Clear the filter memory area before using it. Leaving it uninitialized may leak previous kernel stack contents through a malicioius BPF filter.
Clear the filter memory area before using it. Leaving it uninitialized may
leak previous kernel stack contents through a malicioius BPF filter.

PR:		kern/158880
Submitted by:	Guy Harris
Obtained from:	OpenBSD
MFC after:	1 week

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