tree 1cb59a7d0c0f4dc4d59536e5c75ccdc1f9f390d6
parent 52b81611f209da5f49019260522633e994e241b5
author Xu YiPing <xuyiping@hisilicon.com> 1504632112 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1505743560 +0200

binder: fix memory corruption in binder_transaction binder

commit 7a4408c6bd3e ("binder: make sure accesses to proc/thread are
safe") made a change to enqueue tcomplete to thread->todo before
enqueuing the transaction. However, in err_dead_proc_or_thread case,
the tcomplete is directly freed, without dequeued. It may cause the
thread->todo list to be corrupted.

So, dequeue it before freeing.

Fixes: 7a4408c6bd3e ("binder: make sure accesses to proc/thread are safe")
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>