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=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 A313EC432C3 for ; Fri, 22 Nov 2019 07:29:31 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5265D20707 for ; Fri, 22 Nov 2019 07:29:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="u+hStftT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5265D20707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 47K7NS6NFkzDr9L for ; Fri, 22 Nov 2019 18:29:28 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=sashal@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="u+hStftT"; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 47K5SQ0xLfzDqDm for ; Fri, 22 Nov 2019 17:02:46 +1100 (AEDT) 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 E32052068F; Fri, 22 Nov 2019 06:02:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574402562; bh=SeAsYV7SVBrdZa76EEz+x99Xd94q22fntAQUgeEiTRU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u+hStftTAnKvuFzZmE2EQqG1+7FkkEragbWtPHbTcHNjLtlXhsamH/Fj0qI9qiWmk o3ACMd9d4dWVCk1gwiSC3q3TS0a8dJoK/rQVetbSsrZ4EX/oma11kU+Ozu7YgcVV53 msxz7e3nzPCIzA4U3XU5dbcWNdrfoQRG6J5BC2Xg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.9 67/91] net/wan/fsl_ucc_hdlc: Avoid double free in ucc_hdlc_probe() Date: Fri, 22 Nov 2019 01:01:05 -0500 Message-Id: <20191122060129.4239-66-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191122060129.4239-1-sashal@kernel.org> References: <20191122060129.4239-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , Peng Hao , netdev@vger.kernel.org, Wen Yang , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , Zhao Qiang Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Wen Yang [ Upstream commit 40752b3eae29f8ca2378e978a02bd6dbeeb06d16 ] This patch fixes potential double frees if register_hdlc_device() fails. Signed-off-by: Wen Yang Reviewed-by: Peng Hao CC: Zhao Qiang CC: "David S. Miller" CC: netdev@vger.kernel.org CC: linuxppc-dev@lists.ozlabs.org CC: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/wan/fsl_ucc_hdlc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index 7a62316c570d2..b2c1e872d5ed5 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -1117,7 +1117,6 @@ static int ucc_hdlc_probe(struct platform_device *pdev) if (register_hdlc_device(dev)) { ret = -ENOBUFS; pr_err("ucc_hdlc: unable to register hdlc device\n"); - free_netdev(dev); goto free_dev; } -- 2.20.1