mirror of https://github.com/mkerrisk/man-pages
user_namespaces.7: Linux 3.9 provides a better implementation of nonoverlapping map checks
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
parent
e4f4f2e125
commit
df23ae04d6
|
@ -311,11 +311,15 @@ can't be used to write to nonzero offsets in the file).
|
||||||
The range of user IDs (group IDs)
|
The range of user IDs (group IDs)
|
||||||
specified in each line cannot overlap with the ranges
|
specified in each line cannot overlap with the ranges
|
||||||
in any other lines.
|
in any other lines.
|
||||||
In the current implementation (Linux 3.8), this requirement is
|
In the initial implementation (Linux 3.8), this requirement was
|
||||||
satisfied by a simplistic implementation that imposes the further
|
satisfied by a simplistic implementation that imposed the further
|
||||||
requirement that
|
requirement that
|
||||||
the values in both field 1 and field 2 of successive lines must be
|
the values in both field 1 and field 2 of successive lines must be
|
||||||
in ascending numerical order.
|
in ascending numerical order,
|
||||||
|
which prevented some otherwise valid maps from being created.
|
||||||
|
Linux 3.9 and later
|
||||||
|
.\" commit 0bd14b4fd72afd5df41e9fd59f356740f22fceba
|
||||||
|
fix this limitation, allowing any valid set of nonoverlapping maps.
|
||||||
.IP *
|
.IP *
|
||||||
The mapped user IDs (group IDs) must in turn have a mapping
|
The mapped user IDs (group IDs) must in turn have a mapping
|
||||||
in the parent user namespace.
|
in the parent user namespace.
|
||||||
|
|
Loading…
Reference in New Issue