* [PATCH v3] openvswitch: allow management from inside user namespaces
@ 2016-02-05 16:20 ` Tycho Andersen
0 siblings, 0 replies; 6+ messages in thread
From: Tycho Andersen @ 2016-02-05 16:20 UTC (permalink / raw)
To: Pravin Shelar, David S. Miller
Cc: netdev-u79uwXL29TY76Z2rM5mHXA,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Eric Biederman,
Justin Pettit
Operations with the GENL_ADMIN_PERM flag fail permissions checks because
this flag means we call netlink_capable, which uses the init user ns.
Instead, let's introduce a new flag, GENL_UNS_ADMIN_PERM for operations
which should be allowed inside a user namespace.
The motivation for this is to be able to run openvswitch in unprivileged
containers. I've tested this and it seems to work, but I really have no
idea about the security consequences of this patch, so thoughts would be
much appreciated.
v2: use the GENL_UNS_ADMIN_PERM flag instead of a check in each function
v3: use separate ifs for UNS_ADMIN_PERM and ADMIN_PERM, instead of one
massive one
Reported-by: James Page <james.page-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Signed-off-by: Tycho Andersen <tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
CC: Eric Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
CC: Pravin Shelar <pshelar-LZ6Gd1LRuIk@public.gmane.org>
CC: Justin Pettit <jpettit-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
CC: "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
---
include/uapi/linux/genetlink.h | 1 +
net/netlink/genetlink.c | 4 ++++
net/openvswitch/datapath.c | 20 ++++++++++----------
3 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h
index c3363ba..5512c90 100644
--- a/include/uapi/linux/genetlink.h
+++ b/include/uapi/linux/genetlink.h
@@ -21,6 +21,7 @@ struct genlmsghdr {
#define GENL_CMD_CAP_DO 0x02
#define GENL_CMD_CAP_DUMP 0x04
#define GENL_CMD_CAP_HASPOL 0x08
+#define GENL_UNS_ADMIN_PERM 0x10
/*
* List of reserved static generic netlink identifiers:
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f830326..0ffd721 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -580,6 +580,10 @@ static int genl_family_rcv_msg(struct genl_family *family,
!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;
+ if ((ops->flags & GENL_UNS_ADMIN_PERM) &&
+ !netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN))
+ return -EPERM;
+
if ((nlh->nlmsg_flags & NLM_F_DUMP) == NLM_F_DUMP) {
int rc;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index deadfda..d6f7fe9 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -654,7 +654,7 @@ static const struct nla_policy packet_policy[OVS_PACKET_ATTR_MAX + 1] = {
static const struct genl_ops dp_packet_genl_ops[] = {
{ .cmd = OVS_PACKET_CMD_EXECUTE,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = packet_policy,
.doit = ovs_packet_cmd_execute
}
@@ -1391,12 +1391,12 @@ static const struct nla_policy flow_policy[OVS_FLOW_ATTR_MAX + 1] = {
static const struct genl_ops dp_flow_genl_ops[] = {
{ .cmd = OVS_FLOW_CMD_NEW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = flow_policy,
.doit = ovs_flow_cmd_new
},
{ .cmd = OVS_FLOW_CMD_DEL,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = flow_policy,
.doit = ovs_flow_cmd_del
},
@@ -1407,7 +1407,7 @@ static const struct genl_ops dp_flow_genl_ops[] = {
.dumpit = ovs_flow_cmd_dump
},
{ .cmd = OVS_FLOW_CMD_SET,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = flow_policy,
.doit = ovs_flow_cmd_set,
},
@@ -1777,12 +1777,12 @@ static const struct nla_policy datapath_policy[OVS_DP_ATTR_MAX + 1] = {
static const struct genl_ops dp_datapath_genl_ops[] = {
{ .cmd = OVS_DP_CMD_NEW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = datapath_policy,
.doit = ovs_dp_cmd_new
},
{ .cmd = OVS_DP_CMD_DEL,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = datapath_policy,
.doit = ovs_dp_cmd_del
},
@@ -1793,7 +1793,7 @@ static const struct genl_ops dp_datapath_genl_ops[] = {
.dumpit = ovs_dp_cmd_dump
},
{ .cmd = OVS_DP_CMD_SET,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = datapath_policy,
.doit = ovs_dp_cmd_set,
},
@@ -2158,12 +2158,12 @@ static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
static const struct genl_ops dp_vport_genl_ops[] = {
{ .cmd = OVS_VPORT_CMD_NEW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = vport_policy,
.doit = ovs_vport_cmd_new
},
{ .cmd = OVS_VPORT_CMD_DEL,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = vport_policy,
.doit = ovs_vport_cmd_del
},
@@ -2174,7 +2174,7 @@ static const struct genl_ops dp_vport_genl_ops[] = {
.dumpit = ovs_vport_cmd_dump
},
{ .cmd = OVS_VPORT_CMD_SET,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = vport_policy,
.doit = ovs_vport_cmd_set,
},
--
2.5.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH v3] openvswitch: allow management from inside user namespaces
@ 2016-02-05 16:20 ` Tycho Andersen
0 siblings, 0 replies; 6+ messages in thread
From: Tycho Andersen @ 2016-02-05 16:20 UTC (permalink / raw)
To: Pravin Shelar, David S. Miller
Cc: netdev, linux-kernel, containers, Tycho Andersen, Eric Biederman,
Justin Pettit
Operations with the GENL_ADMIN_PERM flag fail permissions checks because
this flag means we call netlink_capable, which uses the init user ns.
