From: Pekka Enberg <penberg@xxxxxxxxxxxxxx>Signed-Off-By: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
This patch adds double-free detection to redzone verification when freeing
an object. As explained by Manfred, when we are freeing an object, both
redzones should be RED_ACTIVE. However, if both are RED_INACTIVE, we are
trying to free an object that was already free'd.
Cc: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxxxxxx>