* [leon-rdma:rdma-next 59/63] net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
@ 2019-11-20 12:49 ` Dan Carpenter
0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2019-11-20 12:49 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 10620 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git rdma-next
head: 7f9a863f2a4067a38cc6ad330b9425b3fd2dc67b
commit: a209fe95d542e8e566c74a8cbd2ec49452b9d110 [59/63] net/core: Add support for getting VF GUIDs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
net/core/rtnetlink.c:1281 rtnl_fill_vfinfo() warn: check that 'port_guid' doesn't leak information (struct has a hole after 'vf')
# https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/commit/?id=a209fe95d542e8e566c74a8cbd2ec49452b9d110
git remote add leon-rdma https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git
git remote update leon-rdma
git checkout a209fe95d542e8e566c74a8cbd2ec49452b9d110
vim +1279 net/core/rtnetlink.c
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1189 static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1190 struct net_device *dev,
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1191 int vfs_num,
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1192 struct nlattr *vfinfo)
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1193 {
01a3d796813d63 Vlad Zolotarov 2015-03-30 1194 struct ifla_vf_rss_query_en vf_rss_query_en;
79aab093a0b537 Moshe Shemesh 2016-09-22 1195 struct nlattr *vf, *vfstats, *vfvlanlist;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1196 struct ifla_vf_link_state vf_linkstate;
79aab093a0b537 Moshe Shemesh 2016-09-22 1197 struct ifla_vf_vlan_info vf_vlan_info;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1198 struct ifla_vf_spoofchk vf_spoofchk;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1199 struct ifla_vf_tx_rate vf_tx_rate;
3b766cd832328f Eran Ben Elisha 2015-06-15 1200 struct ifla_vf_stats vf_stats;
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1201 struct ifla_vf_trust vf_trust;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1202 struct ifla_vf_vlan vf_vlan;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1203 struct ifla_vf_rate vf_rate;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1204 struct ifla_vf_mac vf_mac;
75345f888f700c Denis Kirjanov 2019-06-17 1205 struct ifla_vf_broadcast vf_broadcast;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1206 struct ifla_vf_info ivi;
a209fe95d542e8 Danit Goldberg 2019-11-06 1207 struct ifla_vf_guid node_guid;
a209fe95d542e8 Danit Goldberg 2019-11-06 1208 struct ifla_vf_guid port_guid;
5f8444a3fa6170 Greg Rose 2011-10-08 1209
0eed9cf58446b2 Mintz, Yuval 2017-06-07 1210 memset(&ivi, 0, sizeof(ivi));
0eed9cf58446b2 Mintz, Yuval 2017-06-07 1211
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1212 /* Not all SR-IOV capable drivers support the
01a3d796813d63 Vlad Zolotarov 2015-03-30 1213 * spoofcheck and "RSS query enable" query. Preset to
01a3d796813d63 Vlad Zolotarov 2015-03-30 1214 * -1 so the user space tool can detect that the driver
01a3d796813d63 Vlad Zolotarov 2015-03-30 1215 * didn't report anything.
5f8444a3fa6170 Greg Rose 2011-10-08 1216 */
5f8444a3fa6170 Greg Rose 2011-10-08 1217 ivi.spoofchk = -1;
01a3d796813d63 Vlad Zolotarov 2015-03-30 1218 ivi.rss_query_en = -1;
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1219 ivi.trusted = -1;
1d8faf48c74b83 Rony Efraim 2013-06-13 1220 /* The default value for VF link state is "auto"
1d8faf48c74b83 Rony Efraim 2013-06-13 1221 * IFLA_VF_LINK_STATE_AUTO which equals zero
1d8faf48c74b83 Rony Efraim 2013-06-13 1222 */
1d8faf48c74b83 Rony Efraim 2013-06-13 1223 ivi.linkstate = 0;
79aab093a0b537 Moshe Shemesh 2016-09-22 1224 /* VLAN Protocol by default is 802.1Q */
79aab093a0b537 Moshe Shemesh 2016-09-22 1225 ivi.vlan_proto = htons(ETH_P_8021Q);
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1226 if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi))
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1227 return 0;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1228
775f4f05501b3e Dan Carpenter 2016-10-13 1229 memset(&vf_vlan_info, 0, sizeof(vf_vlan_info));
775f4f05501b3e Dan Carpenter 2016-10-13 1230
5f8444a3fa6170 Greg Rose 2011-10-08 1231 vf_mac.vf =
5f8444a3fa6170 Greg Rose 2011-10-08 1232 vf_vlan.vf =
79aab093a0b537 Moshe Shemesh 2016-09-22 1233 vf_vlan_info.vf =
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1234 vf_rate.vf =
5f8444a3fa6170 Greg Rose 2011-10-08 1235 vf_tx_rate.vf =
1d8faf48c74b83 Rony Efraim 2013-06-13 1236 vf_spoofchk.vf =
01a3d796813d63 Vlad Zolotarov 2015-03-30 1237 vf_linkstate.vf =
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1238 vf_rss_query_en.vf =
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1239 vf_trust.vf = ivi.vf;
5f8444a3fa6170 Greg Rose 2011-10-08 1240
c02db8c6290bb9 Chris Wright 2010-05-16 1241 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
75345f888f700c Denis Kirjanov 2019-06-17 1242 memcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);
c02db8c6290bb9 Chris Wright 2010-05-16 1243 vf_vlan.vlan = ivi.vlan;
c02db8c6290bb9 Chris Wright 2010-05-16 1244 vf_vlan.qos = ivi.qos;
79aab093a0b537 Moshe Shemesh 2016-09-22 1245 vf_vlan_info.vlan = ivi.vlan;
79aab093a0b537 Moshe Shemesh 2016-09-22 1246 vf_vlan_info.qos = ivi.qos;
79aab093a0b537 Moshe Shemesh 2016-09-22 1247 vf_vlan_info.vlan_proto = ivi.vlan_proto;
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1248 vf_tx_rate.rate = ivi.max_tx_rate;
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1249 vf_rate.min_tx_rate = ivi.min_tx_rate;
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1250 vf_rate.max_tx_rate = ivi.max_tx_rate;
5f8444a3fa6170 Greg Rose 2011-10-08 1251 vf_spoofchk.setting = ivi.spoofchk;
1d8faf48c74b83 Rony Efraim 2013-06-13 1252 vf_linkstate.link_state = ivi.linkstate;
01a3d796813d63 Vlad Zolotarov 2015-03-30 1253 vf_rss_query_en.setting = ivi.rss_query_en;
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1254 vf_trust.setting = ivi.trusted;
ae0be8de9a53cd Michal Kubecek 2019-04-26 1255 vf = nla_nest_start_noflag(skb, IFLA_VF_INFO);
79aab093a0b537 Moshe Shemesh 2016-09-22 1256 if (!vf)
79aab093a0b537 Moshe Shemesh 2016-09-22 1257 goto nla_put_vfinfo_failure;
