From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBB09C4167D for ; Tue, 5 Apr 2022 08:56:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245117AbiDEIyK (ORCPT ); Tue, 5 Apr 2022 04:54:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233806AbiDEIIx (ORCPT ); Tue, 5 Apr 2022 04:08:53 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F42036C904; Tue, 5 Apr 2022 01:02:23 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5B2CC61748; Tue, 5 Apr 2022 08:02:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 681E1C385A0; Tue, 5 Apr 2022 08:02:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649145742; bh=sLwL2qpxVBnB32ES/8Ty5wpNoUexmJ1gY52PilcPFao=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aL9S0aXbFgOJVDjIqNZwnfaAwVGe0mS1axCs5HKQOAuRSAcj1POBa1VnbWYzq/vCN /4Pa04r0I4wfaQjufMn2GoBXL9dT8bJ88SFDdQT/ZnmaR9UkISm2Ic/i/NP4mjNXNh VlGNkG6IyPkzeXz6Y7fif2ortiBX3YObK4J+qV5o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 5.17 0506/1126] mt76: mt7915: fix possible memory leak in mt7915_mcu_add_sta Date: Tue, 5 Apr 2022 09:20:53 +0200 Message-Id: <20220405070422.479819690@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070407.513532867@linuxfoundation.org> References: <20220405070407.513532867@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lorenzo Bianconi [ Upstream commit a43736cd12d82913102eb49cb56787a5553e028f ] Free allocated skb in mt7915_mcu_add_sta routine in case of failures. Fixes: 89bbd3730f382 ("mt76: mt7915: rework starec TLV tags") Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index b2b3b5068789..1afeb7493268 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -2399,8 +2399,10 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif, } ret = mt7915_mcu_sta_wtbl_tlv(dev, skb, vif, sta); - if (ret) + if (ret) { + dev_kfree_skb(skb); return ret; + } if (sta && sta->ht_cap.ht_supported) { /* starec amsdu */ @@ -2414,8 +2416,10 @@ int mt7915_mcu_add_sta(struct mt7915_dev *dev, struct ieee80211_vif *vif, } ret = mt7915_mcu_add_group(dev, vif, sta); - if (ret) + if (ret) { + dev_kfree_skb(skb); return ret; + } out: return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_EXT_CMD(STA_REC_UPDATE), true); -- 2.34.1