From patchwork Tue Mar 17 10:53:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 229240 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, 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 2C825C10F29 for ; Tue, 17 Mar 2020 11:17:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ED5E220663 for ; Tue, 17 Mar 2020 11:17:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584443837; bh=jPyM3qE2/ZKFJSaTlU0gmDV+PKPs99wF1Qnb/KkVCiA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=x6Berv7VIC9e6Emw+oOMx3vgI0VjoeNxCIUF7PSMesKzLPzqsETrbJp30WKw+TD5D 0B/L1uodIEj9kcXosfZqjVl2myJFFXgwl9azMhV2N7HPIow669Yp+FrIe6n0N/8oCO fAHUQrHjaX8GTHV0ymZoke7fHfU+UXaZ3W6egf68= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728247AbgCQLHj (ORCPT ); Tue, 17 Mar 2020 07:07:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:49312 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728748AbgCQLHh (ORCPT ); Tue, 17 Mar 2020 07:07:37 -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 B6DAD2071C; Tue, 17 Mar 2020 11:07:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1584443257; bh=jPyM3qE2/ZKFJSaTlU0gmDV+PKPs99wF1Qnb/KkVCiA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OecHsMX7FOMOJv2jmHessTMQycS4sxcZAKgcqkMlOBz85J4k2K21mPHKS3oEHjtT6 D5OpoZDEbd2HxFBSUVq+9YW9sfyuHB/hLDkG0B5VRYDmON07Y6eTBA9yAdCybw2lpO W6am8Nu/Bvfs5AnIi4kVmYiec+mYsy27BFFMrrr4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+b297c6825752e7a07272@syzkaller.appspotmail.com, Karsten Graul , Ursula Braun , Leon Romanovsky , "David S. Miller" Subject: [PATCH 5.5 026/151] net/smc: cancel event worker during device removal Date: Tue, 17 Mar 2020 11:53:56 +0100 Message-Id: <20200317103328.588704431@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200317103326.593639086@linuxfoundation.org> References: <20200317103326.593639086@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Karsten Graul [ Upstream commit ece0d7bd74615773268475b6b64d6f1ebbd4b4c6 ] During IB device removal, cancel the event worker before the device structure is freed. Fixes: a4cf0443c414 ("smc: introduce SMC as an IB-client") Reported-by: syzbot+b297c6825752e7a07272@syzkaller.appspotmail.com Signed-off-by: Karsten Graul Reviewed-by: Ursula Braun Reviewed-by: Leon Romanovsky Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/smc/smc_ib.c | 1 + 1 file changed, 1 insertion(+) --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -580,6 +580,7 @@ static void smc_ib_remove_dev(struct ib_ smc_smcr_terminate_all(smcibdev); smc_ib_cleanup_per_ibdev(smcibdev); ib_unregister_event_handler(&smcibdev->event_handler); + cancel_work_sync(&smcibdev->port_event_work); kfree(smcibdev); }