tree 84fdc09b19d8564983ee4b39dd5183782417071e
parent 7e814a6c50a1669118ffa4961568fea3aa955faf
author Matthew Leach <matthew.leach@arm.com> 1394539107 +0000
committer David S. Miller <davem@davemloft.net> 1394656164 -0400

net: socket: error on a negative msg_namelen

When copying in a struct msghdr from the user, if the user has set the
msg_namelen parameter to a negative value it gets clamped to a valid
size due to a comparison between signed and unsigned values.

Ensure the syscall errors when the user passes in a negative value.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>