a6574349d068cb David S. Miller 2012-04-01 1258 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
75345f888f700c Denis Kirjanov 2019-06-17 1259 nla_put(skb, IFLA_VF_BROADCAST, sizeof(vf_broadcast), &vf_broadcast) ||
a6574349d068cb David S. Miller 2012-04-01 1260 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1261 nla_put(skb, IFLA_VF_RATE, sizeof(vf_rate),
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1262 &vf_rate) ||
a6574349d068cb David S. Miller 2012-04-01 1263 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
a6574349d068cb David S. Miller 2012-04-01 1264 &vf_tx_rate) ||
a6574349d068cb David S. Miller 2012-04-01 1265 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
1d8faf48c74b83 Rony Efraim 2013-06-13 1266 &vf_spoofchk) ||
1d8faf48c74b83 Rony Efraim 2013-06-13 1267 nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
01a3d796813d63 Vlad Zolotarov 2015-03-30 1268 &vf_linkstate) ||
01a3d796813d63 Vlad Zolotarov 2015-03-30 1269 nla_put(skb, IFLA_VF_RSS_QUERY_EN,
01a3d796813d63 Vlad Zolotarov 2015-03-30 1270 sizeof(vf_rss_query_en),
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1271 &vf_rss_query_en) ||
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1272 nla_put(skb, IFLA_VF_TRUST,
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1273 sizeof(vf_trust), &vf_trust))
79aab093a0b537 Moshe Shemesh 2016-09-22 1274 goto nla_put_vf_failure;
a209fe95d542e8 Danit Goldberg 2019-11-06 1275 if (dev->netdev_ops->ndo_get_vf_guid &&
a209fe95d542e8 Danit Goldberg 2019-11-06 1276 !dev->netdev_ops->ndo_get_vf_guid(dev, vfs_num, &node_guid,
a209fe95d542e8 Danit Goldberg 2019-11-06 1277 &port_guid)) {
a209fe95d542e8 Danit Goldberg 2019-11-06 1278 if (nla_put(skb, IFLA_VF_IB_NODE_GUID, sizeof(node_guid),
a209fe95d542e8 Danit Goldberg 2019-11-06 @1279 &node_guid) ||
a209fe95d542e8 Danit Goldberg 2019-11-06 1280 nla_put(skb, IFLA_VF_IB_PORT_GUID, sizeof(port_guid),
a209fe95d542e8 Danit Goldberg 2019-11-06 @1281 &port_guid))
These definitely seem like real bugs. We need to
memset(&node_guid, 0, sizeof(node_guid));
memset(&port_guid, 0, sizeof(port_guid));
Using an initializer = {} is not sufficient to clear struct holes. I
hope that we don't need to memzero_explicit() these like the very
paranoid folks say. :(
a209fe95d542e8 Danit Goldberg 2019-11-06 1282 goto nla_put_vf_failure;
a209fe95d542e8 Danit Goldberg 2019-11-06 1283 }
ae0be8de9a53cd Michal Kubecek 2019-04-26 1284 vfvlanlist = nla_nest_start_noflag(skb, IFLA_VF_VLAN_LIST);
79aab093a0b537 Moshe Shemesh 2016-09-22 1285 if (!vfvlanlist)
79aab093a0b537 Moshe Shemesh 2016-09-22 1286 goto nla_put_vf_failure;
79aab093a0b537 Moshe Shemesh 2016-09-22 1287 if (nla_put(skb, IFLA_VF_VLAN_INFO, sizeof(vf_vlan_info),
79aab093a0b537 Moshe Shemesh 2016-09-22 1288 &vf_vlan_info)) {
79aab093a0b537 Moshe Shemesh 2016-09-22 1289 nla_nest_cancel(skb, vfvlanlist);
79aab093a0b537 Moshe Shemesh 2016-09-22 1290 goto nla_put_vf_failure;
79aab093a0b537 Moshe Shemesh 2016-09-22 1291 }
79aab093a0b537 Moshe Shemesh 2016-09-22 1292 nla_nest_end(skb, vfvlanlist);
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
^ permalink raw reply [flat|nested] 5+ messages in thread* [leon-rdma:rdma-next 59/63] net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
@ 2019-11-20 12:49 ` Dan Carpenter
0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2019-11-20 12:49 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 10620 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git rdma-next
head: 7f9a863f2a4067a38cc6ad330b9425b3fd2dc67b
commit: a209fe95d542e8e566c74a8cbd2ec49452b9d110 [59/63] net/core: Add support for getting VF GUIDs
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
net/core/rtnetlink.c:1281 rtnl_fill_vfinfo() warn: check that 'port_guid' doesn't leak information (struct has a hole after 'vf')
# https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/commit/?id=a209fe95d542e8e566c74a8cbd2ec49452b9d110
git remote add leon-rdma https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git
git remote update leon-rdma
git checkout a209fe95d542e8e566c74a8cbd2ec49452b9d110
vim +1279 net/core/rtnetlink.c
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1189 static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1190 struct net_device *dev,
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1191 int vfs_num,
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1192 struct nlattr *vfinfo)
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1193 {
01a3d796813d63 Vlad Zolotarov 2015-03-30 1194 struct ifla_vf_rss_query_en vf_rss_query_en;
79aab093a0b537 Moshe Shemesh 2016-09-22 1195 struct nlattr *vf, *vfstats, *vfvlanlist;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1196 struct ifla_vf_link_state vf_linkstate;
79aab093a0b537 Moshe Shemesh 2016-09-22 1197 struct ifla_vf_vlan_info vf_vlan_info;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1198 struct ifla_vf_spoofchk vf_spoofchk;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1199 struct ifla_vf_tx_rate vf_tx_rate;
3b766cd832328f Eran Ben Elisha 2015-06-15 1200 struct ifla_vf_stats vf_stats;
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1201 struct ifla_vf_trust vf_trust;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1202 struct ifla_vf_vlan vf_vlan;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1203 struct ifla_vf_rate vf_rate;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1204 struct ifla_vf_mac vf_mac;
75345f888f700c Denis Kirjanov 2019-06-17 1205 struct ifla_vf_broadcast vf_broadcast;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1206 struct ifla_vf_info ivi;
a209fe95d542e8 Danit Goldberg 2019-11-06 1207 struct ifla_vf_guid node_guid;
a209fe95d542e8 Danit Goldberg 2019-11-06 1208 struct ifla_vf_guid port_guid;
5f8444a3fa6170 Greg Rose 2011-10-08 1209
0eed9cf58446b2 Mintz, Yuval 2017-06-07 1210 memset(&ivi, 0, sizeof(ivi));
0eed9cf58446b2 Mintz, Yuval 2017-06-07 1211
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1212 /* Not all SR-IOV capable drivers support the
01a3d796813d63 Vlad Zolotarov 2015-03-30 1213 * spoofcheck and "RSS query enable" query. Preset to
01a3d796813d63 Vlad Zolotarov 2015-03-30 1214 * -1 so the user space tool can detect that the driver
01a3d796813d63 Vlad Zolotarov 2015-03-30 1215 * didn't report anything.
