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-rw-r--r--kernel/user_namespace.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index f82730adea00..0d9c51d67333 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -19,6 +19,7 @@ static struct user_namespace *clone_user_ns(struct user_namespace *old_ns)
{
struct user_namespace *ns;
struct user_struct *new_user;
+ struct cred *new;
int n;
ns = kmalloc(sizeof(struct user_namespace), GFP_KERNEL);
@@ -45,7 +46,16 @@ static struct user_namespace *clone_user_ns(struct user_namespace *old_ns)
return ERR_PTR(-ENOMEM);
}
- switch_uid(new_user);
+ /* Install the new user */
+ new = prepare_creds();
+ if (!new) {
+ free_uid(new_user);
+ free_uid(ns->root_user);
+ kfree(ns);
+ }
+ free_uid(new->user);
+ new->user = new_user;
+ commit_creds(new);
return ns;
}