From patchwork Thu May 16 13:40:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastien Nocera X-Patchwork-Id: 797314 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) (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 E0DFE28680 for ; Thu, 16 May 2024 13:40:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.200 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715866858; cv=none; b=F0nznGkNbqZODVRgf59nAhBzmEnV1EhkGLaMVAiQGa8M28ttcq11r6wyBdB1ykfWofefBHnLwGV5VwWDGWcFEagpe4F0z8t5/Ac7wbkTsjS9lQH95iqldgnvUNIyBJ+PRWF2LN4ykevFI8VnrLcpiwRAT0Pire8L3lDgBYZxrZg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715866858; c=relaxed/simple; bh=rdh7g/ZcB2Ex0TyD5R4Wpsa+9G5LzF2ApinH5cm8B7M=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=nrnLDSyh69wMBMlVvt5e0CtjEDEVh63NbNueR5ZD1BTjBtxGHOkOFd/f9jvPmm7Dgd8oHEqijyLJtQYlchWr71VyS68/aHqj9XKxqSgG9T7gXtplSkbPS6d1+YINvAXfFv6jQ/OSm6qYp5MMDKG/GdIUeEyjCq1P5ZMnH8O263s= 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=217.70.183.200 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 B63CC20005; Thu, 16 May 2024 13:40:53 +0000 (UTC) From: Bastien Nocera To: linux-bluetooth@vger.kernel.org Cc: Bastien Nocera Subject: [BlueZ] obexd: Fix memory leak Date: Thu, 16 May 2024 15:40:48 +0200 Message-ID: <20240516134053.102475-1-hadess@hadess.net> X-Mailer: git-send-email 2.44.0 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 To not leak "buf", we need object->buffer to take ownership of it using g_string_new_take() (but it's only available in 2.78 and newer), or we need to actually free "buf". Error: RESOURCE_LEAK (CWE-772): [#def66] [important] bluez-5.75/obexd/plugins/filesystem.c:411:3: alloc_arg: "g_file_get_contents" allocates memory that is stored into "buf". bluez-5.75/obexd/plugins/filesystem.c:418:3: noescape: Resource "buf" is not freed or pointed-to in "g_string_new". bluez-5.75/obexd/plugins/filesystem.c:440:2: leaked_storage: Variable "buf" going out of scope leaks the storage it points to. 438| *err = 0; 439| 440|-> return object; 441| 442| fail: --- obexd/plugins/filesystem.c | 1 + 1 file changed, 1 insertion(+) diff --git a/obexd/plugins/filesystem.c b/obexd/plugins/filesystem.c index f52927541bab..4887a0b8ac81 100644 --- a/obexd/plugins/filesystem.c +++ b/obexd/plugins/filesystem.c @@ -416,6 +416,7 @@ static void *capability_open(const char *name, int oflag, mode_t mode, } object->buffer = g_string_new(buf); + g_free(buf); if (size) *size = object->buffer->len;