From patchwork Thu Nov 9 13:42:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 1862027 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SR3LD2FBYz1yRF for ; Fri, 10 Nov 2023 00:52:36 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r15Nq-0001Gv-UO; Thu, 09 Nov 2023 08:47:47 -0500 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 1r15NN-0007ss-C4; Thu, 09 Nov 2023 08:47:18 -0500 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r15NI-00027H-9W; Thu, 09 Nov 2023 08:47:14 -0500 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 717F731B1E; Thu, 9 Nov 2023 16:43:14 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 7E6DB344C4; Thu, 9 Nov 2023 16:43:06 +0300 (MSK) Received: (nullmailer pid 1461876 invoked by uid 1000); Thu, 09 Nov 2023 13:43:02 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Vladimir Sementsov-Ogievskiy , Stefan Hajnoczi , Maksim Davydov , Peter Maydell , Michael Tokarev Subject: [Stable-8.1.3 38/55] block/nvme: nvme_process_completion() fix bound for cid Date: Thu, 9 Nov 2023 16:42:42 +0300 Message-Id: <20231109134300.1461632-38-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Vladimir Sementsov-Ogievskiy NVMeQueuePair::reqs has length NVME_NUM_REQS, which less than NVME_QUEUE_SIZE by 1. Fixes: 1086e95da17050 ("block/nvme: switch to a NVMeRequest freelist") Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Stefan Hajnoczi Reviewed-by: Maksim Davydov Message-id: 20231017125941.810461-5-vsementsov@yandex-team.ru Signed-off-by: Peter Maydell (cherry picked from commit cc8fb0c3ae3c950eb40e969607e17ff16a7519ac) Signed-off-by: Michael Tokarev diff --git a/block/nvme.c b/block/nvme.c index b6e95f0b7e..0faedf3072 100644 --- a/block/nvme.c +++ b/block/nvme.c @@ -416,9 +416,10 @@ static bool nvme_process_completion(NVMeQueuePair *q) q->cq_phase = !q->cq_phase; } cid = le16_to_cpu(c->cid); - if (cid == 0 || cid > NVME_QUEUE_SIZE) { - warn_report("NVMe: Unexpected CID in completion queue: %"PRIu32", " - "queue size: %u", cid, NVME_QUEUE_SIZE); + if (cid == 0 || cid > NVME_NUM_REQS) { + warn_report("NVMe: Unexpected CID in completion queue: %" PRIu32 + ", should be within: 1..%u inclusively", cid, + NVME_NUM_REQS); continue; } trace_nvme_complete_command(s, q->index, cid);