *did not explicitly request to be
cleared* in rootless mode, allowing for easier use of bind-mounts for
rootless containers. (#3967)
- Container configurations using bind-mounts with superblock mount flags
(i.e. filesystem-specific mount flags, referred to as "data" in
`mount(2)`, as opposed to VFS generic mount flags like `MS_NODEV`) will
now return an error. This is because superblock mount flags will also
affect the host mount (as the superblock is shared when bind-mounting),
which is obviously not acceptable. Previously, these flags were silently
ignored so this change simply tells users that runc cannot fulfil their
request rather than just ignoring it. (#3990)
If any of these changes cause problems in real-world workloads, please [open
an issue](https://github.com/opencontainers/runc/issues/new/choose) so we
can adjust the behaviour to avoid compatibility issues.
### Added
* runc has been updated to OCI runtime-spec 1.2.0, and supports all Linux
features with a few minor exceptions. See
[`docs/spec-conformance.md`](https://github.com/opencontainers/runc/blob/v1.2.0-rc.1/docs/spec-conformance.md)
for more details.
* runc now supports id-mapped mounts for bind-mounts (with no restrictions on
the mapping used for each mount). Other mount types are not currently
supported. This feature requires `MOUNT_ATTR_IDMAP` kernel support (Linux
5.12 or newer) as well as kernel support for the underlying filesystem used
for the bind-mount. See [`mount_setattr(2)`][mount_setattr.2] for a list of
supported filesystems and other restrictions. (#3717, #3985, #3993)
* Two new mechanisms for reducing the memory usage of our protections against
[CVE-2019-5736][cve-2019-5736] have been introduced:
- `runc-dmz` is a minimal binary (~8K) which acts as an additional execve
stage, allowing us to only need to protect the smaller binary. It should
be noted that there have been several compatibility issues reported with
the usage of `runc-dmz` (namely related to capabilities and SELinux). As
such, this mechanism is **opt-in** and can be enabled by running `runc`
with the environment variable `RUNC_DMZ=true` (setting this environment
variable in `config.json` will have no effect). This feature can be
disabled at build time using the `runc_nodmz` build tag. (#3983, #3987)
- `contrib/memfd-bind` is a helper daemon which will bind-mount a memfd copy
of `/usr/bin/runc` on top of `/usr/bin/runc`. This entirely eliminates
per-container copies of the binary, but requires care to ensure that
upgrades to runc are handled properly, and requires a long-running daemon
(unfortunately memfds cannot be bind-mounted directly and thus require a
daemon to keep them alive). (#3987)
* runc will now use `cgroup.kill` if available to kill all processes in a
container (such as when doing `runc kill`). (#3135, #3825)
* Add support for setting the umask for `runc exec`. (#3661)
* libct/cg: support `SCHED_IDLE` for runc cgroupfs. (#3377)
* checkpoint/restore: implement `--manage-cgroups-mode=ignore`. (#3546)
* seccomp: refactor flags support; add flags to features, set `SPEC_ALLOW` by
default. (#3588)
* libct/cg/sd: use systemd v240+ new `MAJOR:*` syntax. (#3843)
* Support CFS bandwidth burst for CPU. (#3749, #3145)
* Support time namespaces. (#3876)
* Reduce the `runc` binary size by ~11% by updating
`github.com/checkpoint-restore/go-criu`. (#3652)
* Add `--pidfd-socket` to `runc run` and `runc exec` to allow for management
processes to receive a pidfd for the new process, allowing them to avoid pid
reuse attacks. (#4045)
[mount_setattr.2]: https://man7.org/linux/man-pages/man2/mount_setattr.2.html
[cve-2019-5736]: https://github.com/advisories/GHSA-gxmr-w5mj-v8hh
### Deprecated
* `runc` option `--criu` is now ignored (with a warning), and the option will
be removed entirely in a future release. Users who need a non-standard
`criu` binary should rely on the standard way of looking up binaries in
`$PATH`. (#3316)
* `runc kill` option `-a` is now deprecated. Previously, it had to be specified
to kill a container (with SIGKILL) which does not have its own private PID
namespace (so that runc would send SIGKILL to all processes). Now, this is
done automatically. (#3864, #3825)
* `github.com/opencontainers/runc/libcontainer/user` is now deprecated, please
use `github.com/moby/sys/user` instead. It will be removed in a future
release. (#4017)
### Changed
* When Intel RDT feature is not available, its initialization is skipped,
resulting in slightly faster `runc exec` and `runc run`. (#3306)
* `runc features` is no longer experimental. (#3861)
* libcontainer users that create and kill containers from a daemon process
(so that the container init is a child of that process) must now implement
a proper child reaper in case a container does not have its own private PID
namespace, as documented in `container.Signal`. (#3825)
* Sum `anon` and `file` from `memory.stat` for cgroupv2 root usage,
as the root does not have `memory.current` for cgroupv2.