5f8444a3fa6170 Greg Rose 2011-10-08 1216 */
5f8444a3fa6170 Greg Rose 2011-10-08 1217 ivi.spoofchk = -1;
01a3d796813d63 Vlad Zolotarov 2015-03-30 1218 ivi.rss_query_en = -1;
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1219 ivi.trusted = -1;
1d8faf48c74b83 Rony Efraim 2013-06-13 1220 /* The default value for VF link state is "auto"
1d8faf48c74b83 Rony Efraim 2013-06-13 1221 * IFLA_VF_LINK_STATE_AUTO which equals zero
1d8faf48c74b83 Rony Efraim 2013-06-13 1222 */
1d8faf48c74b83 Rony Efraim 2013-06-13 1223 ivi.linkstate = 0;
79aab093a0b537 Moshe Shemesh 2016-09-22 1224 /* VLAN Protocol by default is 802.1Q */
79aab093a0b537 Moshe Shemesh 2016-09-22 1225 ivi.vlan_proto = htons(ETH_P_8021Q);
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1226 if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi))
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1227 return 0;
b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1228
775f4f05501b3e Dan Carpenter 2016-10-13 1229 memset(&vf_vlan_info, 0, sizeof(vf_vlan_info));
775f4f05501b3e Dan Carpenter 2016-10-13 1230
5f8444a3fa6170 Greg Rose 2011-10-08 1231 vf_mac.vf =
5f8444a3fa6170 Greg Rose 2011-10-08 1232 vf_vlan.vf =
79aab093a0b537 Moshe Shemesh 2016-09-22 1233 vf_vlan_info.vf =
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1234 vf_rate.vf =
5f8444a3fa6170 Greg Rose 2011-10-08 1235 vf_tx_rate.vf =
1d8faf48c74b83 Rony Efraim 2013-06-13 1236 vf_spoofchk.vf =
01a3d796813d63 Vlad Zolotarov 2015-03-30 1237 vf_linkstate.vf =
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1238 vf_rss_query_en.vf =
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1239 vf_trust.vf = ivi.vf;
5f8444a3fa6170 Greg Rose 2011-10-08 1240
c02db8c6290bb9 Chris Wright 2010-05-16 1241 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
75345f888f700c Denis Kirjanov 2019-06-17 1242 memcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);
c02db8c6290bb9 Chris Wright 2010-05-16 1243 vf_vlan.vlan = ivi.vlan;
c02db8c6290bb9 Chris Wright 2010-05-16 1244 vf_vlan.qos = ivi.qos;
79aab093a0b537 Moshe Shemesh 2016-09-22 1245 vf_vlan_info.vlan = ivi.vlan;
79aab093a0b537 Moshe Shemesh 2016-09-22 1246 vf_vlan_info.qos = ivi.qos;
79aab093a0b537 Moshe Shemesh 2016-09-22 1247 vf_vlan_info.vlan_proto = ivi.vlan_proto;
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1248 vf_tx_rate.rate = ivi.max_tx_rate;
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1249 vf_rate.min_tx_rate = ivi.min_tx_rate;
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1250 vf_rate.max_tx_rate = ivi.max_tx_rate;
5f8444a3fa6170 Greg Rose 2011-10-08 1251 vf_spoofchk.setting = ivi.spoofchk;
1d8faf48c74b83 Rony Efraim 2013-06-13 1252 vf_linkstate.link_state = ivi.linkstate;
01a3d796813d63 Vlad Zolotarov 2015-03-30 1253 vf_rss_query_en.setting = ivi.rss_query_en;
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1254 vf_trust.setting = ivi.trusted;
ae0be8de9a53cd Michal Kubecek 2019-04-26 1255 vf = nla_nest_start_noflag(skb, IFLA_VF_INFO);
79aab093a0b537 Moshe Shemesh 2016-09-22 1256 if (!vf)
79aab093a0b537 Moshe Shemesh 2016-09-22 1257 goto nla_put_vfinfo_failure;
a6574349d068cb David S. Miller 2012-04-01 1258 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
75345f888f700c Denis Kirjanov 2019-06-17 1259 nla_put(skb, IFLA_VF_BROADCAST, sizeof(vf_broadcast), &vf_broadcast) ||
a6574349d068cb David S. Miller 2012-04-01 1260 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1261 nla_put(skb, IFLA_VF_RATE, sizeof(vf_rate),
ed616689a3d95e Sucheta Chakraborty 2014-05-22 1262 &vf_rate) ||
a6574349d068cb David S. Miller 2012-04-01 1263 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
a6574349d068cb David S. Miller 2012-04-01 1264 &vf_tx_rate) ||
a6574349d068cb David S. Miller 2012-04-01 1265 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
1d8faf48c74b83 Rony Efraim 2013-06-13 1266 &vf_spoofchk) ||
1d8faf48c74b83 Rony Efraim 2013-06-13 1267 nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
01a3d796813d63 Vlad Zolotarov 2015-03-30 1268 &vf_linkstate) ||
01a3d796813d63 Vlad Zolotarov 2015-03-30 1269 nla_put(skb, IFLA_VF_RSS_QUERY_EN,
01a3d796813d63 Vlad Zolotarov 2015-03-30 1270 sizeof(vf_rss_query_en),
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1271 &vf_rss_query_en) ||
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1272 nla_put(skb, IFLA_VF_TRUST,
dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1273 sizeof(vf_trust), &vf_trust))
79aab093a0b537 Moshe Shemesh 2016-09-22 1274 goto nla_put_vf_failure;
a209fe95d542e8 Danit Goldberg 2019-11-06 1275 if (dev->netdev_ops->ndo_get_vf_guid &&
a209fe95d542e8 Danit Goldberg 2019-11-06 1276 !dev->netdev_ops->ndo_get_vf_guid(dev, vfs_num, &node_guid,
a209fe95d542e8 Danit Goldberg 2019-11-06 1277 &port_guid)) {
a209fe95d542e8 Danit Goldberg 2019-11-06 1278 if (nla_put(skb, IFLA_VF_IB_NODE_GUID, sizeof(node_guid),
