From patchwork Tue Jun 11 17:36:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 13694060 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 29BA2C27C65 for ; Tue, 11 Jun 2024 17:39:01 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sH5Qv-00008T-ST; Tue, 11 Jun 2024 13:37:21 -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 1sH5Qu-000078-GW for qemu-devel@nongnu.org; Tue, 11 Jun 2024 13:37:20 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sH5Qs-0008Ua-NE for qemu-devel@nongnu.org; Tue, 11 Jun 2024 13:37:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718127438; 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=FJaqIGhVpINR8HgGtOg7iThzOx8v1LlBfHCauXsWLWw=; b=Iuh9DGiFcPz5A5kK+yeR1de8Hcmo2DtmRBs3Kn4qpQ+vQCTxgv/yP/LxkBHH0suhRlZZZp ZoWHl1TL6+0yMnkq+wh2Elwv8G2VgEuLPVUqOOJtskj601lBqBnli7Vv4ydvpuzgRsTlej vVkrhs8tPemIgeohty9vmVSOflHOq2E= Received: from mx-prod-mc-05.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-421-Mwc_56U2NX-uHg2rhw68ZA-1; Tue, 11 Jun 2024 13:37:13 -0400 X-MC-Unique: Mwc_56U2NX-uHg2rhw68ZA-1 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 4DFA31956086; Tue, 11 Jun 2024 17:37:12 +0000 (UTC) Received: from merkur.fritz.box (unknown [10.39.192.130]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 0123E19560AF; Tue, 11 Jun 2024 17:37:10 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL 4/8] qemu-io: add cvtnum() error handling for zone commands Date: Tue, 11 Jun 2024 19:36:54 +0200 Message-ID: <20240611173658.231831-5-kwolf@redhat.com> In-Reply-To: <20240611173658.231831-1-kwolf@redhat.com> References: <20240611173658.231831-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 11 X-Spam_score: 1.1 X-Spam_bar: + X-Spam_report: (1.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Stefan Hajnoczi cvtnum() parses positive int64_t values and returns a negative errno on failure. Print errors and return early when cvtnum() fails. While we're at it, also reject nr_zones values greater or equal to 2^32 since they cannot be represented. Reported-by: Peter Maydell Cc: Sam Li Signed-off-by: Stefan Hajnoczi Message-ID: <20240507180558.377233-1-stefanha@redhat.com> Reviewed-by: Sam Li Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- qemu-io-cmds.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c index f5d7202a13..e2fab57183 100644 --- a/qemu-io-cmds.c +++ b/qemu-io-cmds.c @@ -1739,12 +1739,26 @@ static int zone_report_f(BlockBackend *blk, int argc, char **argv) { int ret; int64_t offset; + int64_t val; unsigned int nr_zones; ++optind; offset = cvtnum(argv[optind]); + if (offset < 0) { + print_cvtnum_err(offset, argv[optind]); + return offset; + } ++optind; - nr_zones = cvtnum(argv[optind]); + val = cvtnum(argv[optind]); + if (val < 0) { + print_cvtnum_err(val, argv[optind]); + return val; + } + if (val > UINT_MAX) { + printf("Number of zones must be less than 2^32\n"); + return -ERANGE; + } + nr_zones = val; g_autofree BlockZoneDescriptor *zones = NULL; zones = g_new(BlockZoneDescriptor, nr_zones); @@ -1780,8 +1794,16 @@ static int zone_open_f(BlockBackend *blk, int argc, char **argv) int64_t offset, len; ++optind; offset = cvtnum(argv[optind]); + if (offset < 0) { + print_cvtnum_err(offset, argv[optind]); + return offset; + } ++optind; len = cvtnum(argv[optind]); + if (len < 0) { + print_cvtnum_err(len, argv[optind]); + return len; + } ret = blk_zone_mgmt(blk, BLK_ZO_OPEN, offset, len); if (ret < 0) { printf("zone open failed: %s\n", strerror(-ret)); @@ -1805,8 +1827,16 @@ static int zone_close_f(BlockBackend *blk, int argc, char **argv) int64_t offset, len; ++optind; offset = cvtnum(argv[optind]); + if (offset < 0) { + print_cvtnum_err(offset, argv[optind]); + return offset; + } ++optind; len = cvtnum(argv[optind]); + if (len < 0) { + print_cvtnum_err(len, argv[optind]); + return len; + } ret = blk_zone_mgmt(blk, BLK_ZO_CLOSE, offset, len); if (ret < 0) { printf("zone close failed: %s\n", strerror(-ret)); @@ -1830,8 +1860,16 @@ static int zone_finish_f(BlockBackend *blk, int argc, char **argv) int64_t offset, len; ++optind; offset = cvtnum(argv[optind]); + if (offset < 0) { + print_cvtnum_err(offset, argv[optind]); + return offset; + } ++optind; len = cvtnum(argv[optind]); + if (len < 0) { + print_cvtnum_err(len, argv[optind]); + return len; + } ret = blk_zone_mgmt(blk, BLK_ZO_FINISH, offset, len); if (ret < 0) { printf("zone finish failed: %s\n", strerror(-ret)); @@ -1855,8 +1893,16 @@ static int zone_reset_f(BlockBackend *blk, int argc, char **argv) int64_t offset, len; ++optind; offset = cvtnum(argv[optind]); + if (offset < 0) { + print_cvtnum_err(offset, argv[optind]); + return offset; + } ++optind; len = cvtnum(argv[optind]); + if (len < 0) { + print_cvtnum_err(len, argv[optind]); + return len; + } ret = blk_zone_mgmt(blk, BLK_ZO_RESET, offset, len); if (ret < 0) { printf("zone reset failed: %s\n", strerror(-ret));