From patchwork Thu Jul 4 07:47:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Smirnov X-Patchwork-Id: 810067 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 876A11822E2 for ; Thu, 4 Jul 2024 07:48:25 +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=1720079314; cv=none; b=plQdT5dC+smpbW4beRU36V7aIGztg4E5KvIa63Ac8gW3f8YGVRkjWWuTC43TgDWaqq94hGl+EPsCMwD/9TWpjIy5LmDTzf+3+jNeTGmwQ/jHd1pFayIcUvGV/u1LlwubYuY9UZc+QmkFW17C6I7ujIA1plyRQMMliU67erYRxiI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720079314; c=relaxed/simple; bh=t2GUE0g6cDIds+77Ts9uSujdjNTOYN+AFOptOnG9SIo=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=RGkExy4I8QY4YmVMZEqWtZ/dJ+g7HsEQLqS3iEpahw48dYWCmqYpBcLwGX6XMUZyg/mrKt7gPpV853Oy4oNL8VTWuwXR3ADxmr1c8M0/ekyFwhxspAyV7KNqCFCl/4Uaqu4cImLIrIKO6UsqHqo8ztC1BhXdTTyCpunNcAM4h/I= 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 localhost.localdomain (217.23.187.157) 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; Thu, 4 Jul 2024 10:48:12 +0300 From: Roman Smirnov To: CC: Roman Smirnov Subject: [PATCH BlueZ v2] client/player: add error code handling to transport_recv() Date: Thu, 4 Jul 2024 10:47:58 +0300 Message-ID: <20240704074759.15844-1-r.smirnov@omp.ru> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-bluetooth@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: 6.1.0, Database issued on: 07/04/2024 07:17:12 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 59 X-KSE-AntiSpam-Info: Lua profiles 186319 [Jul 04 2024] X-KSE-AntiSpam-Info: Version: 6.1.0.4 X-KSE-AntiSpam-Info: Envelope from: r.smirnov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 21 0.3.21 ebee5449fc125b2da45f1a6a6bc2c5c0c3ad0e05 X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: {relay has no DNS name} X-KSE-AntiSpam-Info: {SMTP from is not routable} X-KSE-AntiSpam-Info: {Found in DNSBL: 217.23.187.157 in (user) dbl.spamhaus.org} X-KSE-AntiSpam-Info: omp.ru:7.1.1; 127.0.0.199:7.1.2; d41d8cd98f00b204e9800998ecf8427e.com:7.1.1; 217.23.187.157:7.1.2 X-KSE-AntiSpam-Info: ApMailHostAddress: 217.23.187.157 X-KSE-AntiSpam-Info: {DNS response errors} X-KSE-AntiSpam-Info: Rate: 59 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: 07/04/2024 07:26:00 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 7/4/2024 4:38:00 AM X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit It is necessary to add return value check as in sock_send(). Found with the SVACE static analysis tool. --- V1 -> V2: the name of the patch has been shortened client/player.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/client/player.c b/client/player.c index 0d031e4b0..1340a7584 100644 --- a/client/player.c +++ b/client/player.c @@ -4514,7 +4514,13 @@ static bool transport_recv(struct io *io, void *user_data) uint8_t buf[1024]; int ret, len; - ret = read(io_get_fd(io), buf, sizeof(buf)); + ret = io_get_fd(io); + if (ret < 0) { + bt_shell_printf("io_get_fd() returned %d\n", ret); + return true; + } + + ret = read(ret, buf, sizeof(buf)); if (ret < 0) { bt_shell_printf("Failed to read: %s (%d)\n", strerror(errno), -errno);