There is a race between the binder driver cleaning up a completed transaction via binder_free_transaction() and a user calling binder_ioctl(BC_FREE_BUFFER) to release a buffer. It doesn't matter which is first but they need to be protected against running concurrently which can result in a UAF. Signed-off-by: Todd Kjos <tkjos@google.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Kconfig | ||
Makefile | ||
binder.c | ||
binder_alloc.c | ||
binder_alloc.h | ||
binder_alloc_selftest.c | ||
binder_internal.h | ||
binder_trace.h | ||
binderfs.c |