[PATCH] namespaces: exit_task_namespaces() invalidates nsproxy
exit_task_namespaces() has replaced the former exit_namespace(). It
invalidates task->nsproxy and associated namespaces. This is an issue for
the (futur) pid namespace which is required to be valid in exit_notify().
This patch moves exit_task_namespaces() after exit_notify() to keep nsproxy
valid.
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Andrey Savochkin <saw@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/exit.c b/kernel/exit.c
index 741bbe4..f250a5e 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -920,7 +920,6 @@
exit_sem(tsk);
__exit_files(tsk);
__exit_fs(tsk);
- exit_task_namespaces(tsk);
exit_thread();
cpuset_exit(tsk);
exit_keys(tsk);
@@ -935,6 +934,7 @@
tsk->exit_code = code;
proc_exit_connector(tsk);
exit_notify(tsk);
+ exit_task_namespaces(tsk);
#ifdef CONFIG_NUMA
mpol_free(tsk->mempolicy);
tsk->mempolicy = NULL;
