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| author | Dan Čermák <dcermak@suse.com> | 2022-09-21 23:09:10 +0200 |
|---|---|---|
| committer | Dan Čermák <dcermak@suse.com> | 2022-09-22 16:44:26 +0200 |
| commit | 5a2405ae1b3a51a7fb1f01de89bd6b2c60416f08 (patch) | |
| tree | 75d118cca1ec243b737e883651bbb6229e41722f /test | |
| parent | 828fae12971c5a7b9807c8c4f8e029fe5d0ddc2f (diff) | |
| download | podman-5a2405ae1b3a51a7fb1f01de89bd6b2c60416f08.tar.gz podman-5a2405ae1b3a51a7fb1f01de89bd6b2c60416f08.tar.bz2 podman-5a2405ae1b3a51a7fb1f01de89bd6b2c60416f08.zip | |
Don't mount /dev/tty* inside privileged containers running systemd
According to https://systemd.io/CONTAINER_INTERFACE/, systemd will try take
control over /dev/ttyN if exported, which can cause conflicts with the host's tty
in privileged containers. Thus we will not expose these to privileged containers
in systemd mode, as this is a bad idea according to systemd's maintainers.
Additionally, this commit adds a bats regression test to check that no /dev/ttyN
are present in a privileged container in systemd mode
This fixes https://github.com/containers/podman/issues/15878
Signed-off-by: Dan Čermák <dcermak@suse.com>
Diffstat (limited to 'test')
| -rw-r--r-- | test/system/030-run.bats | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/system/030-run.bats b/test/system/030-run.bats index 2abf749a1..65a1150a3 100644 --- a/test/system/030-run.bats +++ b/test/system/030-run.bats @@ -901,4 +901,22 @@ $IMAGE--c_ok" \ run_podman rm $ctr_name } +@test "podman run --privileged as root with systemd will not mount /dev/tty" { + skip_if_rootless "this test only makes sense as root" + + ctr_name="container-$(random_string 5)" + run_podman run --rm -d --privileged --systemd=always --name "$ctr_name" "$IMAGE" /home/podman/pause + + TTYs=$(ls /dev/tty*|sed '/^\/dev\/tty$/d') + + if [[ $TTYs = "" ]]; then + die "Did not find any /dev/ttyN devices on local host" + else + run_podman exec "$ctr_name" ls /dev/ + assert "$(grep tty <<<$output)" = "tty" "There must be no /dev/ttyN devices in the container" + fi + + run_podman stop "$ctr_name" +} + # vim: filetype=sh |