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| author | Serge E. Hallyn <serge@hallyn.com> | 2011-03-23 16:43:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-23 19:47:07 -0700 |
| commit | b515498f5bb5f38fc0e390b4ff7d00b6077de127 (patch) | |
| tree | b76dfc56415adee9aec5d8619124059ed3ab02a5 /kernel/nsproxy.c | |
| parent | fc832ad3645f0507f24d11752544525a50a83c71 (diff) | |
| download | lwn-b515498f5bb5f38fc0e390b4ff7d00b6077de127.tar.gz lwn-b515498f5bb5f38fc0e390b4ff7d00b6077de127.zip | |
userns: add a user namespace owner of ipc ns
Changelog:
Feb 15: Don't set new ipc->user_ns if we didn't create a new
ipc_ns.
Feb 23: Move extern declaration to ipc_namespace.h, and group
fwd declarations at top.
Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Daniel Lezcano <daniel.lezcano@free.fr>
Acked-by: David Howells <dhowells@redhat.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/nsproxy.c')
| -rw-r--r-- | kernel/nsproxy.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c index b97fc9d04ddf..ac8a56e90bf8 100644 --- a/kernel/nsproxy.c +++ b/kernel/nsproxy.c @@ -80,6 +80,11 @@ static struct nsproxy *create_new_namespaces(unsigned long flags, err = PTR_ERR(new_nsp->ipc_ns); goto out_ipc; } + if (new_nsp->ipc_ns != tsk->nsproxy->ipc_ns) { + put_user_ns(new_nsp->ipc_ns->user_ns); + new_nsp->ipc_ns->user_ns = task_cred_xxx(tsk, user)->user_ns; + get_user_ns(new_nsp->ipc_ns->user_ns); + } new_nsp->pid_ns = copy_pid_ns(flags, task_active_pid_ns(tsk)); if (IS_ERR(new_nsp->pid_ns)) { |