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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A463C43603 for ; Tue, 10 Dec 2019 22:45:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 404AE20836 for ; Tue, 10 Dec 2019 22:45:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576017909; bh=mqw6PVPrz8aX7WywNznPus2DoQhmJUuGlFdhOu5qNBk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=n8ffqgW5hQTJ0fEx2xS05pNQNWuANbLGb9Uj82we2J+Ser3XfNJ2qIl/TnM1+ujmU 9zYd+t/YWcrY0NCkZT7Bsrb3lNPC6S7v/wONjgqhyJXJYo8dQjbP7C/9tr/kAYWMAn g9pLhiLjGiEsWdFE69OlDOISXoK0VnowEvza63VY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727906AbfLJWpI (ORCPT ); Tue, 10 Dec 2019 17:45:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:50574 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726841AbfLJWar (ORCPT ); Tue, 10 Dec 2019 17:30:47 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 407AC2077B; Tue, 10 Dec 2019 22:30:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576017047; bh=mqw6PVPrz8aX7WywNznPus2DoQhmJUuGlFdhOu5qNBk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0phECtdvk9z1ympaCRw6VDGMJGZg4UumL5fWyPKfbXji5lgTneLKklk2FZRw1T2sd PPTU/qJolJk2jAzVdWYtSHNKkVVUH3Nd33MSSSRtasdJ4LFUPeAogHsm71ykK4AbkV af2zE3Ssy3m7mMOsXSup0t72dTFNlAhehqQhU3z0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Navid Emamdoost , Kalle Valo , Sasha Levin , linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 09/91] rtlwifi: prevent memory leak in rtl_usb_probe Date: Tue, 10 Dec 2019 17:29:13 -0500 Message-Id: <20191210223035.14270-9-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210223035.14270-1-sashal@kernel.org> References: <20191210223035.14270-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Navid Emamdoost [ Upstream commit 3f93616951138a598d930dcaec40f2bfd9ce43bb ] In rtl_usb_probe if allocation for usb_data fails the allocated hw should be released. In addition the allocated rtlpriv->usb_data should be released on error handling path. Signed-off-by: Navid Emamdoost Signed-off-by: Kalle Valo Signed-off-by: Sasha Levin --- drivers/net/wireless/realtek/rtlwifi/usb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/usb.c b/drivers/net/wireless/realtek/rtlwifi/usb.c index ae0c48f3c2bc0..1f02461de261c 100644 --- a/drivers/net/wireless/realtek/rtlwifi/usb.c +++ b/drivers/net/wireless/realtek/rtlwifi/usb.c @@ -1088,8 +1088,10 @@ int rtl_usb_probe(struct usb_interface *intf, rtlpriv->hw = hw; rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32), GFP_KERNEL); - if (!rtlpriv->usb_data) + if (!rtlpriv->usb_data) { + ieee80211_free_hw(hw); return -ENOMEM; + } /* this spin lock must be initialized early */ spin_lock_init(&rtlpriv->locks.usb_lock); @@ -1152,6 +1154,7 @@ int rtl_usb_probe(struct usb_interface *intf, _rtl_usb_io_handler_release(hw); usb_put_dev(udev); complete(&rtlpriv->firmware_loading_complete); + kfree(rtlpriv->usb_data); return -ENODEV; } EXPORT_SYMBOL(rtl_usb_probe); -- 2.20.1