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=-5.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 644F9C31E50 for ; Mon, 17 Jun 2019 14:13:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 395C2206B7 for ; Mon, 17 Jun 2019 14:13:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="J2TwOOg4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727763AbfFQON3 (ORCPT ); Mon, 17 Jun 2019 10:13:29 -0400 Received: from mail-qk1-f195.google.com ([209.85.222.195]:44466 "EHLO mail-qk1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725906AbfFQON3 (ORCPT ); Mon, 17 Jun 2019 10:13:29 -0400 Received: by mail-qk1-f195.google.com with SMTP id p144so6205987qke.11 for ; Mon, 17 Jun 2019 07:13:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=A4+NWm3uj2vW47hGvQEajXQiT2mH6czBZ2S5v1C4m2A=; b=J2TwOOg4uFCQ5V4sjkSOauUtMooFNdefA59sKPmvuUNK7uSEf0SZ+L5IAaapTkR9UL yNMfQbWCae/R7eO6yJQx08kaKyK9nqodzyBeiLkN4vhkUnyXe70EoUjNcrdpqlJodG9S f+lHajYvJsZVbdC71ETaVN3WF8wXjFeIt99fJj39Y1is4W7Sud8qA4s+JGODUveushr0 LLagS2AZ2dXtSSgh4Cm8zja4ajiH4cX3+c4iS6LvT8eC+C3vhkcxFYytcnvPe2CfpkIK 6AZ3JvVSGl/F4N3kTsTEGqAnllXGL90LpxkldHFtvQ4rVvO4SVXcEXLc6gHUM/2YJtcq Vaqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=A4+NWm3uj2vW47hGvQEajXQiT2mH6czBZ2S5v1C4m2A=; b=Im/xTvpbUCsDTTVLiEAjrfQhFtkhNI9EZzTHo+8wSi4pUDY15wMIMorCcLD5aKJ2si fAOvPC4W+QVi4ObNnfgmSEh/UXsiUNdoue9f3lxZgyEI+jRXnEV4+bMgX2V0yUsO1rAf WVjc7g2eM/nMaEN4chKtMAt1pb07WjJN9d5Xa5twrovjcAcHgeEDT5gIj7wKXxSqZ2Ha +VGsaiy6WZsvaR1wJUXDlYgY1yBUXeiM1PB812Ow5IyBTceTu95yXMb6Bmu3V4/W9qbq 2YCds1jarRYKe+UVfr/3pl134zKY5QHiBQJnIztPsZIrSyW5UQoQ+Qkc3s1HrcVc+R7h Ck1w== X-Gm-Message-State: APjAAAWaugBT0/1sCx91yqnBJN3aoFZwAr/xitYKkXtrDsU9ksGcNdjc nGmCbhmhqM1Mt2E6C3O5Zr8= X-Google-Smtp-Source: APXvYqy7osGY+vzxkDkQlaDeRn+XdHSIdKCAIm2+EfSROS9Q0KncFtK6lZof35B1QSLilLBCqoW2UA== X-Received: by 2002:a37:68d2:: with SMTP id d201mr90585636qkc.65.1560780808643; Mon, 17 Jun 2019 07:13:28 -0700 (PDT) Received: from k8s-master.slicetest.com (kovt.soborka.net. [94.158.152.75]) by smtp.googlemail.com with ESMTPSA id x7sm6917426qth.37.2019.06.17.07.13.26 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Jun 2019 07:13:27 -0700 (PDT) From: Kovtunenko Oleksandr To: shaggy@kernel.org, jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org Cc: alexander198961@gmail.com Subject: [PATCH] set block device for dummy log . In this fix try to avoid null in the call bio_set_dev(bio, bdev) because in case bdev is null we have NULL pointer dereference ticket reference https://bugzilla.kernel.org/show_bug.cgi?id=203737 Date: Mon, 17 Jun 2019 14:13:21 +0000 Message-Id: <1560780801-5364-1-git-send-email-alexander198961@gmail.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --- fs/jfs/jfs_logmgr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index 6b68df3..3cd7026 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -1223,6 +1223,7 @@ static int open_dummy_log(struct super_block *sb) /* Make up some stuff */ dummy_log->base = 0; dummy_log->size = 1024; + dummy_log->bdev = sb->s_bdev; rc = lmLogInit(dummy_log); if (rc) { kfree(dummy_log); -- 1.8.3.1