diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
| commit | 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch) | |
| tree | e9891aa6c295060d065adffd610c4f49ecf884f3 /kernel/user_namespace.c | |
| parent | a71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff) | |
Linux-libre 4.3.2-gnu
Diffstat (limited to 'kernel/user_namespace.c')
| -rw-r--r-- | kernel/user_namespace.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index 4109f8320..88fefa68c 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -39,6 +39,7 @@ static void set_cred_user_ns(struct cred *cred, struct user_namespace *user_ns) cred->cap_inheritable = CAP_EMPTY_SET; cred->cap_permitted = CAP_FULL_SET; cred->cap_effective = CAP_FULL_SET; + cred->cap_ambient = CAP_EMPTY_SET; cred->cap_bset = CAP_FULL_SET; #ifdef CONFIG_KEYS key_put(cred->request_key_auth); @@ -976,8 +977,8 @@ static int userns_install(struct nsproxy *nsproxy, struct ns_common *ns) if (user_ns == current_user_ns()) return -EINVAL; - /* Threaded processes may not enter a different user namespace */ - if (atomic_read(¤t->mm->mm_users) > 1) + /* Tasks that share a thread group must share a user namespace */ + if (!thread_group_empty(current)) return -EINVAL; if (current->fs->users != 1) |