- Update to runc v1.0.3. Upstream changelog is available from
https://github.com/opencontainers/runc/releases/tag/v1.0.3. CVE-2021-43784

* 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.

Due to an abundance of caution we decided to do an emergency release with
this fix, but to reiterate we do not believe this vulnerability was
possible to exploit. Thanks to Felix Wilhelm from Google Project Zero for
discovering and reporting this vulnerability so quickly.
* Fixed inability to start a container with read-write bind mount of a
read-only fuse host mount.
* Fixed inability to start when read-only /dev in set in spec.
* Fixed not removing sub-cgroups upon container delete, when rootless cgroup
v2 is used with older systemd.
* Fixed returning error from GetStats when hugetlb is unsupported (which
causes excessive logging for kubernetes).