a209fe95d542e8 Danit Goldberg 2019-11-06 @1279 &node_guid) ||
a209fe95d542e8 Danit Goldberg 2019-11-06 1280 nla_put(skb, IFLA_VF_IB_PORT_GUID, sizeof(port_guid),
a209fe95d542e8 Danit Goldberg 2019-11-06 @1281 &port_guid))
These definitely seem like real bugs. We need to
memset(&node_guid, 0, sizeof(node_guid));
memset(&port_guid, 0, sizeof(port_guid));
Using an initializer = {} is not sufficient to clear struct holes. I
hope that we don't need to memzero_explicit() these like the very
paranoid folks say. :(
a209fe95d542e8 Danit Goldberg 2019-11-06 1282 goto nla_put_vf_failure;
a209fe95d542e8 Danit Goldberg 2019-11-06 1283 }
ae0be8de9a53cd Michal Kubecek 2019-04-26 1284 vfvlanlist = nla_nest_start_noflag(skb, IFLA_VF_VLAN_LIST);
79aab093a0b537 Moshe Shemesh 2016-09-22 1285 if (!vfvlanlist)
79aab093a0b537 Moshe Shemesh 2016-09-22 1286 goto nla_put_vf_failure;
79aab093a0b537 Moshe Shemesh 2016-09-22 1287 if (nla_put(skb, IFLA_VF_VLAN_INFO, sizeof(vf_vlan_info),
79aab093a0b537 Moshe Shemesh 2016-09-22 1288 &vf_vlan_info)) {
79aab093a0b537 Moshe Shemesh 2016-09-22 1289 nla_nest_cancel(skb, vfvlanlist);
79aab093a0b537 Moshe Shemesh 2016-09-22 1290 goto nla_put_vf_failure;
79aab093a0b537 Moshe Shemesh 2016-09-22 1291 }
79aab093a0b537 Moshe Shemesh 2016-09-22 1292 nla_nest_end(skb, vfvlanlist);
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [leon-rdma:rdma-next 59/63] net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
2019-11-20 12:49 ` Dan Carpenter
(?)
@ 2019-11-20 13:45 ` Leon Romanovsky
2019-11-20 18:05 ` Dan Carpenter
-1 siblings, 1 reply; 5+ messages in thread
From: Leon Romanovsky @ 2019-11-20 13:45 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 11120 bytes --]
On Wed, Nov 20, 2019 at 03:49:00PM +0300, Dan Carpenter wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git rdma-next
> head: 7f9a863f2a4067a38cc6ad330b9425b3fd2dc67b
> commit: a209fe95d542e8e566c74a8cbd2ec49452b9d110 [59/63] net/core: Add support for getting VF GUIDs
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> smatch warnings:
> net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
> net/core/rtnetlink.c:1281 rtnl_fill_vfinfo() warn: check that 'port_guid' doesn't leak information (struct has a hole after 'vf')
>
> # https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/commit/?id=a209fe95d542e8e566c74a8cbd2ec49452b9d110
> git remote add leon-rdma https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git
> git remote update leon-rdma
> git checkout a209fe95d542e8e566c74a8cbd2ec49452b9d110
> vim +1279 net/core/rtnetlink.c
>
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1189 static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1190 struct net_device *dev,
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1191 int vfs_num,
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1192 struct nlattr *vfinfo)
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1193 {
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1194 struct ifla_vf_rss_query_en vf_rss_query_en;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1195 struct nlattr *vf, *vfstats, *vfvlanlist;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1196 struct ifla_vf_link_state vf_linkstate;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1197 struct ifla_vf_vlan_info vf_vlan_info;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1198 struct ifla_vf_spoofchk vf_spoofchk;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1199 struct ifla_vf_tx_rate vf_tx_rate;
> 3b766cd832328f Eran Ben Elisha 2015-06-15 1200 struct ifla_vf_stats vf_stats;
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1201 struct ifla_vf_trust vf_trust;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1202 struct ifla_vf_vlan vf_vlan;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1203 struct ifla_vf_rate vf_rate;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1204 struct ifla_vf_mac vf_mac;
> 75345f888f700c Denis Kirjanov 2019-06-17 1205 struct ifla_vf_broadcast vf_broadcast;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1206 struct ifla_vf_info ivi;
> a209fe95d542e8 Danit Goldberg 2019-11-06 1207 struct ifla_vf_guid node_guid;
> a209fe95d542e8 Danit Goldberg 2019-11-06 1208 struct ifla_vf_guid port_guid;
> 5f8444a3fa6170 Greg Rose 2011-10-08 1209
> 0eed9cf58446b2 Mintz, Yuval 2017-06-07 1210 memset(&ivi, 0, sizeof(ivi));
> 0eed9cf58446b2 Mintz, Yuval 2017-06-07 1211
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1212 /* Not all SR-IOV capable drivers support the
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1213 * spoofcheck and "RSS query enable" query. Preset to
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1214 * -1 so the user space tool can detect that the driver
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1215 * didn't report anything.
