Fixes the following security issues:
- CVE-2019-19921: runc volume mount race condition with shared mounts
- CVE-2019-16884: runc through 1.0.0-rc8, as used in Docker through
19.03.2-ce and other products, allows AppArmor restriction bypass because
libcontainer/rootfs_linux.go incorrectly checks mount targets, and thus a
malicious Docker image can mount over a /proc directory.
For details, see the announcement:
https://github.com/containerd/containerd/releases/tag/v1.2.12
containerd is now a separate CNCF sponsored project, and is no longer
explicitly associated with docker/moby.
Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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