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=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 7A23BC07E96 for ; Tue, 6 Jul 2021 11:49:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5EA8F61F57 for ; Tue, 6 Jul 2021 11:49:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232618AbhGFLwU (ORCPT ); Tue, 6 Jul 2021 07:52:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:47578 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237369AbhGFLgH (ORCPT ); Tue, 6 Jul 2021 07:36:07 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0196861D8C; Tue, 6 Jul 2021 11:27:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625570835; bh=Ev6q87NjZyTZuJ9GPbmdDzgZN7HeAbVldkXVmGDfPB8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fz2NfqSxlEqHwUpUojrZqsVaD37x838kKyxuZkjRLCP/5cddRp66QVk4idui8mwQX IJ227FDb3rv01cy/3yv6se1PZT3CK71qsx+GMOKg57zh0EmyW251F8P0vwiUxS1lzi t8glaO0rNDc6bB/xY5Hw4E1u65q5dk89xXMDMAMcq8AcApDXbic2TZzJkVfmC5N80L irOultxscnJKoRepmoFXBdshKNQWycwpz5QMJsJZ4HrBPhMCHw+Lbjotbd+hDYNU1J caGwapQ+QMBZVcuYG/sCYcJbb3SYH1Pqs9eJKMWmgPtIcbx1MAu4Avs9OdnsEu4kwx VyWEdCpo1Xfyw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Yang Yingliang , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 29/55] fjes: check return value after calling platform_get_resource() Date: Tue, 6 Jul 2021 07:26:12 -0400 Message-Id: <20210706112638.2065023-29-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210706112638.2065023-1-sashal@kernel.org> References: <20210706112638.2065023-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Yang Yingliang [ Upstream commit f18c11812c949553d2b2481ecaa274dd51bed1e7 ] It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value. Signed-off-by: Yang Yingliang Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/fjes/fjes_main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index 1979f8f8dac7..778d3729f460 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -1277,6 +1277,10 @@ static int fjes_probe(struct platform_device *plat_dev) adapter->interrupt_watch_enable = false; res = platform_get_resource(plat_dev, IORESOURCE_MEM, 0); + if (!res) { + err = -EINVAL; + goto err_free_control_wq; + } hw->hw_res.start = res->start; hw->hw_res.size = resource_size(res); hw->hw_res.irq = platform_get_irq(plat_dev, 0); -- 2.30.2