diff options
| -rw-r--r-- | security/keys/keyctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c index 0291b3f9397c..f1b59ae39d7e 100644 --- a/security/keys/keyctl.c +++ b/security/keys/keyctl.c @@ -1486,6 +1486,7 @@ long keyctl_session_to_parent(void) oldwork = NULL; parent = me->real_parent; + task_lock(parent); /* the parent mustn't be init and mustn't be a kernel thread */ if (parent->pid <= 1 || !parent->mm) goto unlock; @@ -1529,6 +1530,7 @@ long keyctl_session_to_parent(void) if (!ret) newwork = NULL; unlock: + task_unlock(parent); write_unlock_irq(&tasklist_lock); rcu_read_unlock(); if (oldwork) |