This aligns cgroupv2 root usage more closely with cgroupv1 reporting.
Additionally, report root swap usage as sum of swap and memory usage,
aligned with v1 and existing non-root v2 reporting. (#3933)
* Add `swapOnlyUsage` in `MemoryStats`. This field reports swap-only usage.
For cgroupv1, `Usage` and `Failcnt` are set by subtracting memory usage
from memory+swap usage. For cgroupv2, `Usage`, `Limit`, and `MaxUsage`
are set. (#4010)
* libcontainer users that create and kill containers from a daemon process
(so that the container init is a child of that process) must now implement
a proper child reaper in case a container does not have its own private PID
namespace, as documented in `container.Signal`. (#3825)
* libcontainer: `container.Signal` no longer takes an `all` argument. Whether
or not it is necessary to kill all processes in the container individually
is now determined automatically. (#3825, #3885)
* seccomp: enable seccomp binary tree optimization. (#3405)
* `runc run`/`runc exec`: ignore SIGURG. (#3368)
* Remove tun/tap from the default device allowlist. (#3468)
* `runc --root non-existent-dir list` now reports an error for non-existent
root directory. (#3374)
### Fixed
* In case the runc binary resides on tmpfs, `runc init` no longer re-execs
itself twice. (#3342)
* Our seccomp `-ENOSYS` stub now correctly handles multiplexed syscalls on
s390 and s390x. This solves the issue where syscalls the host kernel did not
support would return `-EPERM` despite the existence of the `-ENOSYS` stub
code (this was due to how s390x does syscall multiplexing). (#3474)
* Remove tun/tap from the default device rules. (#3468)
* specconv: avoid mapping "acl" to `MS_POSIXACL`. (#3739)
* libcontainer: fix private PID namespace detection when killing the
container. (#3866, #3825)
* systemd socket notification: fix race where runc exited before systemd
properly handled the `READY` notification. (#3291, #3293)
* The `-ENOSYS` seccomp stub is now always generated for the native
architecture that `runc` is running on. This is needed to work around some
arguably specification-incompliant behaviour from Docker on architectures
such as ppc64le, where the allowed architecture list is set to `null`. This
ensures that we always generate at least one `-ENOSYS` stub for the native
architecture even with these weird configs. (#4219)
### Removed
* In order to fix performance issues in the "lightweight" bindfd protection
against [CVE-2019-5736][cve-2019-5736], the temporary `ro` bind-mount of
`/proc/self/exe` has been removed. runc now creates a binary copy in all
cases. See the above notes about `memfd-bind` and `runc-dmz` as well as
`contrib/cmd/memfd-bind/README.md` for more information about how this
(minor) change in memory usage can be further reduced. (#3987, #3599, #2532,
#3931)
* libct/cg: Remove `EnterPid` (a function with no users). (#3797)
* libcontainer: Remove `{Pre,Post}MountCmds` which were never used and are
obsoleted by more generic container hooks. (#3350)
[cve-2019-5736]: https://github.com/advisories/GHSA-gxmr-w5mj-v8hh
## [1.1.15] - 2024-10-07
> How, dear sir, did you cross the flood? By not stopping, friend, and by not
> straining I crossed the flood.
### Fixed
* The `-ENOSYS` seccomp stub is now always generated for the native
architecture that `runc` is running on. This is needed to work around some
arguably specification-incompliant behaviour from Docker on architectures
such as ppc64le, where the allowed architecture list is set to `null`. This
ensures that we always generate at least one `-ENOSYS` stub for the native
architecture even with these weird configs. (#4391)
* On a system with older kernel, reading `/proc/self/mountinfo` may skip some
entries, as a consequence runc may not properly set mount propagation,
causing container mounts leak onto the host mount namespace. (#2404, #4425)
### Removed
* In order to fix performance issues in the "lightweight" bindfd protection
against [CVE-2019-5736], the temporary `ro` bind-mount of `/proc/self/exe`
has been removed. runc now creates a binary copy in all cases. (#4392, #2532)
[CVE-2019-5736]: https://www.openwall.com/lists/oss-security/2019/02/11/2
## [1.1.14] - 2024-09-03
> 年を取っていいことは、驚かなくなることね。
### Security
* Fix [CVE-2024-45310][cve-2024-45310], a low-severity attack that allowed
maliciously configured containers to create empty files and directories on
the host.
