binder: use group leader instead of open thread
commit c4ea41ba195d01c9af66fb28711a16cc97caa9c5 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 2 deletions
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@ -2966,8 +2966,8 @@ static int binder_open(struct inode *nodp, struct file *filp)
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proc = kzalloc(sizeof(*proc), GFP_KERNEL);
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if (proc == NULL)
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return -ENOMEM;
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get_task_struct(current);
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proc->tsk = current;
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get_task_struct(current->group_leader);
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proc->tsk = current->group_leader;
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INIT_LIST_HEAD(&proc->todo);
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init_waitqueue_head(&proc->wait);
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proc->default_priority = task_nice(current);
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