diff options
| author | Romain Francoise <romain@orebokech.com> | 2011-01-17 07:59:18 +0000 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2012-03-14 10:57:50 -0400 |
| commit | da3a3ee57bc3af9c5c89b62cf79c2117b22a5597 (patch) | |
| tree | d955c8a2f444997f444954b9b407a7c221185293 /net | |
| parent | 351a3535bb4008bf65fdc581f9413b59f51db9d6 (diff) | |
ipv6: Silence privacy extensions initialization
commit 2fdc1c8093255f9da877d7b9ce3f46c2098377dc upstream.
When a network namespace is created (via CLONE_NEWNET), the loopback
interface is automatically added to the new namespace, triggering a
printk in ipv6_add_dev() if CONFIG_IPV6_PRIVACY is set.
This is problematic for applications which use CLONE_NEWNET as
part of a sandbox, like Chromium's suid sandbox or recent versions of
vsftpd. On a busy machine, it can lead to thousands of useless
"lo: Disabled Privacy Extensions" messages appearing in dmesg.
It's easy enough to check the status of privacy extensions via the
use_tempaddr sysctl, so just removing the printk seems like the most
sensible solution.
Signed-off-by: Romain Francoise <romain@orebokech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/addrconf.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 844ffc5a7420..34ad669b57d4 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -408,9 +408,6 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) dev->type == ARPHRD_TUNNEL6 || dev->type == ARPHRD_SIT || dev->type == ARPHRD_NONE) { - printk(KERN_INFO - "%s: Disabled Privacy Extensions\n", - dev->name); ndev->cnf.use_tempaddr = -1; } else { in6_dev_hold(ndev); |