opencontainers/runc

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CLI tool for spawning and running containers according to the OCI specification

Stars: 13.5k
Forks: 2.3k
Open beginner issues: 2
Indexed issues: 263
Avg merge: 2d 8h
Merged PRs (30d): 30

Dominant language: Go
License: Apache-2.0
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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263 open issues indexed

`--preserve-fds` leaks runc's own file descriptors when fewer FDs are actually passed Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

opencontainers/runc#5474 · Opened Sep 15, 2026
rshared propagation (bind mount options and rootfsPropagation) silently results in private mounts; Kubernetes mountPropagation=Bidirectional inert (runc 1.4.2) Open

llm-generated

Difficulty 4/5 3-5 days Newbie friendliness 50/100

opencontainers/runc#5390 · 3 comments · Opened Aug 8, 2026
Add an optional pre-exec wait FIFO to `runc exec` Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

opencontainers/runc#5373 · 1 reaction · Opened Jul 16, 2026
`root.readonly` is silently ignored (rootfs left writable) when the container has no mount namespace Open

llm-generated

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

opencontainers/runc#5371 · Opened Jul 15, 2026
`runc state` reports a CRIU-restored container as `running` after its process has exited Open

llm-generated

Difficulty 2/5 1-3 hours Newbie friendliness 90/100

opencontainers/runc#5370 · Opened Jul 14, 2026
Validate mount options for null bytes (\u0000) early to provide clearer error messages Open

Difficulty 3/5 1-2 days Newbie friendliness 64/100

opencontainers/runc#5320 · 7 comments · Opened Jun 14, 2026
error mounting "sysfs" to rootfs at "/sys" when creating pod with hostUsers: false and privileged:true with kind Open

kind/question

Difficulty 4/5 3-5 days Newbie friendliness 46/100

opencontainers/runc#5309 · 3 comments · Opened Jun 2, 2026
Prestart hooks fail during CRIU restore: container mount tree not yet restored at setup-namespaces notification Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

opencontainers/runc#5296 · 1 comment · 1 reaction · Opened May 22, 2026
/proc/self/exe and page-cache poisoning Open

opencontainers/runc#5272 · 11 comments · 1 reaction · 1 assignee · Opened May 10, 2026
cgroup v2: unsafe cgroupfs mount when cgroup namespace is disabled Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

opencontainers/runc#5258 · 8 comments · Opened Apr 20, 2026
exec.fifo handling is way too complicated Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

opencontainers/runc#5251 · 5 comments · 1 reaction · Opened Apr 16, 2026
In my test, the versions 1.2.8-1.4.1 of runc do not support the parameter "tty:true" for Kubernetes pods. The containers remain in the process of creation. Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

opencontainers/runc#5176 · 6 comments · Opened Mar 16, 2026
feature: PoC to mknod devices for user namespace containers Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#5137 · 3 comments · Opened Mar 3, 2026
Add integration test to checkpoint / restore container with userns and non default host id Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

opencontainers/runc#5121 · 5 comments · Opened Feb 20, 2026
[RFC] Explicit kernel version requirements? Open

area/docs

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#5113 · 3 comments · Opened Feb 11, 2026
Indefinite parent hang in ReadPacket upon abnormal child exit after procRun Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

opencontainers/runc#5087 · 5 comments · Opened Jan 17, 2026
runc use systemd driver cause oom event lost because file memory.events delete too quickly Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opencontainers/runc#5071 · 5 comments · Opened Dec 15, 2025
runc cannot mount host root as container root (`[...] is on the top of rootfs [...]`) Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

opencontainers/runc#5070 · 10 comments · Opened Dec 15, 2025
runc selinux library use 100% cpu Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opencontainers/runc#5048 · 1 comment · Opened Nov 27, 2025
Ordering problem with ExecCPUAffinity and sched_setaffinity Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#5036 · 1 comment · Opened Nov 20, 2025
Fail build if libseccomp below some minimum version? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