[cve-2024-45310]: https://github.com/opencontainers/runc/security/advisories/GHSA-jfvp-7x6p-h2pv
### Added
* Add support for Go 1.23. (#4360, #4372)
### Fixed
* Revert "allow overriding VERSION value in Makefile" and add `EXTRA_VERSION`.
(#4370, #4382)
* rootfs: consolidate mountpoint creation logic. (#4359)
## [1.1.13] - 2024-06-13
> There is no certainty in the world. This is the only certainty I have.
### Important Notes
* If building with Go 1.22.x, make sure to use 1.22.4 or a later version.
(see #4233 for more details)
### Fixed
* Support go 1.22.4+. (#4313)
* runc list: fix race with runc delete. (#4231)
* Fix set nofile rlimit error. (#4277, #4299)
* libct/cg/fs: fix setting rt_period vs rt_runtime. (#4284)
* Fix a debug msg for user ns in nsexec. (#4315)
* script/*: fix gpg usage wrt keyboxd. (#4316)
* CI fixes and misc backports. (#4241)
* Fix codespell warnings. (#4300)
### Changed
* Silence security false positives from golang/net. (#4244)
* libcontainer: allow containers to make apps think fips is enabled/disabled for testing. (#4257)
* allow overriding VERSION value in Makefile. (#4270)
* Vagrantfile.fedora: bump Fedora to 39. (#4261)
* ci/cirrus: rm centos stream 8. (#4305, #4308)
## [1.1.12] - 2024-01-31
> Now you're thinking with Portals™!
### Security
* Fix [CVE-2024-21626][cve-2024-21626], a container breakout attack that took
advantage of a file descriptor that was leaked internally within runc (but
never leaked to the container process). In addition to fixing the leak,
several strict hardening measures were added to ensure that future internal
leaks could not be used to break out in this manner again. Based on our
research, while no other container runtime had a similar leak, none had any
of the hardening steps we've introduced (and some runtimes would not check
for any file descriptors that a calling process may have leaked to them,
allowing for container breakouts due to basic user error).
[cve-2024-21626]: https://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvv
## [1.1.11] - 2024-01-01
> Happy New Year!
### Fixed
* Fix several issues with userns path handling. (#4122, #4124, #4134, #4144)
### Changed
* Support memory.peak and memory.swap.peak in cgroups v2.
Add `swapOnlyUsage` in `MemoryStats`. This field reports swap-only usage.
For cgroupv1, `Usage` and `Failcnt` are set by subtracting memory usage
from memory+swap usage. For cgroupv2, `Usage`, `Limit`, and `MaxUsage`
are set. (#4000, #4010, #4131)
* build(deps): bump github.com/cyphar/filepath-securejoin. (#4140)
## [1.1.10] - 2023-10-31
> Śruba, przykręcona we śnie, nie zmieni sytuacji, jaka panuje na jawie.
### Added
* Support for `hugetlb.<pagesize>.rsvd` limiting and accounting. Fixes the
issue of postres failing when hugepage limits are set. (#3859, #4077)
### Fixed
* Fixed permissions of a newly created directories to not depend on the value
of umask in tmpcopyup feature implementation. (#3991, #4060)
* libcontainer: cgroup v1 GetStats now ignores missing `kmem.limit_in_bytes`
(fixes the compatibility with Linux kernel 6.1+). (#4028)
* Fix a semi-arbitrary cgroup write bug when given a malicious hugetlb
configuration. This issue is not a security issue because it requires a
malicious `config.json`, which is outside of our threat model. (#4103)
* Various CI fixes. (#4081, #4055)
## [1.1.9] - 2023-08-10
> There is a crack in everything. That's how the light gets in.
### Added
* Added go 1.21 to the CI matrix; other CI updates. (#3976, #3958)
### Fixed
* Fixed losing sticky bit on tmpfs (a regression in 1.1.8). (#3952, #3961)
* intelrdt: fixed ignoring ClosID on some systems. (#3550, #3978)
### Changed
* Sum `anon` and `file` from `memory.stat` for cgroupv2 root usage,
as the root does not have `memory.current` for cgroupv2.
This aligns cgroupv2 root usage more closely with cgroupv1 reporting.