> 5f8444a3fa6170 Greg Rose 2011-10-08 1216 */
> 5f8444a3fa6170 Greg Rose 2011-10-08 1217 ivi.spoofchk = -1;
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1218 ivi.rss_query_en = -1;
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1219 ivi.trusted = -1;
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1220 /* The default value for VF link state is "auto"
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1221 * IFLA_VF_LINK_STATE_AUTO which equals zero
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1222 */
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1223 ivi.linkstate = 0;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1224 /* VLAN Protocol by default is 802.1Q */
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1225 ivi.vlan_proto = htons(ETH_P_8021Q);
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1226 if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi))
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1227 return 0;
> b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1228
> 775f4f05501b3e Dan Carpenter 2016-10-13 1229 memset(&vf_vlan_info, 0, sizeof(vf_vlan_info));
> 775f4f05501b3e Dan Carpenter 2016-10-13 1230
> 5f8444a3fa6170 Greg Rose 2011-10-08 1231 vf_mac.vf =
> 5f8444a3fa6170 Greg Rose 2011-10-08 1232 vf_vlan.vf =
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1233 vf_vlan_info.vf =
> ed616689a3d95e Sucheta Chakraborty 2014-05-22 1234 vf_rate.vf =
> 5f8444a3fa6170 Greg Rose 2011-10-08 1235 vf_tx_rate.vf =
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1236 vf_spoofchk.vf =
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1237 vf_linkstate.vf =
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1238 vf_rss_query_en.vf =
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1239 vf_trust.vf = ivi.vf;
> 5f8444a3fa6170 Greg Rose 2011-10-08 1240
> c02db8c6290bb9 Chris Wright 2010-05-16 1241 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
> 75345f888f700c Denis Kirjanov 2019-06-17 1242 memcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);
> c02db8c6290bb9 Chris Wright 2010-05-16 1243 vf_vlan.vlan = ivi.vlan;
> c02db8c6290bb9 Chris Wright 2010-05-16 1244 vf_vlan.qos = ivi.qos;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1245 vf_vlan_info.vlan = ivi.vlan;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1246 vf_vlan_info.qos = ivi.qos;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1247 vf_vlan_info.vlan_proto = ivi.vlan_proto;
> ed616689a3d95e Sucheta Chakraborty 2014-05-22 1248 vf_tx_rate.rate = ivi.max_tx_rate;
> ed616689a3d95e Sucheta Chakraborty 2014-05-22 1249 vf_rate.min_tx_rate = ivi.min_tx_rate;
> ed616689a3d95e Sucheta Chakraborty 2014-05-22 1250 vf_rate.max_tx_rate = ivi.max_tx_rate;
> 5f8444a3fa6170 Greg Rose 2011-10-08 1251 vf_spoofchk.setting = ivi.spoofchk;
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1252 vf_linkstate.link_state = ivi.linkstate;
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1253 vf_rss_query_en.setting = ivi.rss_query_en;
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1254 vf_trust.setting = ivi.trusted;
> ae0be8de9a53cd Michal Kubecek 2019-04-26 1255 vf = nla_nest_start_noflag(skb, IFLA_VF_INFO);
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1256 if (!vf)
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1257 goto nla_put_vfinfo_failure;
> a6574349d068cb David S. Miller 2012-04-01 1258 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
> 75345f888f700c Denis Kirjanov 2019-06-17 1259 nla_put(skb, IFLA_VF_BROADCAST, sizeof(vf_broadcast), &vf_broadcast) ||
> a6574349d068cb David S. Miller 2012-04-01 1260 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
> ed616689a3d95e Sucheta Chakraborty 2014-05-22 1261 nla_put(skb, IFLA_VF_RATE, sizeof(vf_rate),
> ed616689a3d95e Sucheta Chakraborty 2014-05-22 1262 &vf_rate) ||
> a6574349d068cb David S. Miller 2012-04-01 1263 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
> a6574349d068cb David S. Miller 2012-04-01 1264 &vf_tx_rate) ||
> a6574349d068cb David S. Miller 2012-04-01 1265 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1266 &vf_spoofchk) ||
> 1d8faf48c74b83 Rony Efraim 2013-06-13 1267 nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1268 &vf_linkstate) ||
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1269 nla_put(skb, IFLA_VF_RSS_QUERY_EN,
> 01a3d796813d63 Vlad Zolotarov 2015-03-30 1270 sizeof(vf_rss_query_en),
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1271 &vf_rss_query_en) ||
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1272 nla_put(skb, IFLA_VF_TRUST,
> dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1273 sizeof(vf_trust), &vf_trust))
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1274 goto nla_put_vf_failure;
> a209fe95d542e8 Danit Goldberg 2019-11-06 1275 if (dev->netdev_ops->ndo_get_vf_guid &&
> a209fe95d542e8 Danit Goldberg 2019-11-06 1276 !dev->netdev_ops->ndo_get_vf_guid(dev, vfs_num, &node_guid,
> a209fe95d542e8 Danit Goldberg 2019-11-06 1277 &port_guid)) {
> a209fe95d542e8 Danit Goldberg 2019-11-06 1278 if (nla_put(skb, IFLA_VF_IB_NODE_GUID, sizeof(node_guid),
> a209fe95d542e8 Danit Goldberg 2019-11-06 @1279 &node_guid) ||
> a209fe95d542e8 Danit Goldberg 2019-11-06 1280 nla_put(skb, IFLA_VF_IB_PORT_GUID, sizeof(port_guid),
> a209fe95d542e8 Danit Goldberg 2019-11-06 @1281 &port_guid))
>
> These definitely seem like real bugs. We need to
>
> memset(&node_guid, 0, sizeof(node_guid));
> memset(&port_guid, 0, sizeof(port_guid));
>
> Using an initializer = {} is not sufficient to clear struct holes. I
> hope that we don't need to memzero_explicit() these like the very
> paranoid folks say. :(
Dan,
How is it possible to leak? We are putting node_guid and port_guid after
successful return of ndo_get_vf_guid(). It will ensure that GUIDs are
initialized.
