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| author | Eric W. Biederman <ebiederm@xmission.com> | 2013-03-22 10:10:15 (GMT) |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2013-03-27 14:50:04 (GMT) |
| commit | 90563b198e4c6674c63672fae1923da467215f45 (patch) | |
| tree | aa8528c1c23dccbeca409059ec5f5d21ca1318bf /drivers/isdn/hysdn/hysdn_proclog.c | |
| parent | 3151527ee007b73a0ebd296010f1c0454a919c7d (diff) | |
| download | linux-fsl-qoriq-90563b198e4c6674c63672fae1923da467215f45.tar.xz | |
vfs: Add a mount flag to lock read only bind mounts
When a read-only bind mount is copied from mount namespace in a higher
privileged user namespace to a mount namespace in a lesser privileged
user namespace, it should not be possible to remove the the read-only
restriction.
Add a MNT_LOCK_READONLY mount flag to indicate that a mount must
remain read-only.
CC: stable@vger.kernel.org
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'drivers/isdn/hysdn/hysdn_proclog.c')
0 files changed, 0 insertions, 0 deletions