Additionally, report root swap usage as sum of swap and memory usage,
aligned with v1 and existing non-root v2 reporting. (#3933)
## [1.1.8] - 2023-07-20
> 海纳百川 有容乃大
### Added
* Support riscv64. (#3905)
### Fixed
* init: do not print environment variable value. (#3879)
* libct: fix a race with systemd removal. (#3877)
* tests/int: increase num retries for oom tests. (#3891)
* man/runc: fixes. (#3892)
* Fix tmpfs mode opts when dir already exists. (#3916)
* docs/systemd: fix a broken link. (#3917)
* ci/cirrus: enable some rootless tests on cs9. (#3918)
* runc delete: call systemd's reset-failed. (#3932)
* libct/cg/sd/v1: do not update non-frozen cgroup after frozen failed. (#3921)
### Changed
* CI: bump Fedora, Vagrant, bats. (#3878)
* `.codespellrc`: update for 2.2.5. (#3909)
## [1.1.7] - 2023-04-26
> Ночевала тучка золотая на груди утеса-великана.
### Fixed
* When used with systemd v240+, systemd cgroup drivers no longer skip
`DeviceAllow` rules if the device does not exist (a regression introduced
in runc 1.1.3). This fix also reverts the workaround added in runc 1.1.5,
removing an extra warning emitted by runc run/start. (#3845, #3708, #3671)
### Added
* The source code now has a new file, `runc.keyring`, which contains the keys
used to sign runc releases. (#3838)
## [1.1.6] - 2023-04-11
> In this world nothing is certain but death and taxes.
### Compatibility
* This release can no longer be built from sources using Go 1.16. Using a
latest maintained Go 1.20.x or Go 1.19.x release is recommended.
Go 1.17 can still be used.
### Fixed
* systemd cgroup v1 and v2 drivers were deliberately ignoring `UnitExist` error
from systemd while trying to create a systemd unit, which in some scenarios
may result in a container not being added to the proper systemd unit and
cgroup. (#3780, #3806)
* systemd cgroup v2 driver was incorrectly translating cpuset range from spec's
`resources.cpu.cpus` to systemd unit property (`AllowedCPUs`) in case of more
than 8 CPUs, resulting in the wrong AllowedCPUs setting. (#3808)
* systemd cgroup v1 driver was prefixing container's cgroup path with the path
of PID 1 cgroup, resulting in inability to place PID 1 in a non-root cgroup.
(#3811)
* runc run/start may return "permission denied" error when starting a rootless
container when the file to be executed does not have executable bit set for
the user, not taking the `CAP_DAC_OVERRIDE` capability into account. This is
a regression in runc 1.1.4, as well as in Go 1.20 and 1.20.1 (#3715, #3817)
* cgroup v1 drivers are now aware of `misc` controller. (#3823)
* Various CI fixes and improvements, mostly to ensure Go 1.19.x and Go 1.20.x
compatibility.
## [1.1.5] - 2023-03-29
> 囚われた屈辱は
> 反撃の嚆矢だ
### Security
The following CVEs were fixed in this release:
* [CVE-2023-25809][] is a vulnerability involving rootless containers where
(under specific configurations), the container would have write access to the
`/sys/fs/cgroup/user.slice/...` cgroup hierarchy. No other hierarchies on the
host were affected. This vulnerability was discovered by Akihiro Suda.
* [CVE-2023-27561][] was a regression in our protections against tricky `/proc`
and `/sys` configurations (where the container mountpoint is a symlink)
causing us to be tricked into incorrectly configuring the container, which
effectively re-introduced [CVE-2019-19921][]. This regression was present
from v1.0.0-rc95 to v1.1.4 and was discovered by @Beuc. (#3785)
* [CVE-2023-28642][] is a different attack vector using the same regression
as in [CVE-2023-27561][]. This was reported by Lei Wang.
[CVE-2019-19921]: https://github.com/advisories/GHSA-fh74-hm69-rqjw
[CVE-2023-25809]: https://github.com/opencontainers/runc/security/advisories/GHSA-m8cg-xc2p-r3fc
[CVE-2023-27561]: https://github.com/advisories/GHSA-vpvm-3wq2-2wvm
[CVE-2023-28642]: https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c
### Fixed
* Fix the inability to use `/dev/null` when inside a container. (#3620)
* Fix changing the ownership of host's `/dev/null` caused by fd redirection
(a regression in 1.1.1). (#3674, #3731)
* Fix rare runc exec/enter unshare error on older kernels, including
CentOS < 7.7. (#3776)
* nsexec: Check for errors in `write_log()`. (#3721)
* Various CI fixes and updates. (#3618, #3630, #3640, #3729)
## [1.1.4] - 2022-08-24
> If you look for perfection, you'll never be content.