Instead, let's introduce a new flag, GENL_UNS_ADMIN_PERM for operations
which should be allowed inside a user namespace.
The motivation for this is to be able to run openvswitch in unprivileged
containers. I've tested this and it seems to work, but I really have no
idea about the security consequences of this patch, so thoughts would be
much appreciated.
v2: use the GENL_UNS_ADMIN_PERM flag instead of a check in each function
v3: use separate ifs for UNS_ADMIN_PERM and ADMIN_PERM, instead of one
massive one
Reported-by: James Page <james.page@canonical.com>
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
CC: Eric Biederman <ebiederm@xmission.com>
CC: Pravin Shelar <pshelar@ovn.org>
CC: Justin Pettit <jpettit@nicira.com>
CC: "David S. Miller" <davem@davemloft.net>
---
include/uapi/linux/genetlink.h | 1 +
net/netlink/genetlink.c | 4 ++++
net/openvswitch/datapath.c | 20 ++++++++++----------
3 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h
index c3363ba..5512c90 100644
--- a/include/uapi/linux/genetlink.h
+++ b/include/uapi/linux/genetlink.h
@@ -21,6 +21,7 @@ struct genlmsghdr {
#define GENL_CMD_CAP_DO 0x02
#define GENL_CMD_CAP_DUMP 0x04
#define GENL_CMD_CAP_HASPOL 0x08
+#define GENL_UNS_ADMIN_PERM 0x10
/*
* List of reserved static generic netlink identifiers:
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f830326..0ffd721 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -580,6 +580,10 @@ static int genl_family_rcv_msg(struct genl_family *family,
!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;
+ if ((ops->flags & GENL_UNS_ADMIN_PERM) &&
+ !netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN))
+ return -EPERM;
+
if ((nlh->nlmsg_flags & NLM_F_DUMP) == NLM_F_DUMP) {
int rc;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index deadfda..d6f7fe9 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -654,7 +654,7 @@ static const struct nla_policy packet_policy[OVS_PACKET_ATTR_MAX + 1] = {
static const struct genl_ops dp_packet_genl_ops[] = {
{ .cmd = OVS_PACKET_CMD_EXECUTE,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = packet_policy,
.doit = ovs_packet_cmd_execute
}
@@ -1391,12 +1391,12 @@ static const struct nla_policy flow_policy[OVS_FLOW_ATTR_MAX + 1] = {
static const struct genl_ops dp_flow_genl_ops[] = {
{ .cmd = OVS_FLOW_CMD_NEW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = flow_policy,
.doit = ovs_flow_cmd_new
},
{ .cmd = OVS_FLOW_CMD_DEL,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = flow_policy,
.doit = ovs_flow_cmd_del
},
@@ -1407,7 +1407,7 @@ static const struct genl_ops dp_flow_genl_ops[] = {
.dumpit = ovs_flow_cmd_dump
},
{ .cmd = OVS_FLOW_CMD_SET,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = flow_policy,
.doit = ovs_flow_cmd_set,
},
@@ -1777,12 +1777,12 @@ static const struct nla_policy datapath_policy[OVS_DP_ATTR_MAX + 1] = {
static const struct genl_ops dp_datapath_genl_ops[] = {
{ .cmd = OVS_DP_CMD_NEW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = datapath_policy,
.doit = ovs_dp_cmd_new
},
{ .cmd = OVS_DP_CMD_DEL,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = datapath_policy,
.doit = ovs_dp_cmd_del
},
@@ -1793,7 +1793,7 @@ static const struct genl_ops dp_datapath_genl_ops[] = {
.dumpit = ovs_dp_cmd_dump
},
{ .cmd = OVS_DP_CMD_SET,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = datapath_policy,
.doit = ovs_dp_cmd_set,
},
