diff options
| author | Mickaël Salaün <mic@digikod.net> | 2023-10-26 09:47:41 +0800 |
|---|---|---|
| committer | Mickaël Salaün <mic@digikod.net> | 2023-10-26 21:07:10 +0200 |
| commit | d7220364039f6beb76f311c05f74cad89da5fad5 (patch) | |
| tree | 194f8b69bae8b29035d3db2045c356d44827be36 /Documentation/userspace-api | |
| parent | 13fc6455fa19b0859e1b9640bf09903bec8df4f4 (diff) | |
landlock: Allow FS topology changes for domains without such rule type
Allow mount point and root directory changes when there is no filesystem
rule tied to the current Landlock domain. This doesn't change anything
for now because a domain must have at least a (filesystem) rule, but
this will change when other rule types will come. For instance, a domain
only restricting the network should have no impact on filesystem
restrictions.
Add a new get_current_fs_domain() helper to quickly check filesystem
rule existence for all filesystem LSM hooks.
Remove unnecessary inlining.
Link: https://lore.kernel.org/r/20231026014751.414649-3-konstantin.meskhidze@huawei.com
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Diffstat (limited to 'Documentation/userspace-api')
| -rw-r--r-- | Documentation/userspace-api/landlock.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/userspace-api/landlock.rst b/Documentation/userspace-api/landlock.rst index d8cd8cd9ce25..f6a7da21708a 100644 --- a/Documentation/userspace-api/landlock.rst +++ b/Documentation/userspace-api/landlock.rst @@ -387,9 +387,9 @@ Current limitations Filesystem topology modification -------------------------------- -As for file renaming and linking, a sandboxed thread cannot modify its -filesystem topology, whether via :manpage:`mount(2)` or -:manpage:`pivot_root(2)`. However, :manpage:`chroot(2)` calls are not denied. +Threads sandboxed with filesystem restrictions cannot modify filesystem +topology, whether via :manpage:`mount(2)` or :manpage:`pivot_root(2)`. +However, :manpage:`chroot(2)` calls are not denied. Special filesystems ------------------- |