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>
parent
c9ffebdd
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