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| author | Krishna Kumar <krkumar2@in.ibm.com> | 2011-04-14 10:07:04 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-18 10:27:16 +0400 |
| commit | 0553c891fabd287726b41076cfd03fe7e5ab596f (patch) | |
| tree | 6b8b7074ff457e1533e8c397e09c03cd86ddc76e /net/ipv4/inet_connection_sock.c | |
| parent | 70dda99c41fc8a153e09bdba9adb7805ba2a4bb3 (diff) | |
| download | linux-0553c891fabd287726b41076cfd03fe7e5ab596f.tar.xz | |
ip6_pol_route panic: Do not allow VLAN on loopback
Several tests in the ipv6 routing code check IFF_LOOPBACK, and
allowing stacking such as VLAN'ing on top of loopback results in a
netdevice which reports IFF_LOOPBACK but really isn't the loopback
device.
Instead of spamming the ipv6 routing code with even more special tests,
simply disallow VLAN over loopback.
The result of this patch is:
# modprobe 8021q
# vconfig add lo 43
ERROR: trying to add VLAN #43 to IF -:lo:- error: Operation not supported
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_connection_sock.c')
0 files changed, 0 insertions, 0 deletions