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| author | Oleg Nesterov <oleg@redhat.com> | 2009-04-27 01:41:34 +0200 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-04-27 20:30:51 +1000 |
| commit | cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb (patch) | |
| tree | 8d056ddb9db3db5eeba6a6fb629efe2c05b67ea0 /kernel/ptrace.c | |
| parent | ce8a7424d23a36f043d0de8484f888971c831119 (diff) | |
| download | lwn-cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb.tar.gz lwn-cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb.zip | |
ptrace: ptrace_attach: fix the usage of ->cred_exec_mutex
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>
Diffstat (limited to 'kernel/ptrace.c')
| -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 dfcd83ceee3b..0692ab5a0d67 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -188,7 +188,7 @@ 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; @@ -232,7 +232,7 @@ 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; } |