@@ -2158,12 +2158,12 @@ static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
static const struct genl_ops dp_vport_genl_ops[] = {
{ .cmd = OVS_VPORT_CMD_NEW,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = vport_policy,
.doit = ovs_vport_cmd_new
},
{ .cmd = OVS_VPORT_CMD_DEL,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = vport_policy,
.doit = ovs_vport_cmd_del
},
@@ -2174,7 +2174,7 @@ static const struct genl_ops dp_vport_genl_ops[] = {
.dumpit = ovs_vport_cmd_dump
},
{ .cmd = OVS_VPORT_CMD_SET,
- .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
+ .flags = GENL_UNS_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
.policy = vport_policy,
.doit = ovs_vport_cmd_set,
},
--
2.5.0
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v3] openvswitch: allow management from inside user namespaces
[not found] ` <1454689252-18749-1-git-send-email-tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
@ 2016-02-11 9:10 ` pravin shelar
2016-02-11 14:53 ` David Miller
1 sibling, 0 replies; 6+ messages in thread
From: pravin shelar @ 2016-02-11 9:10 UTC (permalink / raw)
To: Tycho Andersen
Cc: Linux Kernel Network Developers,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Eric Biederman,
Justin Pettit, David S. Miller
On Fri, Feb 5, 2016 at 5:20 PM, Tycho Andersen
<tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> wrote:
> Operations with the GENL_ADMIN_PERM flag fail permissions checks because
> this flag means we call netlink_capable, which uses the init user ns.
>
> Instead, let's introduce a new flag, GENL_UNS_ADMIN_PERM for operations
> which should be allowed inside a user namespace.
>
> The motivation for this is to be able to run openvswitch in unprivileged
> containers. I've tested this and it seems to work, but I really have no
> idea about the security consequences of this patch, so thoughts would be
> much appreciated.
>
> v2: use the GENL_UNS_ADMIN_PERM flag instead of a check in each function
> v3: use separate ifs for UNS_ADMIN_PERM and ADMIN_PERM, instead of one
> massive one
>
> Reported-by: James Page <james.page-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
> Signed-off-by: Tycho Andersen <tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
> CC: Eric Biederman <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
> CC: Pravin Shelar <pshelar-LZ6Gd1LRuIk@public.gmane.org>
> CC: Justin Pettit <jpettit-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
> CC: "David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
> ---
> include/uapi/linux/genetlink.h | 1 +
> net/netlink/genetlink.c | 4 ++++
> net/openvswitch/datapath.c | 20 ++++++++++----------
> 3 files changed, 15 insertions(+), 10 deletions(-)
>
Looks good.
Acked-by: Pravin B Shelar <pshelar-LZ6Gd1LRuIk@public.gmane.org>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3] openvswitch: allow management from inside user namespaces
2016-02-05 16:20 ` Tycho Andersen
(?)
@ 2016-02-11 9:10 ` pravin shelar
-1 siblings, 0 replies; 6+ messages in thread
From: pravin shelar @ 2016-02-11 9:10 UTC (permalink / raw)
To: Tycho Andersen
Cc: David S. Miller, Linux Kernel Network Developers, linux-kernel,
containers, Eric Biederman, Justin Pettit
On Fri, Feb 5, 2016 at 5:20 PM, Tycho Andersen
<tycho.andersen@canonical.com> wrote:
> Operations with the GENL_ADMIN_PERM flag fail permissions checks because
> this flag means we call netlink_capable, which uses the init user ns.
