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 9D2CEC3DA7A for ; Wed, 28 Dec 2022 15:55:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233640AbiL1PzU (ORCPT ); Wed, 28 Dec 2022 10:55:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42786 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233669AbiL1PzS (ORCPT ); Wed, 28 Dec 2022 10:55:18 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A9B818B1F for ; Wed, 28 Dec 2022 07:55:17 -0800 (PST) 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 ams.source.kernel.org (Postfix) with ESMTPS id EC6D3B81730 for ; Wed, 28 Dec 2022 15:55:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63CD4C433D2; Wed, 28 Dec 2022 15:55:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672242914; bh=nSangEpkODi3Yx9RWnu5jrOUO/BKt9zYkLzqko56W7k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=srDWttq0GBFVip6esFDArG9GQ4onNC79idxwgpZZ96TkWtzsY1WOcamuLx+dkvi3a uGDKc65JlErWmsVTmX7q5QYD8dJSeZch01nJVH/bb+G3imlHRp6fVPzFZibI1u14VV E0aia7nrjui5QNeHUjYPA2vcVAW/bIWXZfw/gPso= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ziyang Xuan , Kalle Valo , Sasha Levin Subject: [PATCH 6.1 0430/1146] wifi: plfxlc: fix potential memory leak in __lf_x_usb_enable_rx() Date: Wed, 28 Dec 2022 15:32:49 +0100 Message-Id: <20221228144341.862512545@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144330.180012208@linuxfoundation.org> References: <20221228144330.180012208@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ziyang Xuan [ Upstream commit 895b3b06efc285c1245242e9638b9ae251dc13ec ] urbs does not be freed in exception paths in __lf_x_usb_enable_rx(). That will trigger memory leak. To fix it, add kfree() for urbs within "error" label. Compile tested only. Fixes: 68d57a07bfe5 ("wireless: add plfxlc driver for pureLiFi X, XL, XC devices") Signed-off-by: Ziyang Xuan Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20221119051900.1192401-1-william.xuanziyang@huawei.com Signed-off-by: Sasha Levin --- drivers/net/wireless/purelifi/plfxlc/usb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/purelifi/plfxlc/usb.c b/drivers/net/wireless/purelifi/plfxlc/usb.c index 39e54b3787d6..76d0a778636a 100644 --- a/drivers/net/wireless/purelifi/plfxlc/usb.c +++ b/drivers/net/wireless/purelifi/plfxlc/usb.c @@ -247,6 +247,7 @@ static int __lf_x_usb_enable_rx(struct plfxlc_usb *usb) for (i = 0; i < RX_URBS_COUNT; i++) free_rx_urb(urbs[i]); } + kfree(urbs); return r; } -- 2.35.1