From b4502b43f08968e8b996ba56c09dd3856c844553 Mon Sep 17 00:00:00 2001 From: Yong Wang Date: Thu, 25 Jan 2018 04:01:04 -0500 Subject: [PATCH] net/i40e: fix memory leak 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") Cc: stable@dpdk.org Signed-off-by: Yong Wang Acked-by: Beilei Xing --- 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 c4df65df0c..277c1a8367 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -7188,11 +7188,13 @@ 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; } @@ -7201,16 +7203,26 @@ 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); @@ -7639,6 +7651,7 @@ 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]; @@ -7653,11 +7666,13 @@ 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; } @@ -7670,11 +7685,20 @@ 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( @@ -7684,6 +7708,7 @@ 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); @@ -9295,9 +9320,16 @@ 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 a4320b1b50..c392dc4ce2 100644 --- a/drivers/net/i40e/i40e_fdir.c +++ b/drivers/net/i40e/i40e_fdir.c @@ -1595,8 +1595,15 @@ 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); } -- 2.20.1