[patch 2/2] Use find_task_by_vpid in audit code

The pid to lookup a task by is passed inside audit code via netlink message.

Thanks to Denis Lunev, netlink packets are now (since 2.6.24) _always_
processed in the context of the sending task.  So this is correct to lookup
the task with find_task_by_vpid() here.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/audit.c b/kernel/audit.c
index f4799eb6977a..b7d3709cc452 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -455,7 +455,7 @@ static int audit_prepare_user_tty(pid_t pid, uid_t loginuid, u32 sessionid)
         int err;
 
         read_lock(&tasklist_lock);
-        tsk = find_task_by_pid(pid);
+        tsk = find_task_by_vpid(pid);
         err = -ESRCH;
         if (!tsk)
                 goto out;
@@ -871,7 +871,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                 struct task_struct *tsk;
 
                 read_lock(&tasklist_lock);
-                tsk = find_task_by_pid(pid);
+                tsk = find_task_by_vpid(pid);
                 if (!tsk)
                         err = -ESRCH;
                 else {
@@ -894,7 +894,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                 if (s->enabled != 0 && s->enabled != 1)
                         return -EINVAL;
                 read_lock(&tasklist_lock);
-                tsk = find_task_by_pid(pid);
+                tsk = find_task_by_vpid(pid);
                 if (!tsk)
                         err = -ESRCH;
                 else {