Thanks
>
> a209fe95d542e8 Danit Goldberg 2019-11-06 1282 goto nla_put_vf_failure;
> a209fe95d542e8 Danit Goldberg 2019-11-06 1283 }
> ae0be8de9a53cd Michal Kubecek 2019-04-26 1284 vfvlanlist = nla_nest_start_noflag(skb, IFLA_VF_VLAN_LIST);
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1285 if (!vfvlanlist)
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1286 goto nla_put_vf_failure;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1287 if (nla_put(skb, IFLA_VF_VLAN_INFO, sizeof(vf_vlan_info),
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1288 &vf_vlan_info)) {
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1289 nla_nest_cancel(skb, vfvlanlist);
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1290 goto nla_put_vf_failure;
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1291 }
> 79aab093a0b537 Moshe Shemesh 2016-09-22 1292 nla_nest_end(skb, vfvlanlist);
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [leon-rdma:rdma-next 59/63] net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
2019-11-20 13:45 ` Leon Romanovsky
@ 2019-11-20 18:05 ` Dan Carpenter
0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2019-11-20 18:05 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 10581 bytes --]
On Wed, Nov 20, 2019 at 03:45:16PM +0200, Leon Romanovsky wrote:
> On Wed, Nov 20, 2019 at 03:49:00PM +0300, Dan Carpenter wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git rdma-next
> > head: 7f9a863f2a4067a38cc6ad330b9425b3fd2dc67b
> > commit: a209fe95d542e8e566c74a8cbd2ec49452b9d110 [59/63] net/core: Add support for getting VF GUIDs
> >
> > If you fix the issue, kindly add following tag
> > Reported-by: kbuild test robot <lkp@intel.com>
> > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > smatch warnings:
> > net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
> > net/core/rtnetlink.c:1281 rtnl_fill_vfinfo() warn: check that 'port_guid' doesn't leak information (struct has a hole after 'vf')
> >
> > # https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/commit/?id=a209fe95d542e8e566c74a8cbd2ec49452b9d110
> > git remote add leon-rdma https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git
> > git remote update leon-rdma
> > git checkout a209fe95d542e8e566c74a8cbd2ec49452b9d110
> > vim +1279 net/core/rtnetlink.c
> >
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1189 static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1190 struct net_device *dev,
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1191 int vfs_num,
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1192 struct nlattr *vfinfo)
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1193 {
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1194 struct ifla_vf_rss_query_en vf_rss_query_en;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1195 struct nlattr *vf, *vfstats, *vfvlanlist;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1196 struct ifla_vf_link_state vf_linkstate;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1197 struct ifla_vf_vlan_info vf_vlan_info;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1198 struct ifla_vf_spoofchk vf_spoofchk;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1199 struct ifla_vf_tx_rate vf_tx_rate;
> > 3b766cd832328f Eran Ben Elisha 2015-06-15 1200 struct ifla_vf_stats vf_stats;
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1201 struct ifla_vf_trust vf_trust;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1202 struct ifla_vf_vlan vf_vlan;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1203 struct ifla_vf_rate vf_rate;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1204 struct ifla_vf_mac vf_mac;
> > 75345f888f700c Denis Kirjanov 2019-06-17 1205 struct ifla_vf_broadcast vf_broadcast;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1206 struct ifla_vf_info ivi;
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1207 struct ifla_vf_guid node_guid;
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1208 struct ifla_vf_guid port_guid;
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1209
> > 0eed9cf58446b2 Mintz, Yuval 2017-06-07 1210 memset(&ivi, 0, sizeof(ivi));
> > 0eed9cf58446b2 Mintz, Yuval 2017-06-07 1211
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1212 /* Not all SR-IOV capable drivers support the
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1213 * spoofcheck and "RSS query enable" query. Preset to
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1214 * -1 so the user space tool can detect that the driver
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1215 * didn't report anything.
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1216 */
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1217 ivi.spoofchk = -1;
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1218 ivi.rss_query_en = -1;
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1219 ivi.trusted = -1;
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1220 /* The default value for VF link state is "auto"
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1221 * IFLA_VF_LINK_STATE_AUTO which equals zero
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1222 */
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1223 ivi.linkstate = 0;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1224 /* VLAN Protocol by default is 802.1Q */
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1225 ivi.vlan_proto = htons(ETH_P_8021Q);
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1226 if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi))
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1227 return 0;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1228
> > 775f4f05501b3e Dan Carpenter 2016-10-13 1229 memset(&vf_vlan_info, 0, sizeof(vf_vlan_info));
> > 775f4f05501b3e Dan Carpenter 2016-10-13 1230
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1231 vf_mac.vf =
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1232 vf_vlan.vf =
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1233 vf_vlan_info.vf =
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1234 vf_rate.vf =
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1235 vf_tx_rate.vf =
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1236 vf_spoofchk.vf =
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1237 vf_linkstate.vf =
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1238 vf_rss_query_en.vf =
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1239 vf_trust.vf = ivi.vf;
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1240
> > c02db8c6290bb9 Chris Wright 2010-05-16 1241 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
> > 75345f888f700c Denis Kirjanov 2019-06-17 1242 memcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);
> > c02db8c6290bb9 Chris Wright 2010-05-16 1243 vf_vlan.vlan = ivi.vlan;
> > c02db8c6290bb9 Chris Wright 2010-05-16 1244 vf_vlan.qos = ivi.qos;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1245 vf_vlan_info.vlan = ivi.vlan;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1246 vf_vlan_info.qos = ivi.qos;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1247 vf_vlan_info.vlan_proto = ivi.vlan_proto;
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1248 vf_tx_rate.rate = ivi.max_tx_rate;