### Fixed
* Fix mounting via wrong proc fd.
When the user and mount namespaces are used, and the bind mount is followed by
the cgroup mount in the spec, the cgroup was mounted using the bind mount's
mount fd. (#3511)
* Switch `kill()` in `libcontainer/nsenter` to `sane_kill()`. (#3536)
* Fix "permission denied" error from `runc run` on `noexec` fs. (#3541)
* Fix failed exec after `systemctl daemon-reload`.
Due to a regression in v1.1.3, the `DeviceAllow=char-pts rwm` rule was no
longer added and was causing an error `open /dev/pts/0: operation not permitted: unknown`
when systemd was reloaded. (#3554)
* Various CI fixes. (#3538, #3558, #3562)
## [1.1.3] - 2022-06-09
> In the beginning there was nothing, which exploded.
### Fixed
* Our seccomp `-ENOSYS` stub now correctly handles multiplexed syscalls on
s390 and s390x. This solves the issue where syscalls the host kernel did not
support would return `-EPERM` despite the existence of the `-ENOSYS` stub
code (this was due to how s390x does syscall multiplexing). (#3478)
* Retry on dbus disconnect logic in libcontainer/cgroups/systemd now works as
intended; this fix does not affect runc binary itself but is important for
libcontainer users such as Kubernetes. (#3476)
* Inability to compile with recent clang due to an issue with duplicate
constants in libseccomp-golang. (#3477)
* When using systemd cgroup driver, skip adding device paths that don't exist,
to stop systemd from emitting warnings about those paths. (#3504)
* Socket activation was failing when more than 3 sockets were used. (#3494)
* Various CI fixes. (#3472, #3479)
### Added
* Allow to bind mount /proc/sys/kernel/ns_last_pid to inside container. (#3493)
### Changed
* runc static binaries are now linked against libseccomp v2.5.4. (#3481)
## [1.1.2] - 2022-05-11
> I should think I'm going to be a perpetual student.
### Security
* A bug was found in runc where runc exec --cap executed processes with
non-empty inheritable Linux process capabilities, creating an atypical Linux
environment. For more information, see [GHSA-f3fp-gc8g-vw66][] and
CVE-2022-29162.
### Changed
* `runc spec` no longer sets any inheritable capabilities in the created
example OCI spec (`config.json`) file.
[GHSA-f3fp-gc8g-vw66]: https://github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66
## [1.1.1] - 2022-03-28
> Violence is the last refuge of the incompetent.
### Added
* CI is now also run on centos-stream-9. (#3436)
### Fixed
* `runc run/start` can now run a container with read-only `/dev` in OCI spec,
rather than error out. (#3355)
* `runc exec` now ensures that `--cgroup` argument is a sub-cgroup. (#3403)
* libcontainer systemd v2 manager no longer errors out if one of the files
listed in `/sys/kernel/cgroup/delegate` do not exist in container's cgroup.
(#3387, #3404)
* Loose OCI spec validation to avoid bogus "Intel RDT is not supported" error.
(#3406)
* libcontainer/cgroups no longer panics in cgroup v1 managers if `stat`
of `/sys/fs/cgroup/unified` returns an error other than ENOENT. (#3435)
## [1.1.0] - 2022-01-14
> A plan depends as much upon execution as it does upon concept.
### Changed
* libcontainer will now refuse to build without the nsenter package being
correctly compiled (specifically this requires CGO to be enabled). This
should avoid folks accidentally creating broken runc binaries (and
incorrectly importing our internal libraries into their projects). (#3331)
## [1.1.0-rc.1] - 2021-12-14
> He who controls the spice controls the universe.
### Deprecated
* runc run/start now warns if a new container cgroup is non-empty or frozen;
this warning will become an error in runc 1.2. (#3132, #3223)
* runc can only be built with Go 1.16 or later from this release onwards.
(#3100, #3245, #3325)
### Removed
* `cgroup.GetHugePageSizes` has been removed entirely, and been replaced with
`cgroup.HugePageSizes` which is more efficient. (#3234)
* `intelrdt.GetIntelRdtPath` has been removed. Users who were using this
function to get the intelrdt root should use the new `intelrdt.Root`
instead. (#2920, #3239)
### Added
* Add support for RDMA cgroup added in Linux 4.11. (#2883)
* runc exec now produces exit code of 255 when the exec failed.