opencontainers/runc#5002 · 4 comments · Opened Nov 12, 2025
[rfc] LLM policy? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4990 · 12 comments · 47 reactions · Opened Nov 9, 2025
cgroupv1 has been deprecated (will be maintained until May 2029) Open

area/cgroupv1

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4955 · Opened Oct 31, 2025
Enhancement: Add option to delete all stopped containers in `runc delete` Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

opencontainers/runc#4933 · 2 comments · Opened Oct 14, 2025
releases: add Docker image to release artefacts Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opencontainers/runc#4929 · Opened Oct 13, 2025
rshared submount is not clearly umount in host Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

opencontainers/runc#4849 · 2 comments · Opened Aug 11, 2025
Feature add VTPM support for runc container Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4843 · 1 comment · Opened Aug 7, 2025
All read-only mounts set through the CSI plugin have failed. Open

kind/question status/needs-more-information

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opencontainers/runc#4824 · 7 comments · Opened Jul 31, 2025
container main process cpu affinity is different on different kernel Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

opencontainers/runc#4814 · Opened Jul 16, 2025
cgroup2: confusing error when `linux.resources.cpu.shares=1` Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

opencontainers/runc#4755 · 2 comments · Opened May 1, 2025
[RFC] Which runc version should we set in the /VERSION file on the main branch? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4681 · 5 comments · Opened Mar 14, 2025
[rfc] crun extension compatibility Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

opencontainers/runc#4642 · 9 comments · 1 reaction · Opened Feb 25, 2025
Can not checkpoint container created with nvidia-container-runtime (mounted gpu) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

opencontainers/runc#4522 · 4 comments · Opened Nov 11, 2024
Release binaries should be built on the CI, not on a maintainer's host Open

area/ci enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4502 · Opened Nov 1, 2024
Rook (ceph) fails to start correctly after upgrading to runc 1.2.0 Open

status/needs-more-information

Difficulty 4/5 3-5 days Newbie friendliness 30/100

opencontainers/runc#4483 · 5 comments · 1 reaction · Opened Oct 28, 2024
runc hang on init when containerd set up Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

opencontainers/runc#4481 · 17 comments · Opened Oct 28, 2024
can't start nginx image with runc and user namespaces (works with crun) Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

opencontainers/runc#4475 · 16 comments · Opened Oct 25, 2024
RunC post-copy checkpoint failed Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

opencontainers/runc#4451 · 4 comments · Opened Oct 17, 2024
Can't work for rootless if no read permission to runc binary Open

area/rootless kind/question

Difficulty 4/5 3-5 days Newbie friendliness 25/100

opencontainers/runc#4449 · 7 comments · Opened Oct 16, 2024
ci: race in TestExecIn Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

opencontainers/runc#4437 · 3 comments · Opened Oct 10, 2024
[tracking issue] deprecation of insecure --no-pivot flag Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

opencontainers/runc#4435 · 1 reaction · Opened Oct 10, 2024
Treating unknown/unavailable capabilities Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4426 · 7 comments · Opened Oct 4, 2024
runc init can't communicate with runc start Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

opencontainers/runc#4402 · 2 comments · Opened Sep 13, 2024
The removal of container root directory should be after poststop run successfully. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

opencontainers/runc#4363 · 4 comments · Opened Aug 1, 2024
runc aways open "/proc/sys/kernel/cap_last_cap" Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opencontainers/runc#4356 · 5 comments · Opened Jul 22, 2024
Flaky test: TestFdLeaks Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

opencontainers/runc#4297 · 3 comments · Opened May 30, 2024
runc update: cpu period and cpu burst being reset to defaults after an unrelated update Open

area/cgroupv2 area/systemd kind/bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opencontainers/runc#4225 · 8 comments · Opened Mar 17, 2024
BPF programs installed by libcontainer are not distinguished Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

opencontainers/runc#4180 · Opened Jan 26, 2024
Reasons that can't use runc-dmz Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

opencontainers/runc#4158 · Opened Jan 1, 2024
runc can not wait process in the container exits when share pid namespace Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

opencontainers/runc#4145 · 4 comments · Opened Dec 15, 2023

opencontainers/runc

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