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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 9715AC433E0 for ; Fri, 19 Jun 2020 15:11:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6875621582 for ; Fri, 19 Jun 2020 15:11:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592579472; bh=s5VTgz3lh6ug1RQKbvH44o1bT2kNj30b37wGwCqxAZ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uyUx9AIt04949zFxLvXvRtTsDfXGjuQANf+46POEpO+7MVvuIjw3D9gOhSITHV6Ot LGYqw3CHLdpdZM1IGk5dxt1YfT/xb3d8uhADiZFhSnx9KpqwXBESToDhS6dd2X/Gx1 s9/wA1ZKEow/3ufHKR8ZIJHEjwhQUQaH+CUT0vLU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2392082AbgFSPLL (ORCPT ); Fri, 19 Jun 2020 11:11:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:41218 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391649AbgFSPLA (ORCPT ); Fri, 19 Jun 2020 11:11:00 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A3693206FA; Fri, 19 Jun 2020 15:10:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592579460; bh=s5VTgz3lh6ug1RQKbvH44o1bT2kNj30b37wGwCqxAZ4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=STIckhgiDlUzFldEji0qC3FGaXd0kKBJv9hv3x0jcYmkBfoznR8W6lAWdvnajvJ8c MPMjISzdtbg6BLMt6ZuNkXf6HVQnN0q5dffy0RThQqbuymOl55yuwBQgPnFopUB1Z8 7E6LwN/ru5jWJvztfeo3Wr6mIi/toivW7R1df72U= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jacob Keller , Andrew Bowers , Jeff Kirsher , Sasha Levin Subject: [PATCH 5.4 143/261] ice: fix potential double free in probe unrolling Date: Fri, 19 Jun 2020 16:32:34 +0200 Message-Id: <20200619141656.728832598@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200619141649.878808811@linuxfoundation.org> References: <20200619141649.878808811@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jacob Keller [ Upstream commit bc3a024101ca497bea4c69be4054c32a5c349f1d ] If ice_init_interrupt_scheme fails, ice_probe will jump to clearing up the interrupts. This can lead to some static analysis tools such as the compiler sanitizers complaining about double free problems. Since ice_init_interrupt_scheme already unrolls internally on failure, there is no need to call ice_clear_interrupt_scheme when it fails. Add a new unroll label and use that instead. Signed-off-by: Jacob Keller Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/ice/ice_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 2408f0de95fc..d0ccb7ad447b 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2900,7 +2900,7 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent) if (err) { dev_err(dev, "ice_init_interrupt_scheme failed: %d\n", err); err = -EIO; - goto err_init_interrupt_unroll; + goto err_init_vsi_unroll; } /* Driver is mostly up */ @@ -2986,6 +2986,7 @@ err_msix_misc_unroll: ice_free_irq_msix_misc(pf); err_init_interrupt_unroll: ice_clear_interrupt_scheme(pf); +err_init_vsi_unroll: devm_kfree(dev, pf->vsi); err_init_pf_unroll: ice_deinit_pf(pf); -- 2.25.1