linux/net/rose
Willem de Bruijn f4979fcea7 rose: limit sk_filter trim to payload
Sockets can have a filter program attached that drops or trims
incoming packets based on the filter program return value.

Rose requires data packets to have at least ROSE_MIN_LEN bytes. It
verifies this on arrival in rose_route_frame and unconditionally pulls
the bytes in rose_recvmsg. The filter can trim packets to below this
value in-between, causing pull to fail, leaving the partial header at
the time of skb_copy_datagram_msg.

Place a lower bound on the size to which sk_filter may trim packets
by introducing sk_filter_trim_cap and call this for rose packets.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-13 11:53:40 -07:00
..
Makefile
af_rose.c
rose_dev.c
rose_in.c rose: limit sk_filter trim to payload 2016-07-13 11:53:40 -07:00
rose_link.c
rose_loopback.c
rose_out.c
rose_route.c
rose_subr.c
rose_timer.c
sysctl_net_rose.c