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1249 vf_rate.min_tx_rate = ivi.min_tx_rate;
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1250 vf_rate.max_tx_rate = ivi.max_tx_rate;
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1251 vf_spoofchk.setting = ivi.spoofchk;
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1252 vf_linkstate.link_state = ivi.linkstate;
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1253 vf_rss_query_en.setting = ivi.rss_query_en;
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1254 vf_trust.setting = ivi.trusted;
> > ae0be8de9a53cd Michal Kubecek 2019-04-26 1255 vf = nla_nest_start_noflag(skb, IFLA_VF_INFO);
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1256 if (!vf)
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1257 goto nla_put_vfinfo_failure;
> > a6574349d068cb David S. Miller 2012-04-01 1258 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
> > 75345f888f700c Denis Kirjanov 2019-06-17 1259 nla_put(skb, IFLA_VF_BROADCAST, sizeof(vf_broadcast), &vf_broadcast) ||
> > a6574349d068cb David S. Miller 2012-04-01 1260 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1261 nla_put(skb, IFLA_VF_RATE, sizeof(vf_rate),
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1262 &vf_rate) ||
> > a6574349d068cb David S. Miller 2012-04-01 1263 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
> > a6574349d068cb David S. Miller 2012-04-01 1264 &vf_tx_rate) ||
> > a6574349d068cb David S. Miller 2012-04-01 1265 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1266 &vf_spoofchk) ||
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1267 nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1268 &vf_linkstate) ||
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1269 nla_put(skb, IFLA_VF_RSS_QUERY_EN,
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1270 sizeof(vf_rss_query_en),
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1271 &vf_rss_query_en) ||
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1272 nla_put(skb, IFLA_VF_TRUST,
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1273 sizeof(vf_trust), &vf_trust))
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1274 goto nla_put_vf_failure;
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1275 if (dev->netdev_ops->ndo_get_vf_guid &&
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1276 !dev->netdev_ops->ndo_get_vf_guid(dev, vfs_num, &node_guid,
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1277 &port_guid)) {
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1278 if (nla_put(skb, IFLA_VF_IB_NODE_GUID, sizeof(node_guid),
> > a209fe95d542e8 Danit Goldberg 2019-11-06 @1279 &node_guid) ||
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1280 nla_put(skb, IFLA_VF_IB_PORT_GUID, sizeof(port_guid),
> > a209fe95d542e8 Danit Goldberg 2019-11-06 @1281 &port_guid))
> >
> > These definitely seem like real bugs. We need to
> >
> > memset(&node_guid, 0, sizeof(node_guid));
> > memset(&port_guid, 0, sizeof(port_guid));
> >
> > Using an initializer = {} is not sufficient to clear struct holes. I
> > hope that we don't need to memzero_explicit() these like the very
> > paranoid folks say. :(
>
>
> Dan,
>
> How is it possible to leak? We are putting node_guid and port_guid after
> successful return of ndo_get_vf_guid(). It will ensure that GUIDs are
> initialized.
There is a 4 byte struct hole after node_guid.vf.
-> ipoib_get_vf_guid()
-> ib_get_vf_guid()
-> mlx5_ib_get_vf_guid()
mlx5_ib_get_vf_guid() doesn't have a memset(), plus relying on drivers
to clear the struct hole is unsafe.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [leon-rdma:rdma-next 59/63] net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
@ 2019-11-20 18:05 ` Dan Carpenter
0 siblings, 0 replies; 5+ messages in thread
From: Dan Carpenter @ 2019-11-20 18:05 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 10581 bytes --]
On Wed, Nov 20, 2019 at 03:45:16PM +0200, Leon Romanovsky wrote:
> On Wed, Nov 20, 2019 at 03:49:00PM +0300, Dan Carpenter wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git rdma-next
> > head: 7f9a863f2a4067a38cc6ad330b9425b3fd2dc67b
> > commit: a209fe95d542e8e566c74a8cbd2ec49452b9d110 [59/63] net/core: Add support for getting VF GUIDs
> >
> > If you fix the issue, kindly add following tag
> > Reported-by: kbuild test robot <lkp@intel.com>
> > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > smatch warnings:
> > net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf')
> > net/core/rtnetlink.c:1281 rtnl_fill_vfinfo() warn: check that 'port_guid' doesn't leak information (struct has a hole after 'vf')
> >
> > # https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git/commit/?id=a209fe95d542e8e566c74a8cbd2ec49452b9d110
> > git remote add leon-rdma https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git
> > git remote update leon-rdma
> > git checkout a209fe95d542e8e566c74a8cbd2ec49452b9d110
> > vim +1279 net/core/rtnetlink.c
> >
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1189 static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1190 struct net_device *dev,
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1191 int vfs_num,
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1192 struct nlattr *vfinfo)
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1193 {
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1194 struct ifla_vf_rss_query_en vf_rss_query_en;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1195 struct nlattr *vf, *vfstats, *vfvlanlist;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1196 struct ifla_vf_link_state vf_linkstate;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1197 struct ifla_vf_vlan_info vf_vlan_info;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1198 struct ifla_vf_spoofchk vf_spoofchk;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1199 struct ifla_vf_tx_rate vf_tx_rate;
> > 3b766cd832328f Eran Ben Elisha 2015-06-15 1200 struct ifla_vf_stats vf_stats;
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1201 struct ifla_vf_trust vf_trust;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1202 struct ifla_vf_vlan vf_vlan;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1203 struct ifla_vf_rate vf_rate;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1204 struct ifla_vf_mac vf_mac;
> > 75345f888f700c Denis Kirjanov 2019-06-17 1205 struct ifla_vf_broadcast vf_broadcast;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1206 struct ifla_vf_info ivi;
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1207 struct ifla_vf_guid node_guid;
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1208 struct ifla_vf_guid port_guid;
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1209
> > 0eed9cf58446b2 Mintz, Yuval 2017-06-07 1210 memset(&ivi, 0, sizeof(ivi));
> > 0eed9cf58446b2 Mintz, Yuval 2017-06-07 1211
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1212 /* Not all SR-IOV capable drivers support the
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1213 * spoofcheck and "RSS query enable" query. Preset to
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1214 * -1 so the user space tool can detect that the driver
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1215 * didn't report anything.
