diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2009-04-27 01:41:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-08 15:45:05 -0700 |
| commit | 2c9ca2baf3f368a2b747124d39bf31b779eb7571 (patch) | |
| tree | 2d3dc50134612270220a40cad0adcb914b95adad | |
| parent | f63f698922fc8f57a11d7eba1db8ee6e7519ea7f (diff) | |
ptrace: ptrace_attach: fix the usage of ->cred_exec_mutex
commit cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb upstream.
ptrace_attach() needs task->cred_exec_mutex, not current->cred_exec_mutex.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | kernel/ptrace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index c9cf48b21f05..dc3b98ef10bb 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -186,7 +186,7 @@ int ptrace_attach(struct task_struct *task) /* Protect exec's credential calculations against our interference; * SUID, SGID and LSM creds get determined differently under ptrace. */ - retval = mutex_lock_interruptible(¤t->cred_exec_mutex); + retval = mutex_lock_interruptible(&task->cred_exec_mutex); if (retval < 0) goto out; @@ -230,7 +230,7 @@ repeat: bad: write_unlock_irqrestore(&tasklist_lock, flags); task_unlock(task); - mutex_unlock(¤t->cred_exec_mutex); + mutex_unlock(&task->cred_exec_mutex); out: return retval; } |