In binder_alloc_free_page of binder_alloc.c, there is a possible double
free due to improper locking. This could lead to local escalation of
privilege in the kernel with no additional execution privileges needed.
User interaction is not needed for exploitation. Product: Android.
Versions: Android kernel. Android ID: A-120025196.

It was discovered that a race condition existed in the Binder IPC driver
for the Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code.