tree 7eb16c965917dd917b545cccfc5a4d1fff1854d6
parent c9ffebdde8deccf9ea3a7a97bcd84de0a35ddad7
author Christoph Hellwig <hch@lst.de> 1595484525 +0200
committer David S. Miller <davem@davemloft.net> 1595630513 -0700

bpfilter: reject kernel addresses

The bpfilter user mode helper processes the optval address using
process_vm_readv.  Don't send it kernel addresses fed under
set_fs(KERNEL_DS) as that won't work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>