diff options
| author | Todd Kjos <tkjos@android.com> | 2017-06-29 21:01:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-17 14:44:19 +0200 |
| commit | c4ea41ba195d01c9af66fb28711a16cc97caa9c5 (patch) | |
| tree | 5cfe300d999b4f73470931423fb439a20a089caa | |
| parent | Revert "android: binder: Sanity check at binder ioctl" (diff) | |
| download | linux-c4ea41ba195d01c9af66fb28711a16cc97caa9c5.tar.xz linux-c4ea41ba195d01c9af66fb28711a16cc97caa9c5.zip | |
binder: use group leader instead of open thread
The binder allocator assumes that the thread that
called binder_open will never die for the lifetime of
that proc. That thread is normally the group_leader,
however it may not be. Use the group_leader instead
of current.
Signed-off-by: Todd Kjos <tkjos@google.com>
Cc: stable <stable@vger.kernel.org> # 4.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/android/binder.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 157bd3e49ff4..9393924ae8e8 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -3460,8 +3460,8 @@ static int binder_open(struct inode *nodp, struct file *filp) proc = kzalloc(sizeof(*proc), GFP_KERNEL); if (proc == NULL) return -ENOMEM; - get_task_struct(current); - proc->tsk = current; + get_task_struct(current->group_leader); + proc->tsk = current->group_leader; INIT_LIST_HEAD(&proc->todo); init_waitqueue_head(&proc->wait); proc->default_priority = task_nice(current); |