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Diffstat (limited to 'kernel/cred.c')
-rw-r--r--kernel/cred.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/kernel/cred.c b/kernel/cred.c
index 8ef31f53c44c..bb55d052d858 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -644,6 +644,9 @@ void __init cred_init(void)
*/
struct cred *prepare_kernel_cred(struct task_struct *daemon)
{
+#ifdef CONFIG_KEYS
+ struct thread_group_cred *tgcred;
+#endif
const struct cred *old;
struct cred *new;
@@ -651,6 +654,14 @@ struct cred *prepare_kernel_cred(struct task_struct *daemon)
if (!new)
return NULL;
+#ifdef CONFIG_KEYS
+ tgcred = kmalloc(sizeof(*tgcred), GFP_KERNEL);
+ if (!tgcred) {
+ kmem_cache_free(cred_jar, new);
+ return NULL;
+ }
+#endif
+
kdebug("prepare_kernel_cred() alloc %p", new);
if (daemon)
@@ -667,8 +678,11 @@ struct cred *prepare_kernel_cred(struct task_struct *daemon)
get_group_info(new->group_info);
#ifdef CONFIG_KEYS
- atomic_inc(&init_tgcred.usage);
- new->tgcred = &init_tgcred;
+ atomic_set(&tgcred->usage, 1);
+ spin_lock_init(&tgcred->lock);
+ tgcred->process_keyring = NULL;
+ tgcred->session_keyring = NULL;
+ new->tgcred = tgcred;
new->request_key_auth = NULL;
new->thread_keyring = NULL;
new->jit_keyring = KEY_REQKEY_DEFL_THREAD_KEYRING;