diff options
Diffstat (limited to 'security/keys/keyctl.c')
| -rw-r--r-- | security/keys/keyctl.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index 0f5b3f02729..26723caaad0 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -1456,7 +1456,8 @@ long keyctl_session_to_parent(void) { struct task_struct *me, *parent; const struct cred *mycred, *pcred; - struct task_work *newwork, *oldwork; + struct kludge *newwork; + struct task_work *oldwork; key_ref_t keyring_r; struct cred *cred; int ret; @@ -1466,7 +1467,7 @@ long keyctl_session_to_parent(void) return PTR_ERR(keyring_r); ret = -ENOMEM; - newwork = kmalloc(sizeof(struct task_work), GFP_KERNEL); + newwork = kmalloc(sizeof(struct kludge), GFP_KERNEL); if (!newwork) goto error_keyring; @@ -1478,7 +1479,8 @@ long keyctl_session_to_parent(void) goto error_newwork; cred->tgcred->session_keyring = key_ref_to_ptr(keyring_r); - init_task_work(newwork, key_change_session_keyring, cred); + init_task_work(&newwork->twork, key_change_session_keyring); + newwork->cred = cred; me = current; rcu_read_lock(); @@ -1527,18 +1529,18 @@ long keyctl_session_to_parent(void) /* the replacement session keyring is applied just prior to userspace * restarting */ - ret = task_work_add(parent, newwork, true); + ret = task_work_add(parent, &newwork->twork, true); if (!ret) newwork = NULL; unlock: write_unlock_irq(&tasklist_lock); rcu_read_unlock(); if (oldwork) { - put_cred(oldwork->data); + put_cred(container_of(oldwork, struct kludge, twork)->cred); kfree(oldwork); } if (newwork) { - put_cred(newwork->data); + put_cred(newwork->cred); kfree(newwork); } return ret; |