diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-12-27 22:27:29 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2013-01-26 22:12:04 -0800 |
| commit | 0bd14b4fd72afd5df41e9fd59f356740f22fceba (patch) | |
| tree | bf1bc8dfa507ca40970927efb2dd87b4f5bdd416 /Documentation/namespaces | |
| parent | c61a2810a2161986353705b44d9503e6bb079f4f (diff) | |
| download | lwn-0bd14b4fd72afd5df41e9fd59f356740f22fceba.tar.gz lwn-0bd14b4fd72afd5df41e9fd59f356740f22fceba.zip | |
userns: Allow any uid or gid mappings that don't overlap.
When I initially wrote the code for /proc/<pid>/uid_map. I was lazy
and avoided duplicate mappings by the simple expedient of ensuring the
first number in a new extent was greater than any number in the
previous extent.
Unfortunately that precludes a number of valid mappings, and someone
noticed and complained. So use a simple check to ensure that ranges
in the mapping extents don't overlap.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'Documentation/namespaces')
0 files changed, 0 insertions, 0 deletions