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1216 */
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1217 ivi.spoofchk = -1;
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1218 ivi.rss_query_en = -1;
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1219 ivi.trusted = -1;
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1220 /* The default value for VF link state is "auto"
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1221 * IFLA_VF_LINK_STATE_AUTO which equals zero
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1222 */
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1223 ivi.linkstate = 0;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1224 /* VLAN Protocol by default is 802.1Q */
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1225 ivi.vlan_proto = htons(ETH_P_8021Q);
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1226 if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi))
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1227 return 0;
> > b22b941b2c253a Hannes Frederic Sowa 2015-11-17 1228
> > 775f4f05501b3e Dan Carpenter 2016-10-13 1229 memset(&vf_vlan_info, 0, sizeof(vf_vlan_info));
> > 775f4f05501b3e Dan Carpenter 2016-10-13 1230
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1231 vf_mac.vf =
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1232 vf_vlan.vf =
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1233 vf_vlan_info.vf =
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1234 vf_rate.vf =
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1235 vf_tx_rate.vf =
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1236 vf_spoofchk.vf =
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1237 vf_linkstate.vf =
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1238 vf_rss_query_en.vf =
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1239 vf_trust.vf = ivi.vf;
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1240
> > c02db8c6290bb9 Chris Wright 2010-05-16 1241 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
> > 75345f888f700c Denis Kirjanov 2019-06-17 1242 memcpy(vf_broadcast.broadcast, dev->broadcast, dev->addr_len);
> > c02db8c6290bb9 Chris Wright 2010-05-16 1243 vf_vlan.vlan = ivi.vlan;
> > c02db8c6290bb9 Chris Wright 2010-05-16 1244 vf_vlan.qos = ivi.qos;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1245 vf_vlan_info.vlan = ivi.vlan;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1246 vf_vlan_info.qos = ivi.qos;
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1247 vf_vlan_info.vlan_proto = ivi.vlan_proto;
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1248 vf_tx_rate.rate = ivi.max_tx_rate;
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1249 vf_rate.min_tx_rate = ivi.min_tx_rate;
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1250 vf_rate.max_tx_rate = ivi.max_tx_rate;
> > 5f8444a3fa6170 Greg Rose 2011-10-08 1251 vf_spoofchk.setting = ivi.spoofchk;
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1252 vf_linkstate.link_state = ivi.linkstate;
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1253 vf_rss_query_en.setting = ivi.rss_query_en;
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1254 vf_trust.setting = ivi.trusted;
> > ae0be8de9a53cd Michal Kubecek 2019-04-26 1255 vf = nla_nest_start_noflag(skb, IFLA_VF_INFO);
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1256 if (!vf)
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1257 goto nla_put_vfinfo_failure;
> > a6574349d068cb David S. Miller 2012-04-01 1258 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
> > 75345f888f700c Denis Kirjanov 2019-06-17 1259 nla_put(skb, IFLA_VF_BROADCAST, sizeof(vf_broadcast), &vf_broadcast) ||
> > a6574349d068cb David S. Miller 2012-04-01 1260 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1261 nla_put(skb, IFLA_VF_RATE, sizeof(vf_rate),
> > ed616689a3d95e Sucheta Chakraborty 2014-05-22 1262 &vf_rate) ||
> > a6574349d068cb David S. Miller 2012-04-01 1263 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
> > a6574349d068cb David S. Miller 2012-04-01 1264 &vf_tx_rate) ||
> > a6574349d068cb David S. Miller 2012-04-01 1265 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1266 &vf_spoofchk) ||
> > 1d8faf48c74b83 Rony Efraim 2013-06-13 1267 nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1268 &vf_linkstate) ||
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1269 nla_put(skb, IFLA_VF_RSS_QUERY_EN,
> > 01a3d796813d63 Vlad Zolotarov 2015-03-30 1270 sizeof(vf_rss_query_en),
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1271 &vf_rss_query_en) ||
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1272 nla_put(skb, IFLA_VF_TRUST,
> > dd461d6aa89476 Hiroshi Shimamoto 2015-08-28 1273 sizeof(vf_trust), &vf_trust))
> > 79aab093a0b537 Moshe Shemesh 2016-09-22 1274 goto nla_put_vf_failure;
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1275 if (dev->netdev_ops->ndo_get_vf_guid &&
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1276 !dev->netdev_ops->ndo_get_vf_guid(dev, vfs_num, &node_guid,
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1277 &port_guid)) {
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1278 if (nla_put(skb, IFLA_VF_IB_NODE_GUID, sizeof(node_guid),
> > a209fe95d542e8 Danit Goldberg 2019-11-06 @1279 &node_guid) ||
> > a209fe95d542e8 Danit Goldberg 2019-11-06 1280 nla_put(skb, IFLA_VF_IB_PORT_GUID, sizeof(port_guid),
> > a209fe95d542e8 Danit Goldberg 2019-11-06 @1281 &port_guid))
> >
> > These definitely seem like real bugs. We need to
> >
> > memset(&node_guid, 0, sizeof(node_guid));
> > memset(&port_guid, 0, sizeof(port_guid));
> >
> > Using an initializer = {} is not sufficient to clear struct holes. I
> > hope that we don't need to memzero_explicit() these like the very
> > paranoid folks say. :(
>
>
> Dan,
>
> How is it possible to leak? We are putting node_guid and port_guid after
> successful return of ndo_get_vf_guid(). It will ensure that GUIDs are
> initialized.
There is a 4 byte struct hole after node_guid.vf.
-> ipoib_get_vf_guid()
-> ib_get_vf_guid()
-> mlx5_ib_get_vf_guid()
mlx5_ib_get_vf_guid() doesn't have a memset(), plus relying on drivers
to clear the struct hole is unsafe.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-11-20 18:05 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-11-20 12:49 [leon-rdma:rdma-next 59/63] net/core/rtnetlink.c:1279 rtnl_fill_vfinfo() warn: check that 'node_guid' doesn't leak information (struct has a hole after 'vf') Dan Carpenter
2019-11-20 12:49 ` Dan Carpenter
2019-11-20 13:45 ` Leon Romanovsky
2019-11-20 18:05 ` Dan Carpenter
2019-11-20 18:05 ` Dan Carpenter
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