This may help in distinguishing between runc exec failures
(such as invalid options, non-running container or non-existent
binary etc.) and failures of the command being executed. (#3073)
* runc run: new `--keep` option to skip removal exited containers artefacts.
This might be useful to check the state (e.g. of cgroup controllers) after
the container has exited. (#2817, #2825)
* seccomp: add support for `SCMP_ACT_KILL_PROCESS` and `SCMP_ACT_KILL_THREAD`
(the latter is just an alias for `SCMP_ACT_KILL`). (#3204)
* seccomp: add support for `SCMP_ACT_NOTIFY` (seccomp actions). This allows
users to create sophisticated seccomp filters where syscalls can be
efficiently emulated by privileged processes on the host. (#2682)
* checkpoint/restore: add an option (`--lsm-mount-context`) to set
a different LSM mount context on restore. (#3068)
* runc releases are now cross-compiled for several architectures. Static
builds for said architectures will be available for all future releases.
(#3197)
* intelrdt: support ClosID parameter. (#2920)
* runc exec --cgroup: an option to specify a (non-top) in-container cgroup
to use for the process being executed. (#3040, #3059)
* cgroup v1 controllers now support hybrid hierarchy (i.e. when on a cgroup v1
machine a cgroup2 filesystem is mounted to /sys/fs/cgroup/unified, runc
run/exec now adds the container to the appropriate cgroup under it). (#2087,
#3059)
* sysctl: allow slashes in sysctl names, to better match `sysctl(8)`'s
behaviour. (#3254, #3257)
* mounts: add support for bind-mounts which are inaccessible after switching
the user namespace. Note that this does not permit the container any
additional access to the host filesystem, it simply allows containers to
have bind-mounts configured for paths the user can access but have
restrictive access control settings for other users. (#2576)
* Add support for recursive mount attributes using `mount_setattr(2)`. These
have the same names as the proposed `mount(8)` options -- just prepend `r`
to the option name (such as `rro`). (#3272)
* Add `runc features` subcommand to allow runc users to detect what features
runc has been built with. This includes critical information such as
supported mount flags, hook names, and so on. Note that the output of this
command is subject to change and will not be considered stable until runc
1.2 at the earliest. The runtime-spec specification for this feature is
being developed in [opencontainers/runtime-spec#1130]. (#3296)
[opencontainers/runtime-spec#1130]: https://github.com/opencontainers/runtime-spec/pull/1130
### Changed
* system: improve performance of `/proc/$pid/stat` parsing. (#2696)
* cgroup2: when `/sys/fs/cgroup` is configured as a read-write mount, change
the ownership of certain cgroup control files (as per
`/sys/kernel/cgroup/delegate`) to allow for proper deferral to the container
process. (#3057)
* docs: series of improvements to man pages to make them easier to read and
use. (#3032)
#### libcontainer API
* internal api: remove internal error types and handling system, switch to Go
wrapped errors. (#3033)
* New configs.Cgroup structure fields (#3177):
* Systemd (whether to use systemd cgroup manager); and
* Rootless (whether to use rootless cgroups).
* New cgroups/manager package aiming to simplify cgroup manager instantiation.
(#3177)
* All cgroup managers' instantiation methods now initialize cgroup paths and
can return errors. This allows to use any cgroup manager method (e.g.
Exists, Destroy, Set, GetStats) right after instantiation, which was not
possible before (as paths were initialized in Apply only). (#3178)
### Fixed
* nsenter: do not try to close already-closed fds during container setup and
bail on close(2) failures. (#3058)
* runc checkpoint/restore: fixed for containers with an external bind mount
which destination is a symlink. (#3047).
* cgroup: improve openat2 handling for cgroup directory handle hardening.
(#3030)
* `runc delete -f` now succeeds (rather than timing out) on a paused
container. (#3134)
* runc run/start/exec now refuses a frozen cgroup (paused container in case of
exec). Users can disable this using `--ignore-paused`. (#3132, #3223)
* config: do not permit null bytes in mount fields. (#3287)
## [1.0.3] - 2021-12-06
> If you were waiting for the opportune moment, that was it.
### Security
* A potential vulnerability was discovered in runc (related to an internal
usage of netlink), however upon further investigation we discovered that
while this bug was exploitable on the master branch of runc, no released
version of runc could be exploited using this bug. The exploit required being
able to create a netlink attribute with a length that would overflow a uint16
but this was not possible in any released version of runc. For more
information, see [GHSA-v95c-p5hm-xq8f][] and CVE-2021-43784.
