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linux-next/net/netlink
Eric W. Biederman 90f62cf30a net: Use netlink_ns_capable to verify the permisions of netlink messages
It is possible by passing a netlink socket to a more privileged
executable and then to fool that executable into writing to the socket
data that happens to be valid netlink message to do something that
privileged executable did not intend to do.

To keep this from happening replace bare capable and ns_capable calls
with netlink_capable, netlink_net_calls and netlink_ns_capable calls.
Which act the same as the previous calls except they verify that the
opener of the socket had the desired permissions as well.

Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-24 13:44:54 -04:00
..
af_netlink.c net: Add variants of capable for use on netlink messages 2014-04-24 13:44:54 -04:00
af_netlink.h netlink: autosize skb lengthes 2014-03-10 13:56:26 -04:00
diag.c netlink: Fix build with mmap disabled. 2013-04-23 15:39:03 -04:00
genetlink.c net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-04-24 13:44:54 -04:00
Kconfig netlink: kconfig: move mmap i/o into netlink kconfig 2013-05-01 15:02:42 -04:00
Makefile netlink: Diag core and basic socket info dumping (v2) 2013-03-21 12:38:03 -04:00