aboutsummaryrefslogtreecommitdiff
path: root/kernel/ptrace.c
diff options
context:
space:
mode:
authorOleg Nesterov <oleg@redhat.com>2009-04-27 01:41:34 +0200
committerJames Morris <jmorris@namei.org>2009-04-27 20:30:51 +1000
commitcad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb (patch)
tree8d056ddb9db3db5eeba6a6fb629efe2c05b67ea0 /kernel/ptrace.c
parentce8a7424d23a36f043d0de8484f888971c831119 (diff)
downloadlinux-2.6.34-ux500-cad81bc2529ab8c62b6fdc83a1c0c7f4a87209eb.tar.gz
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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index dfcd83ceee3..0692ab5a0d6 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(&current->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(&current->cred_exec_mutex);
+ mutex_unlock(&task->cred_exec_mutex);
out:
return retval;
}