diff options
| author | Noah Orlando <Noah.Orlando@deshaw.com> | 2026-07-06 14:25:59 -0400 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-07-31 10:09:09 +0200 |
| commit | 0342482a4d15358fe6931606caf58968de5d1d38 (patch) | |
| tree | 86ff2b658368103a546c313a3480331999bf53a2 /tools/tracing/rtla/tests/scripts/lib/git@git.tavy.me:linux.git | |
| parent | 30248be5702dfb88a3cc14b7e738566aab3c84dd (diff) | |
put_mnt_ns(): leave mounts connected
When a mount namespace is destroyed, put_mnt_ns() disconnects its mounts
from their mount points. A file descriptor still open on the parent of a
mount point can then be used to look under the mount point.
Locked mounts are kept connected to prevent this. However, a mount is
only locked when its tree is copied across a user namespace boundary. A
mount namespace set up by a privileged component has no locked mounts,
so its mounts are disconnected.
Pass UMOUNT_CONNECTED so every mount is kept connected, as locked mounts
already are.
Signed-off-by: Noah Orlando <Noah.Orlando@deshaw.com>
Link: https://patch.msgid.link/20260706182559.2496448-2-Noah.Orlando@deshaw.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Diffstat (limited to 'tools/tracing/rtla/tests/scripts/lib/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions