From patchwork Mon Mar 31 08:22:48 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Smirnov X-Patchwork-Id: 14033319 Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD32D156237; Mon, 31 Mar 2025 08:23:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.154.21.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743409418; cv=none; b=YDlk0kJoUWbKx7tPWcyeEL6l3Q+WjoIS/lVZUj0wkqizQEYswuC2905P7QYyEn+WDK4rCP6acPdzONt9Gq/ghHWrCxv2neg7jS/87eY9JuRo1RWg7mj4HdVUuDnxKzRJGHMSZWfGX9025OThF89K7ezalLZibexfdIpnq2rEII4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743409418; c=relaxed/simple; bh=r8jL3BbI10LRZsggeHTzFcnDeaZqzq+W5Xi79gABgxU=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=jNcmBnq72XXYj+/xoOYiT0HW6tdcO+oDXFgs28GANVggTQyMXXXNk8NgeGITA6nJspOVqksmUjDGS2mT/0F0+BYKZkeICoQzTrMxA9esNfiLQaIERY+WNJKga6KqYvTCBsl/aey/mdC84CQCfbfyU/1qTTyAXucR2uMkhhyX29g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru; spf=pass smtp.mailfrom=omp.ru; arc=none smtp.client-ip=90.154.21.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=omp.ru Received: from inp1wst083.omp.ru (81.22.207.138) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1258.12; Mon, 31 Mar 2025 11:23:17 +0300 From: Roman Smirnov To: Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Bharath SM CC: Roman Smirnov , Sachin Prabhu , Shirish Pargaonkar , , , , Subject: [PATCH 0/2] cifs: fix integer overflow in match_server() Date: Mon, 31 Mar 2025 11:22:48 +0300 Message-ID: <20250331082251.123381-1-r.smirnov@omp.ru> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 6.1.1, Database issued on: 03/31/2025 08:06:54 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 19 X-KSE-AntiSpam-Info: Lua profiles 192231 [Mar 31 2025] X-KSE-AntiSpam-Info: Version: 6.1.1.11 X-KSE-AntiSpam-Info: Envelope from: r.smirnov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 51 0.3.51 68896fb0083a027476849bf400a331a2d5d94398 X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: {SMTP from is not routable} X-KSE-AntiSpam-Info: {Found in DNSBL: 81.22.207.138 in (user) b.barracudacentral.org} X-KSE-AntiSpam-Info: {Found in DNSBL: 81.22.207.138 in (user) dbl.spamhaus.org} X-KSE-AntiSpam-Info: 127.0.0.199:7.1.2;omp.ru:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;inp1wst083.omp.ru:7.1.1;81.22.207.138:7.1.2 X-KSE-AntiSpam-Info: FromAlignment: s X-KSE-AntiSpam-Info: ApMailHostAddress: 81.22.207.138 X-KSE-AntiSpam-Info: {DNS response errors} X-KSE-AntiSpam-Info: Rate: 19 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 03/31/2025 08:08:00 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 3/31/2025 5:23:00 AM X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit If a large number is written to echo_interval during mount, an integer overflow may occur in match_server(): smb3_fs_context_parse_param() cifs_smb3_do_mount() sget() cifs_match_super() match_server() Found by Linux Verification Center (linuxtesting.org) with Svace. Roman Smirnov (2): cifs: fix integer overflow in match_server() cifs: remove unreachable code in cifs_get_tcp_session() fs/smb/client/connect.c | 6 +----- fs/smb/client/fs_context.c | 5 +++++ 2 files changed, 6 insertions(+), 5 deletions(-)