[dpdk-dev] [PATCH] net/ice: fix illegal pointer access in releasing vsi
Wenwu Ma
wenwux.ma at intel.com
Thu Apr 1 17:14:07 CEST 2021
When deleting the mac filter in ice_remove_all_mac_vlan_filters(),
TAILQ_FOREACH_SAFE should be used instead of TAILQ_FOREACH,
Otherwise, it will result in a illegal pointer access.
Signed-off-by: Wenwu Ma <wenwux.ma at intel.com>
---
drivers/net/ice/ice_ethdev.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 9c9b84a93..785750d9b 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -10,6 +10,8 @@
#include <sys/stat.h>
#include <unistd.h>
+#include <rte_tailq.h>
+
#include "base/ice_sched.h"
#include "base/ice_flow.h"
#include "base/ice_dcb.h"
@@ -1094,12 +1096,13 @@ ice_remove_all_mac_vlan_filters(struct ice_vsi *vsi)
{
struct ice_mac_filter *m_f;
struct ice_vlan_filter *v_f;
+ void *temp;
int ret = 0;
if (!vsi || !vsi->mac_num)
return -EINVAL;
- TAILQ_FOREACH(m_f, &vsi->mac_list, next) {
+ TAILQ_FOREACH_SAFE(m_f, &vsi->mac_list, next, temp) {
ret = ice_remove_mac_filter(vsi, &m_f->mac_info.mac_addr);
if (ret != ICE_SUCCESS) {
ret = -EINVAL;
@@ -1110,7 +1113,7 @@ ice_remove_all_mac_vlan_filters(struct ice_vsi *vsi)
if (vsi->vlan_num == 0)
return 0;
- TAILQ_FOREACH(v_f, &vsi->vlan_list, next) {
+ TAILQ_FOREACH_SAFE(v_f, &vsi->vlan_list, next, temp) {
ret = ice_remove_vlan_filter(vsi, &v_f->vlan_info.vlan);
if (ret != ICE_SUCCESS) {
ret = -EINVAL;
--
2.25.1
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