From patchwork Fri Jul 5 08:57:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 13724597 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 96306145FF5 for ; Fri, 5 Jul 2024 08:59:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720169987; cv=none; b=ASoyvSuGW4Yd53nvPo5agUel83gdTyU/aoP00qgFPWAWlZG8b3hf+M2lwJMOXr+sn8C7hzm18DDLEUdNn6i1xmLMyHaRUKBLcgfaBVVJJWZ1NeLpObo4vL0cciJio1/9rd6SiVHkJbLsb8IIIsBiK11pKXeaW9+AywKzMNnisbE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720169987; c=relaxed/simple; bh=CedVCQo+0GKkgNKCCmvoilaB3g6qvmzHgL4rtjOFtPo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MZFvh6pYWzexm8f5fnncmI+1ixpbkrB07J2W3Gu09vvCTsLwfzUTByjZ7Bq/zPHlm76o091FvPyeHgqiSyCdeYMK85CX2v07RwkM+6fhnf0/f5aGBbdZI35b7JIhpmvYLVfy76G+0wZT9jRhpxcm3k8csvHaKcBgy3vsa7cfMik= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hadess.net; spf=pass smtp.mailfrom=hadess.net; arc=none smtp.client-ip=217.70.183.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hadess.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hadess.net Received: by mail.gandi.net (Postfix) with ESMTPSA id B6EF66000D; Fri, 5 Jul 2024 08:59:36 +0000 (UTC) From: Bastien Nocera To: linux-bluetooth@vger.kernel.org Cc: Bastien Nocera Subject: [BlueZ v2 03/11] shared/shell: Fix fd leak if -s is passed multiple times Date: Fri, 5 Jul 2024 10:57:31 +0200 Message-ID: <20240705085935.1255725-4-hadess@hadess.net> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240705085935.1255725-1-hadess@hadess.net> References: <20240705085935.1255725-1-hadess@hadess.net> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-GND-Sasl: hadess@hadess.net Error: RESOURCE_LEAK (CWE-772): [#def37] [important] bluez-5.76/src/shared/shell.c:1305:5: open_fn: Returning handle opened by "open". [Note: The source code implementation of the function has been overridden by a user model.] bluez-5.76/src/shared/shell.c:1305:5: var_assign: Assigning: "data.init_fd" = handle returned from "open(optarg, 0)". bluez-5.76/src/shared/shell.c:1305:5: overwrite_var: Overwriting handle "data.init_fd" in "data.init_fd = open(optarg, 0)" leaks the handle. 1303| case 's': 1304| if (optarg) 1305|-> data.init_fd = open(optarg, O_RDONLY); 1306| if (data.init_fd < 0) 1307| printf("Unable to open %s: %s (%d)\n", optarg, --- src/shared/shell.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/shared/shell.c b/src/shared/shell.c index e8f75124f167..f3dc5e55b9ec 100644 --- a/src/shared/shell.c +++ b/src/shared/shell.c @@ -1312,11 +1312,12 @@ void bt_shell_init(int argc, char **argv, const struct bt_shell_opt *opt) data.mode = 1; goto done; case 's': - if (optarg) + if (optarg && data.init_fd < 0) { data.init_fd = open(optarg, O_RDONLY); - if (data.init_fd < 0) - printf("Unable to open %s: %s (%d)\n", optarg, + if (data.init_fd < 0) + printf("Unable to open %s: %s (%d)\n", optarg, strerror(errno), errno); + } break; case 't': if (optarg)