net/ice: fix null pointer dereferences for tunnels

This patch fixes two null pointer dereferences in flow code detected by
coverity scan.

Coverity issue: 345815, 345816
Fixes: 94f00800d78b ("net/ice: fix VXLAN/NVGRE flow matching")

Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/ice/ice_generic_flow.c b/drivers/net/ice/ice_generic_flow.c
index 5fcf428..1c0adc7 100644 (file)
--- a/drivers/net/ice/ice_generic_flow.c
+++ b/drivers/net/ice/ice_generic_flow.c
@@ -464,7 +464,7 @@ static uint64_t ice_get_flow_field(const struct rte_flow_item pattern[],
                                           "Invalid VXLAN item");
                                return 0;
                        }
-                       if (vxlan_mask->vni[0] == UINT8_MAX &&
+                       if (vxlan_mask && vxlan_mask->vni[0] == UINT8_MAX &&
                                        vxlan_mask->vni[1] == UINT8_MAX &&
                                        vxlan_mask->vni[2] == UINT8_MAX)
                                input_set |= ICE_INSET_TUN_ID;
@@ -486,7 +486,7 @@ static uint64_t ice_get_flow_field(const struct rte_flow_item pattern[],
                                           "Invalid NVGRE item");
                                return 0;
                        }
-                       if (nvgre_mask->tni[0] == UINT8_MAX &&
+                       if (nvgre_mask && nvgre_mask->tni[0] == UINT8_MAX &&
                                        nvgre_mask->tni[1] == UINT8_MAX &&
                                        nvgre_mask->tni[2] == UINT8_MAX)
                                input_set |= ICE_INSET_TUN_ID;