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runc exec --cgroup can join a prefix-colliding sibling cgroup on cgroup v1

area/cgroupv1

Status: Open.

#5351 In opencontainers/runc;

· Ftres opened on Jun 28, 2026

fs2/freezer: cgroup.freeze is not reset on freeze timeout (unlike cgroup v1)

Status: Open.

#5325 In opencontainers/runc;

· MrWiffer opened on Jun 17, 2026

Validate mount options for null bytes (\u0000) early to provide clearer error messages

Status: Open.

#5320 In opencontainers/runc;

· 74suiko opened on Jun 14, 2026

error mounting "sysfs" to rootfs at "/sys" when creating pod with hostUsers: false and privileged:true with kind

kind/question

Status: Open.

#5309 In opencontainers/runc;

· yesdeepakverma opened on Jun 2, 2026

Prestart hooks fail during CRIU restore: container mount tree not yet restored at setup-namespaces notification

Status: Open.

#5296 In opencontainers/runc;

· ifishland opened on May 22, 2026

/proc/self/exe and page-cache poisoning

Status: Open.

#5272 In opencontainers/runc;

· cyphar opened on May 10, 2026

·  

1.6.0-rc.1

cgroup v2: unsafe cgroupfs mount when cgroup namespace is disabled

Status: Open.

#5258 In opencontainers/runc;

· xujihui1985 opened on Apr 20, 2026

exec.fifo handling is way too complicated

Status: Open.

#5251 In opencontainers/runc;

· cyphar opened on Apr 16, 2026

rfc: enabling immutable releases?

Status: Open.

#5193 In opencontainers/runc;

· cyphar opened on Mar 23, 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.

Status: Open.

#5176 In opencontainers/runc;

· wqzgithub opened on Mar 16, 2026

feature: PoC to mknod devices for user namespace containers

Status: Open.

#5137 In opencontainers/runc;

· everzakov opened on Mar 3, 2026

Add integration test to checkpoint / restore container with userns and non default host id

Status: Open.

#5121 In opencontainers/runc;

· everzakov opened on Feb 20, 2026