### Fixed
* Fixed inability to start a container with read-write bind mount of a
read-only fuse host mount. (#3283, #3292)
* Fixed inability to start when read-only /dev in set in spec. (#3276, #3277)
* Fixed not removing sub-cgroups upon container delete, when rootless cgroup v2
is used with older systemd. (#3226, #3297)
* Fixed returning error from GetStats when hugetlb is unsupported (which causes
excessive logging for Kubernetes). (#3233, #3295)
* Improved an error message when dbus-user-session is not installed and
rootless + cgroup2 + systemd are used. (#3212)
[GHSA-v95c-p5hm-xq8f]: https://github.com/opencontainers/runc/security/advisories/GHSA-v95c-p5hm-xq8f
## [1.0.2] - 2021-07-16
> Given the right lever, you can move a planet.
### Changed
* Made release builds reproducible from now on. (#3099, #3142)
### Fixed
* Fixed a failure to set CPU quota period in some cases on cgroup v1. (#3090
#3115)
* Fixed the inability to start a container with the "adding seccomp filter
rule for syscall ..." error, caused by redundant seccomp rules (i.e. those
that has action equal to the default one). Such redundant rules are now
skipped. (#3109, #3129)
* Fixed a rare debug log race in runc init, which can result in occasional
harmful "failed to decode ..." errors from runc run or exec. (#3120, #3130)
* Fixed the check in cgroup v1 systemd manager if a container needs to be
frozen before Set, and add a setting to skip such freeze unconditionally.
The previous fix for that issue, done in runc 1.0.1, was not working.
(#3166, #3167)
## [1.0.1] - 2021-07-16
> If in doubt, Meriadoc, always follow your nose.
### Fixed
* Fixed occasional runc exec/run failure ("interrupted system call") on an
Azure volume. (#3045, #3074)
* Fixed "unable to find groups ... token too long" error with /etc/group
containing lines longer than 64K characters. (#3062, #3079)
* cgroup/systemd/v1: fix leaving cgroup frozen after Set if a parent cgroup is
frozen. This is a regression in 1.0.0, not affecting runc itself but some
of libcontainer users (e.g Kubernetes). (#3081, #3085)
* cgroupv2: bpf: Ignore inaccessible existing programs in case of
permission error when handling replacement of existing bpf cgroup
programs. This fixes a regression in 1.0.0, where some SELinux
policies would block runc from being able to run entirely. (#3055, #3087)
* cgroup/systemd/v2: don't freeze cgroup on Set. (#3067, #3092)
* cgroup/systemd/v1: avoid unnecessary freeze on Set. (#3082, #3093)
## [1.0.0] - 2021-06-22
> A wizard is never late, nor is he early, he arrives precisely when he means
> to.
As runc follows Semantic Versioning, we will endeavour to not make any
breaking changes without bumping the major version number of runc.
However, it should be noted that Go API usage of runc's internal
implementation (libcontainer) is *not* covered by this policy.
### Removed
* Removed libcontainer/configs.Device* identifiers (deprecated since rc94,
use libcontainer/devices). (#2999)
* Removed libcontainer/system.RunningInUserNS function (deprecated since
rc94, use libcontainer/userns). (#2999)
### Deprecated
* The usage of relative paths for mountpoints will now produce a warning
(such configurations are outside of the spec, and in future runc will
produce an error when given such configurations). (#2917, #3004)
### Fixed
* cgroupv2: devices: rework the filter generation to produce consistent
results with cgroupv1, and always clobber any existing eBPF
program(s) to fix `runc update` and avoid leaking eBPF programs
(resulting in errors when managing containers). (#2951)
* cgroupv2: correctly convert "number of IOs" statistics in a
cgroupv1-compatible way. (#2965, #2967, #2968, #2964)
* cgroupv2: support larger than 32-bit IO statistics on 32-bit architectures.
* cgroupv2: wait for freeze to finish before returning from the freezing
code, optimize the method for checking whether a cgroup is frozen. (#2955)
* cgroups/systemd: fixed "retry on dbus disconnect" logic introduced in rc94
* cgroups/systemd: fixed returning "unit already exists" error from a systemd
cgroup manager (regression in rc94). (#2997, #2996)
### Added
* cgroupv2: support SkipDevices with systemd driver. (#2958, #3019)
* cgroup1: blkio: support BFQ weights. (#3010)
* cgroupv2: set per-device io weights if BFQ IO scheduler is available.
