[dpdk-stable] patch 'net/i40e: fix memory leak' has been queued to LTS release 17.11.1
Yuanhan Liu
yliu at fridaylinux.org
Thu Feb 1 10:47:30 CET 2018
Hi,
FYI, your patch has been queued to LTS release 17.11.1
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/03/18. So please
shout if anyone has objections.
Thanks.
--yliu
---
>From b520dc48a6942978d6b0b71ffc4952e97d7588ed Mon Sep 17 00:00:00 2001
From: Yong Wang <wang.yong19 at zte.com.cn>
Date: Thu, 25 Jan 2018 04:01:04 -0500
Subject: [PATCH] net/i40e: fix memory leak
[ upstream commit b4502b43f08968e8b996ba56c09dd3856c844553 ]
There are several func calls to rte_zmalloc() which don't have null
pointer check on the return value. And before return, the memory
is not freed. It fixes by adding null pointer check and rte_free().
Fixes: 078259773da9 ("net/i40e: store ethertype filter")
Fixes: 425c3325f0b0 ("net/i40e: store tunnel filter")
Fixes: c50474f31efe ("net/i40e: support tunnel filter to VF")
Fixes: 5c53c82c8174 ("net/i40e: store flow director filter")
Signed-off-by: Yong Wang <wang.yong19 at zte.com.cn>
Acked-by: Beilei Xing <beilei.xing at intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 32 ++++++++++++++++++++++++++++++++
drivers/net/i40e/i40e_fdir.c | 7 +++++++
2 files changed, 39 insertions(+)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 87c0cfe..5f2c504 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -7087,11 +7087,13 @@ i40e_dev_tunnel_filter_set(struct i40e_pf *pf,
node = i40e_sw_tunnel_filter_lookup(tunnel_rule, &check_filter.input);
if (add && node) {
PMD_DRV_LOG(ERR, "Conflict with existing tunnel rules!");
+ rte_free(cld_filter);
return -EINVAL;
}
if (!add && !node) {
PMD_DRV_LOG(ERR, "There's no corresponding tunnel filter!");
+ rte_free(cld_filter);
return -EINVAL;
}
@@ -7100,16 +7102,26 @@ i40e_dev_tunnel_filter_set(struct i40e_pf *pf,
vsi->seid, &cld_filter->element, 1);
if (ret < 0) {
PMD_DRV_LOG(ERR, "Failed to add a tunnel filter.");
+ rte_free(cld_filter);
return -ENOTSUP;
}
tunnel = rte_zmalloc("tunnel_filter", sizeof(*tunnel), 0);
+ if (tunnel == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ rte_free(cld_filter);
+ return -ENOMEM;
+ }
+
rte_memcpy(tunnel, &check_filter, sizeof(check_filter));
ret = i40e_sw_tunnel_filter_insert(pf, tunnel);
+ if (ret < 0)
+ rte_free(tunnel);
} else {
ret = i40e_aq_remove_cloud_filters(hw, vsi->seid,
&cld_filter->element, 1);
if (ret < 0) {
PMD_DRV_LOG(ERR, "Failed to delete a tunnel filter.");
+ rte_free(cld_filter);
return -ENOTSUP;
}
ret = i40e_sw_tunnel_filter_del(pf, &node->input);
@@ -7538,6 +7550,7 @@ i40e_dev_consistent_tunnel_filter_set(struct i40e_pf *pf,
else {
if (tunnel_filter->vf_id >= pf->vf_num) {
PMD_DRV_LOG(ERR, "Invalid argument.");
+ rte_free(cld_filter);
return -EINVAL;
}
vf = &pf->vfs[tunnel_filter->vf_id];
@@ -7552,11 +7565,13 @@ i40e_dev_consistent_tunnel_filter_set(struct i40e_pf *pf,
node = i40e_sw_tunnel_filter_lookup(tunnel_rule, &check_filter.input);
if (add && node) {
PMD_DRV_LOG(ERR, "Conflict with existing tunnel rules!");
+ rte_free(cld_filter);
return -EINVAL;
}
if (!add && !node) {
PMD_DRV_LOG(ERR, "There's no corresponding tunnel filter!");
+ rte_free(cld_filter);
return -EINVAL;
}
@@ -7569,11 +7584,20 @@ i40e_dev_consistent_tunnel_filter_set(struct i40e_pf *pf,
vsi->seid, &cld_filter->element, 1);
if (ret < 0) {
PMD_DRV_LOG(ERR, "Failed to add a tunnel filter.");
+ rte_free(cld_filter);
return -ENOTSUP;
}
tunnel = rte_zmalloc("tunnel_filter", sizeof(*tunnel), 0);
+ if (tunnel == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ rte_free(cld_filter);
+ return -ENOMEM;
+ }
+
rte_memcpy(tunnel, &check_filter, sizeof(check_filter));
ret = i40e_sw_tunnel_filter_insert(pf, tunnel);
+ if (ret < 0)
+ rte_free(tunnel);
} else {
if (big_buffer)
ret = i40e_aq_remove_cloud_filters_big_buffer(
@@ -7583,6 +7607,7 @@ i40e_dev_consistent_tunnel_filter_set(struct i40e_pf *pf,
&cld_filter->element, 1);
if (ret < 0) {
PMD_DRV_LOG(ERR, "Failed to delete a tunnel filter.");
+ rte_free(cld_filter);
return -ENOTSUP;
}
ret = i40e_sw_tunnel_filter_del(pf, &node->input);
@@ -9194,9 +9219,16 @@ i40e_ethertype_filter_set(struct i40e_pf *pf,
if (add) {
ethertype_filter = rte_zmalloc("ethertype_filter",
sizeof(*ethertype_filter), 0);
+ if (ethertype_filter == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+
rte_memcpy(ethertype_filter, &check_filter,
sizeof(check_filter));
ret = i40e_sw_ethertype_filter_insert(pf, ethertype_filter);
+ if (ret < 0)
+ rte_free(ethertype_filter);
} else {
ret = i40e_sw_ethertype_filter_del(pf, &node->input);
}
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 525611a..bf94723 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1616,8 +1616,15 @@ i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
if (add) {
fdir_filter = rte_zmalloc("fdir_filter",
sizeof(*fdir_filter), 0);
+ if (fdir_filter == NULL) {
+ PMD_DRV_LOG(ERR, "Failed to alloc memory.");
+ return -ENOMEM;
+ }
+
rte_memcpy(fdir_filter, &check_filter, sizeof(check_filter));
ret = i40e_sw_fdir_filter_insert(pf, fdir_filter);
+ if (ret < 0)
+ rte_free(fdir_filter);
} else {
ret = i40e_sw_fdir_filter_del(pf, &node->fdir.input);
}
--
2.7.4
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