* [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl()
@ 2007-12-06 13:52 Pavel Emelyanov
2007-12-06 13:59 ` Patrick McHardy
0 siblings, 1 reply; 5+ messages in thread
From: Pavel Emelyanov @ 2007-12-06 13:52 UTC (permalink / raw)
To: David Miller, Patrick McHardy; +Cc: Linux Netdev List, devel
The SET_VLAN_NAME_TYPE_CMD command w/o CAP_NET_ADMIN capability
doesn't release the rtnl lock.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
---
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 6567213..5b18315 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -776,7 +776,7 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
case SET_VLAN_NAME_TYPE_CMD:
err = -EPERM;
if (!capable(CAP_NET_ADMIN))
- return -EPERM;
+ break;
if ((args.u.name_type >= 0) &&
(args.u.name_type < VLAN_NAME_TYPE_HIGHEST)) {
vlan_name_type = args.u.name_type;
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl()
2007-12-06 13:52 [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl() Pavel Emelyanov
@ 2007-12-06 13:59 ` Patrick McHardy
2007-12-06 14:01 ` David Miller
2007-12-07 6:52 ` David Miller
0 siblings, 2 replies; 5+ messages in thread
From: Patrick McHardy @ 2007-12-06 13:59 UTC (permalink / raw)
To: Pavel Emelyanov; +Cc: David Miller, Linux Netdev List, devel
Pavel Emelyanov wrote:
> The SET_VLAN_NAME_TYPE_CMD command w/o CAP_NET_ADMIN capability
> doesn't release the rtnl lock.
Thanks Pavel. I somehow recall that we already fixed this
one, but can't find the patch :) Dave, please apply.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl()
2007-12-06 13:59 ` Patrick McHardy
@ 2007-12-06 14:01 ` David Miller
2007-12-06 14:10 ` Patrick McHardy
2007-12-07 6:52 ` David Miller
1 sibling, 1 reply; 5+ messages in thread
From: David Miller @ 2007-12-06 14:01 UTC (permalink / raw)
To: kaber; +Cc: xemul, netdev, devel
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 06 Dec 2007 14:59:24 +0100
> Pavel Emelyanov wrote:
> > The SET_VLAN_NAME_TYPE_CMD command w/o CAP_NET_ADMIN capability
> > doesn't release the rtnl lock.
>
>
> Thanks Pavel. I somehow recall that we already fixed this
> one, but can't find the patch :) Dave, please apply.
I think we even added this bug to -stable, or something like
that, didn't we? Yikes...
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl()
2007-12-06 14:01 ` David Miller
@ 2007-12-06 14:10 ` Patrick McHardy
0 siblings, 0 replies; 5+ messages in thread
From: Patrick McHardy @ 2007-12-06 14:10 UTC (permalink / raw)
To: David Miller; +Cc: xemul, netdev, devel
David Miller wrote:
> From: Patrick McHardy <kaber@trash.net>
> Date: Thu, 06 Dec 2007 14:59:24 +0100
>
>> Pavel Emelyanov wrote:
>>> The SET_VLAN_NAME_TYPE_CMD command w/o CAP_NET_ADMIN capability
>>> doesn't release the rtnl lock.
>>
>> Thanks Pavel. I somehow recall that we already fixed this
>> one, but can't find the patch :) Dave, please apply.
>
> I think we even added this bug to -stable, or something like
> that, didn't we? Yikes...
No, I mixed those two patches up as well. The bug was introduced
with the vlan_netlink stuff, the -stable patch fixed an invalid
return value, but still properly dropped the lock.
This patch should of course go in -stable anyway.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl()
2007-12-06 13:59 ` Patrick McHardy
2007-12-06 14:01 ` David Miller
@ 2007-12-07 6:52 ` David Miller
1 sibling, 0 replies; 5+ messages in thread
From: David Miller @ 2007-12-07 6:52 UTC (permalink / raw)
To: kaber; +Cc: xemul, netdev, devel
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 06 Dec 2007 14:59:24 +0100
> Pavel Emelyanov wrote:
> > The SET_VLAN_NAME_TYPE_CMD command w/o CAP_NET_ADMIN capability
> > doesn't release the rtnl lock.
>
>
> Thanks Pavel. I somehow recall that we already fixed this
> one, but can't find the patch :) Dave, please apply.
Applied and I'll push to -stable once Linus pulls it in.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-12-07 6:52 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-12-06 13:52 [PATCH][VLAN] Lost rtnl_unlock() in vlan_ioctl() Pavel Emelyanov
2007-12-06 13:59 ` Patrick McHardy
2007-12-06 14:01 ` David Miller
2007-12-06 14:10 ` Patrick McHardy
2007-12-07 6:52 ` David Miller
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).