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econet: fix CVE-2010-3850

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Add missing check for capable(CAP_NET_ADMIN) in SIOCSIFADDR operation.

Signed-off-by: Phil Blundell <philb@gnu.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phil Blundell 2010-11-24 11:49:53 -08:00 committed by David S. Miller
parent fa0e846494
commit 16c41745c7
1 changed files with 3 additions and 0 deletions
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3
net/econet/af_econet.c
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@ -661,6 +661,9 @@ static int ec_dev_ioctl(struct socket *sock, unsigned int cmd, void __user *arg)
err = 0;
switch (cmd) {
case SIOCSIFADDR:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
edev = dev->ec_ptr;
if (edev == NULL) {
/* Magic up a new one. */