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 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 2973FC433EF for ; Tue, 18 Jan 2022 02:30:23 +0000 (UTC) Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-629-p33OMnzPONSWA6HiHyNZ1A-1; Mon, 17 Jan 2022 21:30:19 -0500 X-MC-Unique: p33OMnzPONSWA6HiHyNZ1A-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0CB1183DD23; Tue, 18 Jan 2022 02:30:15 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D855288F3; Tue, 18 Jan 2022 02:30:14 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 672A04BB7C; Tue, 18 Jan 2022 02:30:14 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 20I2U06H024879 for ; Mon, 17 Jan 2022 21:30:00 -0500 Received: by smtp.corp.redhat.com (Postfix) id 8560B492D18; Tue, 18 Jan 2022 02:30:00 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast04.extmail.prod.ext.rdu2.redhat.com [10.11.55.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 8190D492D19 for ; Tue, 18 Jan 2022 02:30:00 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 67F1E1044562 for ; Tue, 18 Jan 2022 02:30:00 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-548-nw-dkqL3Nbuoud7KrY-SQA-1; Mon, 17 Jan 2022 21:29:56 -0500 X-MC-Unique: nw-dkqL3Nbuoud7KrY-SQA-1 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 94CF260AAF; Tue, 18 Jan 2022 02:29:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 510E6C36AEB; Tue, 18 Jan 2022 02:29:54 +0000 (UTC) From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Date: Mon, 17 Jan 2022 21:19:20 -0500 Message-Id: <20220118021940.1942199-197-sashal@kernel.org> In-Reply-To: <20220118021940.1942199-1-sashal@kernel.org> References: <20220118021940.1942199-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.85 on 10.11.54.9 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 20I2U06H024879 X-loop: dm-devel@redhat.com Cc: Sasha Levin , Joe Thornber , dm-devel@redhat.com, agk@redhat.com, Mike Snitzer Subject: [dm-devel] [PATCH AUTOSEL 5.16 197/217] dm space map common: add bounds check to sm_ll_lookup_bitmap() X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit From: Joe Thornber [ Upstream commit cba23ac158db7f3cd48a923d6861bee2eb7a2978 ] Corrupted metadata could warrant returning error from sm_ll_lookup_bitmap(). Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/persistent-data/dm-space-map-common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c index 4a6a2a9b4eb49..bfbfa750e0160 100644 --- a/drivers/md/persistent-data/dm-space-map-common.c +++ b/drivers/md/persistent-data/dm-space-map-common.c @@ -283,6 +283,11 @@ int sm_ll_lookup_bitmap(struct ll_disk *ll, dm_block_t b, uint32_t *result) struct disk_index_entry ie_disk; struct dm_block *blk; + if (b >= ll->nr_blocks) { + DMERR_LIMIT("metadata block out of bounds"); + return -EINVAL; + } + b = do_div(index, ll->entries_per_block); r = ll->load_ie(ll, index, &ie_disk); if (r < 0) -- 2.34.1 -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9AF7C43219 for ; Tue, 18 Jan 2022 02:46:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348118AbiARCow (ORCPT ); Mon, 17 Jan 2022 21:44:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345599AbiARCbp (ORCPT ); Mon, 17 Jan 2022 21:31:45 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C212C035458; Mon, 17 Jan 2022 18:29:56 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 94E2461157; Tue, 18 Jan 2022 02:29:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 510E6C36AEB; Tue, 18 Jan 2022 02:29:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642472995; bh=+j/hF9KUbkWpVpF0TWD+CJhI+JZR0eec5rq0R+03JEU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hSML/tv1yJ3UAC9SDyDzOeaMVnMTHDyDLJd8N+BZGTt1ZV2WNBvYjEwtGmbP7zz5K oEOMAeE/ZsrjTQuW4afLPEyFDRygfAVIlMQ5RVN1jJV/2YrJ4k248c5YUnLdTh/NFB b2+4vzo/aJC4ZoPrLTz+fA1gZcCMm5bvCFOy8RaHOzN82zGwDhHmYGh53Q9syyPU64 hajeiuvLSNM7iibPIuyog6dtPxQb9KjFX8YYPJ2kLtohvoSzN7ZQ21EGgT+SpcjtCR o+a9sXR7tUYZNk5CCGDKWN+RbcMkmWv7oGNjJzeYscGM+2WXnuyHTsYt/HuvB8bicv M+oxrfwrBY3eA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Joe Thornber , Mike Snitzer , Sasha Levin , agk@redhat.com, dm-devel@redhat.com Subject: [PATCH AUTOSEL 5.16 197/217] dm space map common: add bounds check to sm_ll_lookup_bitmap() Date: Mon, 17 Jan 2022 21:19:20 -0500 Message-Id: <20220118021940.1942199-197-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220118021940.1942199-1-sashal@kernel.org> References: <20220118021940.1942199-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joe Thornber [ Upstream commit cba23ac158db7f3cd48a923d6861bee2eb7a2978 ] Corrupted metadata could warrant returning error from sm_ll_lookup_bitmap(). Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/persistent-data/dm-space-map-common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c index 4a6a2a9b4eb49..bfbfa750e0160 100644 --- a/drivers/md/persistent-data/dm-space-map-common.c +++ b/drivers/md/persistent-data/dm-space-map-common.c @@ -283,6 +283,11 @@ int sm_ll_lookup_bitmap(struct ll_disk *ll, dm_block_t b, uint32_t *result) struct disk_index_entry ie_disk; struct dm_block *blk; + if (b >= ll->nr_blocks) { + DMERR_LIMIT("metadata block out of bounds"); + return -EINVAL; + } + b = do_div(index, ll->entries_per_block); r = ll->load_ie(ll, index, &ie_disk); if (r < 0) -- 2.34.1