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[test] #3513

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19 changes: 19 additions & 0 deletions tests/integration/userns.bats
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Original file line number Diff line number Diff line change
Expand Up @@ -64,3 +64,22 @@ function teardown() {
runc exec test_busybox stat /tmp/mount-1/foo.txt /tmp/mount-2/foo.txt
[ "$status" -eq 0 ]
}

# Issue fixed by https://github.com/opencontainers/runc/pull/3510.
@test "userns with bind mount before a cgroupfs mount" {
# This can only be reproduced on cgroup v1 (and no cgroupns) due to the
# way it is mounted in such case (a bunch of of bind mounts).
requires cgroups_v1

# Add a bind mount right before the /sys/fs/cgroup mount,
# and make sure cgroupns is not enabled.
update_config ' .mounts |= map(if .destination == "/sys/fs/cgroup" then ({"source": "source-accessible/dir", "destination": "/tmp/mount-1", "options": ["bind"]}, .) else . end)
| .linux.namespaces -= [{"type": "cgroup"}]'

runc run -d --console-socket "$CONSOLE_SOCKET" test_busybox
[ "$status" -eq 0 ]

# Make sure this is real cgroupfs.
runc exec test_busybox cat /sys/fs/cgroup/{pids,memory}/tasks
[ "$status" -eq 0 ]
}