Use create=false when calling getCheckpointDir
Fix#33263
Signed-off-by: Jacob Wen <jian.w.wen@oracle.com>
Upstream-commit: c0d2ec1eb585a31e3d7734aef7acb753644c49c0
Component: engine
This fix tries to address the issue raised in 28769 where
checkpoint name was not checked before passing to containerd.
As a result, it was possible to use a special checkpoint name
to get outside of the container's directory.
This fix add restriction `[a-zA-Z0-9][a-zA-Z0-9_.-]+` (`RestrictedNamePattern`).
This is the same as container name restriction.
This fix fixes 28769.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: c90ec0517544e7d054d79f71f4d24d9ebbad7408
Component: engine
