From nobody Sun Nov 24 14:36:05 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1722892194; cv=none; d=zohomail.com; s=zohoarc; b=GXQB6GRMc0bfqskgd2SX++SvmsE1PURvC4yrlcLyuwUZ5KguMx2R6Zsrz9gwN/7bwWzizRAJ7PKRHA5VrjYFAtxrtd4QMknrZMdUcGip4QXGp6p/CTRbNaIs+dX4AJzDViuzcx/hRqmWrD4t082rur6C/7HO7jfBDFil3dnjPIg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1722892194; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=RHQVwpRuRkRhw1lpa9Co9MTZ+LhW22+O6wkPEE1xR2k=; b=YVffMociGhSfZSiOjo+Onosg94irdTwvCkgBLyuhqowBnRt2hal6bdVgrfSHeB9ZgfLbr9l+WdUfHqUE2OhLKf2t+BhCobKDAD8J1T8+KijtP7Xyu/XN+z3GeyzK0hJRilCDoWtKeFA/7tf/ZVfSEGeTXqTkswen1Hkg0WNd9/I= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1722892194268586.6576996026442; Mon, 5 Aug 2024 14:09:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sb4xQ-000166-H5; Mon, 05 Aug 2024 17:09:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sb4xH-0000T7-T3 for qemu-devel@nongnu.org; Mon, 05 Aug 2024 17:09:24 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sb4xD-0008UG-RS for qemu-devel@nongnu.org; Mon, 05 Aug 2024 17:09:23 -0400 Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-622-7-BAccifMUK6WwQtbNasaQ-1; Mon, 05 Aug 2024 17:09:17 -0400 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1973419560B3; Mon, 5 Aug 2024 21:09:16 +0000 (UTC) Received: from merkur.fritz.box (unknown [10.39.193.224]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id C0D2030001AA; Mon, 5 Aug 2024 21:09:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1722892159; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=RHQVwpRuRkRhw1lpa9Co9MTZ+LhW22+O6wkPEE1xR2k=; b=ZK99qDLnY1l6lRDcFLA8HbuqXMFv0Gu0ZySAFTUvg3BMYXuBp0MQuSMTFpw5T0Huf2V1HR fg+A9x56UZuGebc6BosKSO9NJBIVl2R53UzCKk/FR/M58dk5z1c/UNkUcyCWinMiLbRhDL eRt0DwOGCeryNEMKOTzeyAlL7pZwxCc= X-MC-Unique: 7-BAccifMUK6WwQtbNasaQ-1 From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL 08/13] vvfat: Fix bug in writing to middle of file Date: Mon, 5 Aug 2024 23:08:46 +0200 Message-ID: <20240805210851.314076-9-kwolf@redhat.com> In-Reply-To: <20240805210851.314076-1-kwolf@redhat.com> References: <20240805210851.314076-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.143, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1722892194712116600 Content-Type: text/plain; charset="utf-8" From: Amjad Alsharafi Before this commit, the behavior when calling `commit_one_file` for example with `offset=3D0x2000` (second cluster), what will happen is that we won't fetch the next cluster from the fat, and instead use the first cluster for the read operation. This is due to off-by-one error here, where `i=3D0x2000 !< offset=3D0x2000`, thus not fetching the next cluster. Signed-off-by: Amjad Alsharafi Reviewed-by: Kevin Wolf Tested-by: Kevin Wolf Message-ID: Signed-off-by: Kevin Wolf --- block/vvfat.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/vvfat.c b/block/vvfat.c index 086fedf474..a67cfa823b 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -2525,8 +2525,9 @@ commit_one_file(BDRVVVFATState* s, int dir_index, uin= t32_t offset) return -1; } =20 - for (i =3D s->cluster_size; i < offset; i +=3D s->cluster_size) + for (i =3D 0; i < offset; i +=3D s->cluster_size) { c =3D modified_fat_get(s, c); + } =20 fd =3D qemu_open_old(mapping->path, O_RDWR | O_CREAT | O_BINARY, 0666); if (fd < 0) { --=20 2.45.2