(#3022)
### Changed
* cgroup/systemd: return, not ignore, stop unit error from Destroy. (#2946)
* Fix all golangci-lint failures. (#2781, #2962)
* Make `runc --version` output sane even when built with `go get` or
otherwise outside of our build scripts. (#2962)
* cgroups: set SkipDevices during runc update (so we don't modify
cgroups at all during `runc update`). (#2994)
<!-- minor releases -->
[Unreleased]: https://github.com/opencontainers/runc/compare/v1.3.0-rc.1...HEAD
[1.2.0]: https://github.com/opencontainers/runc/compare/v1.2.0-rc.1...v1.2.0
[1.1.0]: https://github.com/opencontainers/runc/compare/v1.1.0-rc.1...v1.1.0
[1.0.0]: https://github.com/opencontainers/runc/releases/tag/v1.0.0
<!-- 1.0.z patch releases -->
[Unreleased 1.0.z]: https://github.com/opencontainers/runc/compare/v1.0.3...release-1.0
[1.0.3]: https://github.com/opencontainers/runc/compare/v1.0.2...v1.0.3
[1.0.2]: https://github.com/opencontainers/runc/compare/v1.0.1...v1.0.2
[1.0.1]: https://github.com/opencontainers/runc/compare/v1.0.0...v1.0.1
<!-- 1.1.z patch releases -->
[Unreleased 1.1.z]: https://github.com/opencontainers/runc/compare/v1.1.15...release-1.1
[1.1.15]: https://github.com/opencontainers/runc/compare/v1.1.14...v1.1.15
[1.1.14]: https://github.com/opencontainers/runc/compare/v1.1.13...v1.1.14
[1.1.13]: https://github.com/opencontainers/runc/compare/v1.1.12...v1.1.13
[1.1.12]: https://github.com/opencontainers/runc/compare/v1.1.11...v1.1.12
[1.1.11]: https://github.com/opencontainers/runc/compare/v1.1.10...v1.1.11
[1.1.10]: https://github.com/opencontainers/runc/compare/v1.1.9...v1.1.10
[1.1.9]: https://github.com/opencontainers/runc/compare/v1.1.8...v1.1.9
[1.1.8]: https://github.com/opencontainers/runc/compare/v1.1.7...v1.1.8
[1.1.7]: https://github.com/opencontainers/runc/compare/v1.1.6...v1.1.7
[1.1.6]: https://github.com/opencontainers/runc/compare/v1.1.5...v1.1.6
[1.1.5]: https://github.com/opencontainers/runc/compare/v1.1.4...v1.1.5
[1.1.4]: https://github.com/opencontainers/runc/compare/v1.1.3...v1.1.4
[1.1.3]: https://github.com/opencontainers/runc/compare/v1.1.2...v1.1.3
[1.1.2]: https://github.com/opencontainers/runc/compare/v1.1.1...v1.1.2
[1.1.1]: https://github.com/opencontainers/runc/compare/v1.1.0...v1.1.1
[1.1.0-rc.1]: https://github.com/opencontainers/runc/compare/v1.0.0...v1.1.0-rc.1
<!-- 1.2.z patch releases -->
[Unreleased 1.2.z]: https://github.com/opencontainers/runc/compare/v1.2.5...release-1.2
[1.2.5]: https://github.com/opencontainers/runc/compare/v1.2.4...v1.2.5
[1.2.4]: https://github.com/opencontainers/runc/compare/v1.2.3...v1.2.4
[1.2.3]: https://github.com/opencontainers/runc/compare/v1.2.2...v1.2.3
[1.2.2]: https://github.com/opencontainers/runc/compare/v1.2.1...v1.2.2
[1.2.1]: https://github.com/opencontainers/runc/compare/v1.2.0...v1.2.1
[1.2.0-rc.3]: https://github.com/opencontainers/runc/compare/v1.2.0-rc.2...v1.2.0-rc.3
[1.2.0-rc.2]: https://github.com/opencontainers/runc/compare/v1.2.0-rc.1...v1.2.0-rc.2
[1.2.0-rc.1]: https://github.com/opencontainers/runc/compare/v1.1.0...v1.2.0-rc.1
<!-- 1.3.z patch releases -->
[1.3.0-rc.1]: https://github.com/opencontainers/runc/compare/v1.2.0...v1.3.0-rc.1
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