>
> Instead, let's introduce a new flag, GENL_UNS_ADMIN_PERM for operations
> which should be allowed inside a user namespace.
>
> The motivation for this is to be able to run openvswitch in unprivileged
> containers. I've tested this and it seems to work, but I really have no
> idea about the security consequences of this patch, so thoughts would be
> much appreciated.
>
> v2: use the GENL_UNS_ADMIN_PERM flag instead of a check in each function
> v3: use separate ifs for UNS_ADMIN_PERM and ADMIN_PERM, instead of one
> massive one
>
> Reported-by: James Page <james.page@canonical.com>
> Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
> CC: Eric Biederman <ebiederm@xmission.com>
> CC: Pravin Shelar <pshelar@ovn.org>
> CC: Justin Pettit <jpettit@nicira.com>
> CC: "David S. Miller" <davem@davemloft.net>
> ---
> include/uapi/linux/genetlink.h | 1 +
> net/netlink/genetlink.c | 4 ++++
> net/openvswitch/datapath.c | 20 ++++++++++----------
> 3 files changed, 15 insertions(+), 10 deletions(-)
>
Looks good.
Acked-by: Pravin B Shelar <pshelar@ovn.org>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3] openvswitch: allow management from inside user namespaces
2016-02-05 16:20 ` Tycho Andersen
@ 2016-02-11 14:53 ` David Miller
-1 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2016-02-11 14:53 UTC (permalink / raw)
To: tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw
Cc: netdev-u79uwXL29TY76Z2rM5mHXA,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, pshelar-LZ6Gd1LRuIk,
ebiederm-aS9lmoZGLiVWk0Htik3J/w, jpettit-l0M0P4e3n4LQT0dZR+AlfA
From: Tycho Andersen <tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Date: Fri, 5 Feb 2016 09:20:52 -0700
> Operations with the GENL_ADMIN_PERM flag fail permissions checks because
> this flag means we call netlink_capable, which uses the init user ns.
>
> Instead, let's introduce a new flag, GENL_UNS_ADMIN_PERM for operations
> which should be allowed inside a user namespace.
>
> The motivation for this is to be able to run openvswitch in unprivileged
> containers. I've tested this and it seems to work, but I really have no
> idea about the security consequences of this patch, so thoughts would be
> much appreciated.
>
> v2: use the GENL_UNS_ADMIN_PERM flag instead of a check in each function
> v3: use separate ifs for UNS_ADMIN_PERM and ADMIN_PERM, instead of one
> massive one
>
> Reported-by: James Page <james.page-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
> Signed-off-by: Tycho Andersen <tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Applied, thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v3] openvswitch: allow management from inside user namespaces
@ 2016-02-11 14:53 ` David Miller
0 siblings, 0 replies; 6+ messages in thread
From: David Miller @ 2016-02-11 14:53 UTC (permalink / raw)
To: tycho.andersen
Cc: pshelar, netdev, linux-kernel, containers, ebiederm, jpettit
From: Tycho Andersen <tycho.andersen@canonical.com>
Date: Fri, 5 Feb 2016 09:20:52 -0700
> Operations with the GENL_ADMIN_PERM flag fail permissions checks because
> this flag means we call netlink_capable, which uses the init user ns.
>
> Instead, let's introduce a new flag, GENL_UNS_ADMIN_PERM for operations
> which should be allowed inside a user namespace.
>
> The motivation for this is to be able to run openvswitch in unprivileged
> containers. I've tested this and it seems to work, but I really have no
> idea about the security consequences of this patch, so thoughts would be
> much appreciated.
>
> v2: use the GENL_UNS_ADMIN_PERM flag instead of a check in each function
> v3: use separate ifs for UNS_ADMIN_PERM and ADMIN_PERM, instead of one
> massive one
>
> Reported-by: James Page <james.page@canonical.com>
> Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Applied, thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-02-11 14:53 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-02-05 16:20 [PATCH v3] openvswitch: allow management from inside user namespaces Tycho Andersen
2016-02-05 16:20 ` Tycho Andersen
2016-02-11 9:10 ` pravin shelar
[not found] ` <1454689252-18749-1-git-send-email-tycho.andersen-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2016-02-11 9:10 ` pravin shelar
2016-02-11 14:53 ` David Miller
2016-02-11 14:53 ` David Miller
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