From patchwork Mon Apr 15 21:43:07 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Michael, Alice" X-Patchwork-Id: 1085966 X-Patchwork-Delegate: jeffrey.t.kirsher@intel.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=osuosl.org (client-ip=140.211.166.136; helo=silver.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44jhr15vC5z9s55 for ; Tue, 16 Apr 2019 07:45:19 +1000 (AEST) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id A6EFA23491; Mon, 15 Apr 2019 21:45:16 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZTl6PrtJtGDw; Mon, 15 Apr 2019 21:45:11 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by silver.osuosl.org (Postfix) with ESMTP id 48C8A233D8; Mon, 15 Apr 2019 21:45:11 +0000 (UTC) X-Original-To: intel-wired-lan@lists.osuosl.org Delivered-To: intel-wired-lan@lists.osuosl.org Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by ash.osuosl.org (Postfix) with ESMTP id 435D61BF39C for ; Mon, 15 Apr 2019 21:45:10 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 3F32085C98 for ; Mon, 15 Apr 2019 21:45:10 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LNKSG8jSG5gH for ; Mon, 15 Apr 2019 21:45:09 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by whitealder.osuosl.org (Postfix) with ESMTPS id 57A1285C92 for ; Mon, 15 Apr 2019 21:45:09 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Apr 2019 14:45:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,355,1549958400"; d="scan'208";a="223798955" Received: from alicemic-2.jf.intel.com ([10.166.16.121]) by orsmga001.jf.intel.com with ESMTP; 15 Apr 2019 14:45:08 -0700 From: Alice Michael To: alice.michael@osuosl.org, intel-wired-lan@lists.osuosl.org Date: Mon, 15 Apr 2019 14:43:07 -0700 Message-Id: <20190415214307.74674-1-alice.michael@intel.com> X-Mailer: git-send-email 2.19.2 MIME-Version: 1.0 Subject: [Intel-wired-lan] [next PATCH] i40e: Fix of memory leak and integer truncation in i40e_virtchnl.c X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Martyna Szapar Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" From: Martyna Szapar Fixed possible memory leak in i40e_vc_add_cloud_filter function: cfilter is being allocated and in some error conditions the function returns without freeing the memory. Fix of integer truncation from u16 (type of queue_id value) to u8 when calling i40e_vc_isvalid_queue_id function. Signed-off-by: Martyna Szapar --- .../net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 6a812eeaba8d..ebe18276cea1 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -181,7 +181,7 @@ static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) * check for the valid queue id **/ static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, - u8 qid) + u16 qid) { struct i40e_pf *pf = vf->pf; struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); @@ -3421,7 +3421,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { aq_ret = I40E_ERR_PARAM; - goto err; + goto err_out; } if (!vf->adq_enabled) { @@ -3429,7 +3429,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) "VF %d: ADq is not enabled, can't apply cloud filter\n", vf->vf_id); aq_ret = I40E_ERR_PARAM; - goto err; + goto err_out; } if (i40e_validate_cloud_filter(vf, vcf)) { @@ -3437,7 +3437,7 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) "VF %d: Invalid input/s, can't apply cloud filter\n", vf->vf_id); aq_ret = I40E_ERR_PARAM; - goto err; + goto err_out; } cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); @@ -3498,13 +3498,17 @@ static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) "VF %d: Failed to add cloud filter, err %s aq_err %s\n", vf->vf_id, i40e_stat_str(&pf->hw, ret), i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); - goto err; + goto err_free; } INIT_HLIST_NODE(&cfilter->cloud_node); hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); + /* release the pointer passing it to the collection */ + cfilter = NULL; vf->num_cloud_filters++; -err: +err_free: + kfree(cfilter); +err_out: return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, aq_ret); }